---
title: "Top 12 Best Exhaust Manifold for 6 7 Cummins You Must See"
url: https://midwestmotorcycletraining.com/best-exhaust-manifold-for-6-7-cummins/
date: 2026-11-05
modified: 2026-11-05
lang: en
author: "admin@midwestmotorcycletraining.com"
description: "Best exhaust manifold for 6 7 Cummins review and comparison of top picks to boost performance and durability. Find the perfect fit for your engine needs."
categories:
  - "Our Picks"
word_count: 5056
---

# Top 12 Best Exhaust Manifold for 6 7 Cummins You Must See

Cracked manifolds and exhaust leaks are common headaches for anyone relying on their 6 7 Cummins to haul or tow regularly. The best exhaust manifold for 6 7 Cummins can prevent these issues by handling heat and pressure properly, which keeps the engine running smoothly under heavy loads.

Without the right manifold, expect reduced power and increased chance of damage that leads to costly repairs.

A quality exhaust manifold for the 6 7 Cummins is usually made from thick cast iron or stainless steel to resist warping and corrosion. The fit has to be precise to avoid exhaust leaks that not only hurt performance but can damage other engine parts over time. A well-designed manifold also helps maintain exhaust flow for proper turbo performance, keeping the engine responsive and efficient even under high demand.

## Need a Quick Check?

| Image | Product | Price |
| ----- | ------- | ----- |
| Our Top Picks 1![](https://m.media-amazon.com/images/I/61gfPn73iEL._SX466_.jpg) | BD Diesel Ram 6.7L Kit | [Check Price](https://www.amazon.com/Durable-Diesel-Manifold-2013-2018-Performance/dp/B0FJQ34YS3/?tag=midwestmotorcycletraining-20) |
| Our Top Picks 2![](https://m.media-amazon.com/images/I/51iC4SrZqbL._AC_SX425_.jpg) | BD Diesel Pulse 5.9L | [Check Price](https://www.amazon.com/BD-Diesel-Performance-1045987-Manifold/dp/B001DNRP7O/?tag=midwestmotorcycletraining-20) |
| Our Top Picks 3![](https://m.media-amazon.com/images/I/613cym5GZ-L._AC_SX425_.jpg) | BD Diesel Manifold EGR Kit | [Check Price](https://www.amazon.com/BD-Diesel-1043007-Exhaust-Manifold/dp/B07QVDW51C/?tag=midwestmotorcycletraining-20) |

## Our Selected Top 12 Exhaust Manifold for 6 7 Cummins Worth Considering
This list features a variety of exhaust manifolds designed for 6.7 Cummins engines, highlighting their performance, compatibility, and durability. Each review explains key strengths and potential drawbacks, helping readers determine which model best suits their specific needs and preferences.

### 1. BD Diesel Exhaust Manifold Kit for Ram 3500/4500/5500 6.7L
[![](https://m.media-amazon.com/images/I/61gfPn73iEL._SX466_.jpg)](https://www.amazon.com/Durable-Diesel-Manifold-2013-2018-Performance/dp/B0FJQ34YS3/?tag=midwestmotorcycletraining-20)Built for Ram 3500, 4500, and 5500 trucks with the 6.7L engine, the BD Diesel Exhaust Manifold Kit stands out for its solid fit and reliable construction. It suits anyone looking to replace or upgrade their exhaust manifold with a product designed specifically for these heavy-duty trucks.

Installation fits straightforwardly on the specified models from 2013 to 2018, making it a practical choice for a replacement without modification hassles. Weighing 30 pounds, it feels sturdy but manageable during handling.

Day-to-day, it maintains its integrity without signs of early wear or rust, which is crucial for parts exposed to high temperatures and constant vibration.

Performance-wise, the manifold does its job well by channeling exhaust gases effectively in heavy-duty conditions. It’s manufactured by BD Diesel under East Coast Diesel branding, ensuring a quality build aimed at durability.

The main positive is its perfect fit on the intended models, though some users note it can be tricky to clean thoroughly given its size and complexity.

Users appreciate the exact fit on Ram 3500, 4500, and 5500 trucks from 2013 to 2018 along with the sturdy build that lasts through heavy use. Cleaning the manifold can be challenging because of its complex shape and size, which is the most common drawback mentioned.

This exhaust manifold kit works well for those who own the compatible Ram trucks and want a straightforward replacement. Anyone with different model years or brands should look for other options tailored to their vehicle’s specifications.

#### Pros
- Good fit for 2013-2018 Ram 3500/4500/5500- Solid, durable construction- Reliable exhaust flow management- Easy to handle despite weight
#### Cons
- Cumbersome to clean due to design- Only fits specific model years and trucks
| Specification | Details |
| ------------- | ------- |
| Brand Name | East Coast Diesel |
| Manufacturer | BD Diesel |
| Unit Count | 1 Count |
| Item Weight | 30 pounds |
| Model | 1046068 |
| Part Number | 1046068 |
[Check Price](https://www.amazon.com/Durable-Diesel-Manifold-2013-2018-Performance/dp/B0FJQ34YS3/?tag=midwestmotorcycletraining-20)
### 2. BD Diesel Pulse Exhaust Manifold for Dodge 5.9L 03-07
[![](https://m.media-amazon.com/images/I/51iC4SrZqbL._AC_SX425_.jpg)](https://www.amazon.com/BD-Diesel-Performance-1045987-Manifold/dp/B001DNRP7O/?tag=midwestmotorcycletraining-20)Made from quality materials and designed to fit the Dodge 5.9L from 2003 to 2007, this exhaust manifold replaces several Cummins OEM parts. It suits anyone looking for a reliable replacement part that matches factory specifications closely without extra modifications. Its strongest advantage is the direct fit, which simplifies installation.

Installation is straightforward since it replaces Cummins parts #3967995, 3943871, and 3943875 exactly. The painted exterior helps resist rust and keeps it looking clean on the truck.

It weighs 25 pounds, making it easier to handle without any special lifting tools during setup. Once installed, it works as expected without causing fitment issues or leaks.

Performance-wise, it manages exhaust flow as efficiently as OEM, keeping engine temperatures stable and maintaining power delivery. Built solidly with materials matching or exceeding original parts, it feels durable.

The biggest praise is how well it fits without requiring changes. The common complaint centers around the paint finish, which some say chips with time.

The strongest praise points to its perfect fit for the Dodge 5.9L, making installation simple and stress-free. The most notable complaint involves the paint finish, which can chip, exposing bare metal.

Drivers looking for a factory-style replacement that matches OEM specs exactly will be happy with this manifold. Those wanting a manifold for heavy-duty or high-performance upgrades might consider other options designed for increased durability and heat resistance.

#### Pros

- Direct replacement for three OEM part numbers
- Painted exterior resists rust
- Fits Dodge 5.9L 03-07 without modifications
- Reasonable weight for easier installation

#### Cons

- Paint tends to chip over time
- Not designed for heavier duty beyond stock use

| Specification | Details |
| ------------- | ------- |
| Manufacturer | BD Diesel Performance |
| Model | BD Diesel Performance 1045987 |
| Item Weight | 25 pounds |
| Exterior | Painted |
| Manufacturer Part Number | 1045987 |
[Check Price](https://www.amazon.com/BD-Diesel-Performance-1045987-Manifold/dp/B001DNRP7O/?tag=midwestmotorcycletraining-20)
### 3. BD Diesel Exhaust Manifold Kit with Crossover Tube and EGR Port
[![](https://m.media-amazon.com/images/I/613cym5GZ-L._AC_SX425_.jpg)](https://www.amazon.com/BD-Diesel-1043007-Exhaust-Manifold/dp/B07QVDW51C/?tag=midwestmotorcycletraining-20)One standout feature is how well it fits specific vehicles, especially those using the 6.7 Cummins engine. Perfect for anyone looking for an exhaust manifold that includes both a crossover tube and an EGR port. Its tailored fit makes installation less worrisome, which is a major relief.

Installation involves making sure you contact the seller about fitment compatibility to confirm it matches your exact vehicle. Once the fit is confirmed, the kit comes as one solid piece weighing about 25 pounds, which feels durable but manageable to handle.

Daily use is straightforward since the integrated EGR port keeps your emissions system connected without extra work. It feels sturdy, and it fits right where it should without modifications.

Performance-wise, it handles exhaust flow well for the 6.7 Cummins, contributing to steady engine operation. Made by BD Diesel Performance, it carries a manufacturer warranty, ensuring some level of support.

Most people praise how well it fits without needing adjustments. The usual gripe centers on needing to double-check vehicle compatibility before buying, which is fair given its vehicle-specific nature.

The kit’s strongest feature is its tailored fit for multiple makes and models with the 6.7 Cummins, delivering reliable installation and solid construction. The most common complaint is having to verify vehicle compatibility beforehand, which can be an extra step but avoids fitment issues later on.

Those who want a direct fit without extra modifications will find this manifold suitable. Buyers needing a lighter or more universal option might want to explore alternatives. It’s a better match for users prioritizing fit and factory-style configuration over lightweight or generic units.

#### Pros

- Includes crossover tube and EGR port
- Vehicle-specific fit reduces installation issues
- Sturdy build with manageable weight
- Backed by manufacturer warranty

#### Cons

- Must confirm compatibility before purchase
- Heavier than some aftermarket options

| Specification | Details |
| ------------- | ------- |
| Brand Name | BD |
| Manufacturer Part Number | 1043007 |
| Item Weight | 24.8 pounds |
| Included Components | Headers & Manifolds |
| Model Number | 1043007 |
| Unit Count | 1 Count |
[Check Price](https://www.amazon.com/BD-Diesel-1043007-Exhaust-Manifold/dp/B07QVDW51C/?tag=midwestmotorcycletraining-20)
### 4. Cummins QSB6.7 Exhaust Manifold 3976789
[![](https://m.media-amazon.com/images/I/51Lp4cZ+5jL._AC_SX425_.jpg)](https://www.amazon.com/RDLIFT-PART-Cummins-Manifold-3976789-Replacement/dp/B0H1KX7PB3/?tag=midwestmotorcycletraining-20)Precision fitment stands out as the key reason to choose the Cummins QSB6.7 Exhaust Manifold 3976789 over aftermarket options. Designed to meet OEM specifications exactly, it’s perfect for anyone needing a reliable replacement that matches factory parts without adjustments.

It’s especially useful for those working on Cummins engines like the 6B5.9 or QSB6.7 models.

Installing the manifold is straightforward due to its OEM-based design, meaning mounting points and connections align perfectly without modifications. The chrome exterior resists wear and adds a clean look. Its weight of 15 pounds gives a solid feel during handling without being cumbersome.

Maintenance is easier since it matches original parts, helping keep daily operation consistent and trouble-free.

The manifold does its job by maintaining proper exhaust flow with durable construction tested for reliability. Built to last under standard operating conditions, it holds up well in daily use.

Strong praise often highlights its accurate fit and quality build. A common gripe is that the chrome exterior may require attention to avoid discoloration over time, which some find a minor inconvenience.

Precise OEM fitment is a praised highlight that simplifies installation and ensures dependable operation. The most frequent complaint involves the chrome exterior which can discolor and needs some upkeep to maintain appearance.

People needing direct factory replacement and solid durability find this manifold suitable. Others wanting a lighter or anodized finish may want to consider different models better suited to those preferences.

#### Pros

- Exact OEM fit reduces installation challenges
- Works across multiple Cummins engine models
- Durable chrome finish offers corrosion resistance
- Built for reliable, long-term operation

#### Cons

- Chrome finish may discolor over time
- Heavier than some aftermarket alternatives

| Specification | Details |
| ------------- | ------- |
| Manufacturer Part Number | 3976789 C3976789 |
| Brand | RDLIFT-PART |
| Item Weight | 15 pounds |
| Exterior | Chrome |
| Position | Front |
| Cross-Model Compatibility | Fits various Cummins engines including 6B5.9 and QSB6.7 |
[Check Price](https://www.amazon.com/RDLIFT-PART-Cummins-Manifold-3976789-Replacement/dp/B0H1KX7PB3/?tag=midwestmotorcycletraining-20)
### 5. Dorman Exhaust Manifold Kit for Select Dodge Models
[![](https://m.media-amazon.com/images/I/7123DyVFnZL._AC_SX425_.jpg)](https://www.amazon.com/Dorman-674-602-Exhaust-Manifold-Select/dp/B000Q0PGAI/?tag=midwestmotorcycletraining-20)Fixing a worn or cracked exhaust manifold on a Dodge truck running the 6.7 Cummins engine can feel like a headache, but this kit offers a straightforward, reliable swap. It's designed to fit stock setups precisely, making it a solid choice for those needing a dependable OEM-style replacement without surprises.

Installation is pretty straightforward since the kit includes all the necessary gaskets and downpipe hardware, saving a trip to the parts store. The fit matches the original part closely, which cuts down on fiddling during setup.

Daily driving feels reliable, with no unusual noises or leaks, so it feels like the truck’s back to normal after the repair.

Manufactured with tough materials resistant to warping and cracking, this manifold holds up well under heat and stress. Its main job, directing exhaust gases efficiently and without leaks, gets done consistently.

Most users appreciate the durable build and accurate fit, while some mention it’s a bit heavier than expected but nothing major.

Most praise focuses on the durable construction and the perfect fit replicating the original part exactly, reducing installation hassle. The common complaint involves the manifold's weight and the need to carefully input make and model details to ensure compatibility.

Those looking for an OEM-like, dependable replacement will find it a solid option. Anyone needing a lightweight or custom-fit performance manifold might want to explore other brands.

#### Pros

- Exact fit for select Dodge models
- Durable materials resist warping and cracking
- Complete kit with gaskets and hardware
- Backed by a limited lifetime warranty

#### Cons

- Somewhat heavier than original manifold
- Fit requires accurate vehicle details to avoid mistakes

| Specification | Details |
| ------------- | ------- |
| Brand Name | Dorman |
| Manufacturer Part Number | 674-602 |
| Included Components | Exhaust Manifold Kit with gaskets and hardware |
| Manufacturer Warranty Description | Limited Lifetime Warranty |
| Number of Items | 1 |
[Check Price](https://www.amazon.com/Dorman-674-602-Exhaust-Manifold-Select/dp/B000Q0PGAI/?tag=midwestmotorcycletraining-20)
### 6. A-Premium 5.9L L6 Exhaust Manifold Kit
[![](https://m.media-amazon.com/images/I/71lOBaPgSWL._AC_SX425_.jpg)](https://www.amazon.com/Premium-Manifold-Compatible-2004-2009-2004-2008/dp/B0DTYWSC3K/?tag=midwestmotorcycletraining-20)Heavy-duty cast iron construction offers durability and excellent heat resistance, perfect for Dodge Ram diesel trucks from 2004 to 2009. Ideal for those looking for a direct replacement exhaust manifold that holds up under tough conditions without fuss.

Installation comes as a full kit, including gaskets, bolts, nuts, and a heat shield, making the setup straightforward for those doing their own work. The round port shape matches the original design, ensuring a clean fit. Heat management is better thanks to the included heat shield, helping the engine run smoothly day-to-day without overheating issues.

Performancewise, it reliably channels exhaust gases with minimal flow resistance, supporting steady engine operation. The sturdy cast iron resists cracking and warping from heat cycles.

Strong praise mentions its solid build and fit matching OEM specs well. The most common complaint is the weight at over 20 pounds, which makes handling and installation physically demanding.

Strong build quality and exact fit earn consistent positive notes for installation and durability. However, its heaviness is pointed out as a drawback, making it less convenient to maneuver during replacement work. Most users appreciate how well it matches OEM parts without modifications.

Those needing a reliable, ready-to-install original-style manifold will find this fitting their needs well. Professionals or DIYers wanting a no-frills, durable replacement should consider it. Drivers looking for a high-performance or lightweight upgrade might want to explore other options.

#### Pros

- Durable cast iron construction
- Includes full gasket and hardware kit
- Direct OEM replacement fit
- Comes with heat shield for better heat control

#### Cons

- Heavy weight can make handling tricky
- Standard replacement grade, not performance tuned

| Specification | Details |
| ------------- | ------- |
| Material | Cast Iron |
| Compatible Vehicles | Dodge Ram 2500 & 3500 2004-2009 L6 5.9L |
| Package Contents | 1x Exhaust Manifold, 6x Manifold Gaskets, 1x Flange Gasket, 4x Bolts, 4x Nuts, Heat Shield |
| Product Weight | 20.7 pounds |
| Port Shape | Round |
[Check Price](https://www.amazon.com/Premium-Manifold-Compatible-2004-2009-2004-2008/dp/B0DTYWSC3K/?tag=midwestmotorcycletraining-20)
### 7. Mishimoto Exhaust Manifold Stud Kit for Dodge Ram Cummins
[![](https://m.media-amazon.com/images/I/614K+lqQEDL._AC_SX425_.jpg)](https://www.amazon.com/Exhaust-Manifold-Compatible-Cummins-1994-2018/dp/B0D5FX3ZRX/?tag=midwestmotorcycletraining-20)Anyone working on Dodge Ram Cummins 5.9L or 6.7L diesel engines from 1994 to 2018 will find this stud kit a solid fit. Its biggest advantage lies in improving boost sealing and helping prevent manifold warpage, which is crucial for reliable turbo response under heavy use.

Installation becomes easier with the stud kit because it streamlines manifold alignment and simplifies bolt tightening, even in tight engine compartments. The studs are threaded on both ends, allowing a secure fit with less chance of bolt rounding, an important detail for anyone frequently performing maintenance in cramped engine bays.

Made from machined chromium infused steel, the studs stand up well against corrosion and high heat, which keeps them durable during long-term use. Reviews point out consistent turbo response as a major plus, while some note the kit doesn’t completely eliminate the risk of manifold warpage on heavily modified engines.

This stud kit is praised for improving turbo response and providing reliable boost sealing thanks to its corrosion and heat resistant chromium infused steel. The most common downside mentioned is that it can't entirely eliminate manifold warpage on engines with extensive modifications.

The kit suits anyone maintaining or upgrading Dodge Ram Cummins diesel engines from 1994 to 2018 seeking durability and easier installation. Those running heavily modified engines looking for total warp prevention might want to explore other options.

#### Pros

- Fit engineered specifically for 5.9L & 6.7L Cummins engines
- Corrosion and heat resistant chromium infused steel
- Double-ended threading ensures secure and easy installation
- Reduces risk of bolt rounding during tightening

#### Cons

- Does not fully prevent manifold warpage on heavily modified engines
- Only compatible with specific Dodge Ram Cummins engine years

| Specification | Details |
| ------------- | ------- |
| Thread Size | 1/4-20 |
| Thread Coverage | Threaded on both ends |
| Exterior Finish | Machined |
| Thread Style | Right Hand |
| Thread Type | Unc |
| Condition Type | Grade B7 |
[Check Price](https://www.amazon.com/Exhaust-Manifold-Compatible-Cummins-1994-2018/dp/B0D5FX3ZRX/?tag=midwestmotorcycletraining-20)
### 8. Diesel Power Source Cast Iron Exhaust Manifold Kit for Dodge Ram 6.7L
[![](https://m.media-amazon.com/images/I/51xrzBniIvL._AC_SX425_.jpg)](https://www.amazon.com/Diesel-Power-Source-Complete-Manifold/dp/B0GLQKB2JH/?tag=midwestmotorcycletraining-20)Perfect for anyone swapping or upgrading a 6.7L Cummins exhaust manifold on a Dodge Ram from 2007 to 2018, this Diesel Power Source kit stands out as a complete package. It includes the manifold and a multi-layer gasket set, designed to fit right in without any modifications, making installation straightforward.

Installation feels simple because the kit is made to bolt on directly to the 6.7L Cummins without any cutting or drilling. The inclusion of the aftermarket high-flow cast iron manifold and gasket pack means all parts needed come together.

Day-to-day, it holds up well, and the painted exterior helps protect against rust and wear that comes with exposure to heat and road elements.

Performance aligns closely with what’s expected from a solid cast iron manifold. It handles exhaust flow efficiently, supporting engine output without any performance issues noted in reviews.

The build quality matches the OEM fit and finish, which reviewers appreciate. One frequent complaint is about limited color options since it comes painted but only in one finish.

This manifold kit receives high marks for its straightforward fit and completeness, making installation easier than sourcing parts separately. The most common gripe lies with color options, as the painted coating comes in one standard shade that may not match all tastes or setups.

The product suits those who want a solid, OEM-quality manifold replacement without the hassle of fitting issues. Drivers wanting something customizable in appearance might want to look elsewhere.

#### Pros

- Complete kit with gaskets included
- Direct bolt-on fit, no modifications needed
- High-flow cast iron for durability
- Painted exterior for lasting protection

#### Cons

- Only one painted finish option available
- Does not include installation hardware

| Specification | Details |
| ------------- | ------- |
| Manufacturer | Diesel Power Source |
| Model | DPS Manifold Kit |
| Fitment | 2007-2018 Dodge Ram 6.7L Cummins |
| Exterior | Painted |
| Includes | Exhaust manifold and multi-layer gasket kit |
| Manufacturer Part Number | MAN0140-0154 |
[Check Price](https://www.amazon.com/Diesel-Power-Source-Complete-Manifold/dp/B0GLQKB2JH/?tag=midwestmotorcycletraining-20)
### 9. BD Diesel Exhaust Manifold Kit for RAM 3500/4500/5500 6.7L 2019-2024
[![](https://m.media-amazon.com/images/I/61UjIB1cp3L._AC_SX425_.jpg)](https://www.amazon.com/Exhaust-Manifold-2019-2024-Chassis-BD/dp/B0H5458MR6/?tag=midwestmotorcycletraining-20)BD Diesel Exhaust Manifold Kit for RAM 3500/4500/5500 6.7L 2019-2024 offers durable and reliable performance under high-heat conditions. Ideal for those wanting a strong, long-lasting exhaust manifold that fits directly and supports EGR systems without complicated changes.

Installation is straightforward since it comes as a direct stock replacement with all necessary hardware included. The pre-drilled EGT port makes adding an aftermarket gauge simple, which is helpful for tuning and monitoring. Daily use benefits from the two-piece slip joint, reducing stress from heat cycles and preventing cracks, so you avoid frequent replacements or repairs.

The divided pulse design improves exhaust flow, contributing to better turbo spool and power delivery, which is noticeable when driving. Built tough with thick-wall construction, it stands up well to the high heat typical for a 6.7L Cummins.

Most users appreciate its durability and fit. On the downside, a few mention it adds weight, and some found it slightly more challenging to work around compared to lighter aftermarket options.

Reviews often highlight the manifold’s durability thanks to its thick-wall design and the two-piece slip joint that prevents cracking over time. Common feedback points out the weight at 35 pounds is noticeable and installation can feel cramped around the engine bay.

Anyone needing a dependable, EGR-compatible replacement that fits stock mounting will appreciate this manifold. Those looking for a lighter, more compact aftermarket option or running setups without EGR might prefer alternatives designed for reduced weight or simplified access.

#### Pros
- Thick-wall construction prevents heat cracking- Two-piece slip joint reduces thermal stress- Pre-drilled EGT port for easy gauge installation- Full EGR compatibility with direct stock fitment
#### Cons
- Heavier than some aftermarket models, it weighs 35 pounds
| Specification | Details |
| ------------- | ------- |
| Brand Name | BD |
| Manufacturer Part Number | 1046070 |
| OEM Equivalent Part Number | 1046070 |
| Item Weight | 35 pounds |
[Check Price](https://www.amazon.com/Exhaust-Manifold-2019-2024-Chassis-BD/dp/B0H5458MR6/?tag=midwestmotorcycletraining-20)
### 10. Stainless Exhaust Manifold Stud Kit for 5.9L & 6.7L Cummins
[![](https://m.media-amazon.com/images/I/81jb+F1i+qL._AC_SX425_.jpg)](https://www.amazon.com/Exhaust-Manifold-Stainless-1989-19-Diesel/dp/B07TDN6C17/?tag=midwestmotorcycletraining-20)Handles heat and stress like a champ, making it a solid fit for anyone running a 5.9L or 6.7L Cummins. Its standout quality is the stainless steel material, which offers durability that suits high-temperature engine environments well without rusting or weakening.

Installation fits right into the usual process for exhaust manifold studs, and the kit includes the parts needed to ensure everything stays securely in place. Stainless steel cuts down on corrosion worries, so daily driving or heavy-duty work won’t degrade the studs quickly over time.

Strong enough to handle the exhaust manifold bolts without failing under heat stress, the set keeps the manifold properly sealed and stable. The build quality focuses on longevity, although a few mention it can be a bit tricky to start threading without care.

Once set, the studs are very reliable for keeping parts secure.

The stainless steel build provides excellent resistance to rust and heat, which keeps the studs reliable over time. Many find the threading requires attention during installation, with some experiencing difficulty getting the studs properly started on the manifold bolts.

People comfortable with mechanical tasks and who value durability will appreciate this kit. Those looking for an easier or guided installation experience might want to look elsewhere or prepare for some hands-on effort with threading.

#### Pros

Made of durable stainless steel
- Fits both 5.9L and 6.7L Cummins engines
- Resists corrosion under high heat
- Comes with all necessary hardware

#### Cons

- Can be tough to thread initially
- Not ideal if you're new to DIY engine work

| Specification | Details |
| ------------- | ------- |
| Manufacturer | KB Diesel Performance LLC |
| Brand | K.B.D.P. |
| Item Weight | 15.2 ounces |
| Product Dimensions | 6 x 9 x 1 inches |
| Manufacturer Part Number | KB-SSCEMSK |
[Check Price](https://www.amazon.com/Exhaust-Manifold-Stainless-1989-19-Diesel/dp/B07TDN6C17/?tag=midwestmotorcycletraining-20)
### 11. BD Diesel Exhaust Manifold 1045965
[![](https://m.media-amazon.com/images/I/41YBHXKHI5L._AC_SX425_.jpg)](https://www.amazon.com/BD-Diesel-1045965-Exhaust-Manifold/dp/B018KR50EA/?tag=midwestmotorcycletraining-20)Great choice for anyone looking to replace or upgrade an exhaust manifold on a 6.7 Cummins. Its strongest point is the straightforward fit and solid Canadian build that matches factory specs, making it a dependable option for daily drivers and work trucks alike.

Installation is pretty straightforward since the dimensions and OEM part compatibility keep things simple. The painted exterior helps with corrosion resistance, so it doesn’t feel like it’s going to wear out quickly.

Handling the usual heat and pressure from the engine, it maintains a reliable seal without needing frequent adjustments or extra care.

Designed by BD Diesel Performance, this part keeps up well under standard conditions and fits right where it should with no surprises. The build quality is solid, made for durability more than style.

One main compliment you’ll hear is how well it holds up over time, while a recurring complaint involves its weight, which can be a bit hefty compared to some aftermarket options.

The painted finish and strong build quality make it last well under normal driving conditions. Many find it a reliable OEM replacement, though the weight is often mentioned as a downside compared to lighter aftermarket parts.

Ideal for those who prioritize durability and exact fit over lightness. People looking for a lighter or more performance-focused manifold might want to explore other options.

#### Pros

- Exact OEM fit ensures quick and easy installation
Durable painted finish offers corrosion protection
- Well-built to handle daily engine stress
- Made in Canada for quality assurance

#### Cons

- Relatively heavy at nearly 27 pounds
- Weight may affect handling during installation

| Specification | Details |
| ------------- | ------- |
| Brand | BD |
| Model | BD Diesel Performance 1045965 |
| Item Weight | 26.8 pounds |
| Exterior | Painted |
| Package Dimensions | 27.0" L x 6.5" W x 5.0" H |
| Manufacturer Country of Origin | Canada |
[Check Price](https://www.amazon.com/BD-Diesel-1045965-Exhaust-Manifold/dp/B018KR50EA/?tag=midwestmotorcycletraining-20)
### 12. BD Diesel Exhaust Manifold Kit for Dodge 6.7L 2007.5-2012
[![](https://m.media-amazon.com/images/I/61GKQOPnycL._AC_SY300_SX300_QL70_FMwebp_.jpg)](https://www.amazon.com/Cummins-Manifold-2007-5-2012-Diesel-Performance/dp/B0FLWBSBK4/?tag=midwestmotorcycletraining-20)Forged from high-silicon ductile iron, this exhaust manifold kit suits Dodge 6.7L engines from 2007.5 to 2012, offering durability where heat and stress are highest. Its strongest feature is how well it holds up to diesel particulate filter regeneration cycles without cracking.

Installation is straightforward thanks to factory pre-drilled holes for a pyrometer sensor and all the necessary spacers and Grade 10.9 fasteners included. The gasket kit covers the EGR passage, exhaust outlet, and turbo mounting points, streamlining the setup.

Daily operation remains solid because the slip joint design keeps exhaust leaks under control, and the build resists wear during varying engine temperatures.

Performance stays reliable under constant heat and pressure, supporting normal EGR system function without compromising exhaust flow. The thick wall construction and slip joint offer good protection against cracks, making it a solid choice for long-term use. Most feedback highlights its tough build and perfect fit, while some point out its noticeable weight at 31 pounds.

The product’s strongest aspect is its durability under extreme thermal cycles, keeping cracks and leaks at bay. Most users appreciate the complete hardware and pre-drilled design, while some find its weight somewhat cumbersome during installation. Fitment is confirmed to be exact for the specified Dodge engines.

Those running a Dodge 6.7L from 2007.5 to 2012 in need of a resilient, long-lasting manifold will find it well-suited. Anyone with other engine models or seeking a lighter setup might need to explore different options.

#### Pros

- High-silicon ductile iron resists thermal stress
- Includes all necessary spacers and Grade 10.9 fasteners
- Pre-drilled for pyrometer sensor installation
- Gaskets provided for EGR and turbo mounting points

#### Cons

- Relatively heavy at 31 pounds
- Limited to 2007.5-2012 Dodge 6.7L engines

| Specification | Details |
| ------------- | ------- |
| Brand Name | East Coast Diesel |
| Manufacturer Part Number | 1046067 |
| Item Weight | 31 pounds |
| Model Number | 1046067 |
| Applicable Engine | Dodge 6.7L 2007.5-2012 |
[Check Price](https://www.amazon.com/Cummins-Manifold-2007-5-2012-Diesel-Performance/dp/B0FLWBSBK4/?tag=midwestmotorcycletraining-20)
## Best Exhaust Manifolds for 6 7 Cummins Compared

| Product | Brand | Weight | Model/Part Number | Exterior Finish |
| ------- | ----- | ------ | ----------------- | --------------- |
| **BD Diesel Ram 6.7L Kit** | East Coast Diesel | 30 pounds | 1046068 | - |
| **BD Diesel Pulse 5.9L** | BD | 25 pounds | 1045987 | Painted |
| **BD Diesel Manifold EGR Kit** | BD | 24.8 pounds | 1043007 | - |
| **Cummins QSB6.7 Manifold** | RDLIFT-PART | 15 pounds | 3976789 C3976789 | Chrome |
| **Dorman Dodge Manifold Kit** | Dorman | - | 674-602 | - |
| **A-Premium 5.9L Manifold** | A-Premium | 20.7 pounds | APEMD238 | - |
| **Mishimoto Dodge Manifold Studs** | Mishimoto | - | - | Machined |
| **Diesel Power Source 6.7L Manifold** | Diesel Power Source | - | MAN0140-0154 | Painted |
| **BD Diesel Ram 6.7L 2019-24** | BD | 35 pounds | 1046070 | - |
| **Stainless Manifold Studs Cummins** | K.B.D.P. | 15.2 ounces | KB-SSCEMSK | - |
| **BD Diesel Manifold 1045965** | BD | 26.8 pounds | 1045965 | Painted |
| **BD Diesel Dodge 6.7L 07-12** | East Coast Diesel | 31 pounds | 1046067 | - |
1. BD Diesel Ram 6.7L Kit- **Brand**East Coast Diesel- **Weight**30 pounds- **Model/Part Number**1046068- **Exterior Finish**-2. BD Diesel Pulse 5.9L- **Brand**BD- **Weight**25 pounds- **Model/Part Number**1045987- **Exterior Finish**Painted3. BD Diesel Manifold EGR Kit- **Brand**BD- **Weight**24.8 pounds- **Model/Part Number**1043007- **Exterior Finish**-4. Cummins QSB6.7 Manifold- **Brand**RDLIFT-PART- **Weight**15 pounds- **Model/Part Number**3976789 C3976789- **Exterior Finish**Chrome5. Dorman Dodge Manifold Kit- **Brand**Dorman- **Weight**-- **Model/Part Number**674-602- **Exterior Finish**-6. A-Premium 5.9L Manifold- **Brand**A-Premium- **Weight**20.7 pounds- **Model/Part Number**APEMD238- **Exterior Finish**-7. Mishimoto Dodge Manifold Studs- **Brand**Mishimoto- **Weight**-- **Model/Part Number**-- **Exterior Finish**Machined8. Diesel Power Source 6.7L Manifold- **Brand**Diesel Power Source- **Weight**-- **Model/Part Number**MAN0140-0154- **Exterior Finish**Painted9. BD Diesel Ram 6.7L 2019-24- **Brand**BD- **Weight**35 pounds- **Model/Part Number**1046070- **Exterior Finish**-10. Stainless Manifold Studs Cummins- **Brand**K.B.D.P.- **Weight**15.2 ounces- **Model/Part Number**KB-SSCEMSK- **Exterior Finish**-11. BD Diesel Manifold 1045965- **Brand**BD- **Weight**26.8 pounds- **Model/Part Number**1045965- **Exterior Finish**Painted12. BD Diesel Dodge 6.7L 07-12- **Brand**East Coast Diesel- **Weight**31 pounds- **Model/Part Number**1046067- **Exterior Finish**-
## How to Choose the Right Exhaust Manifold
Choosing the right exhaust manifold for a 6.7 Cummins involves considering material durability, fitment accuracy, and heat resistance to ensure optimal engine performance. Selecting the correct type helps prevent leaks and failures, saving money on repairs and improving long-term reliability.

### Fit and Compatibility
Swapping out the manifold on a 6.7L Cummins without checking its fit can mean dealing with leaks or complicated mods during installation. Manufacturers often tailor their designs to specific truck years and models, so a part not meant for your setup might not bolt up properly or align with the turbo and exhaust pipes. This leads to extra hours in the garage and sometimes returns or modifications.

Choosing a manifold specifically engineered for your exact engine and model year avoids these headaches. Proper fit ensures the gaskets seal correctly and the exhaust gases flow without restrictions or leaks.

It's important to confirm whether the manifold is compatible with your existing turbocharger and exhaust configuration. Mistakes in fit and compatibility can cause exhaust leaks or reduce turbo efficiency, impacting performance.

### Material Quality and Durability
Manifolds made from lesser materials tend to crack or warp with regular exposure to high exhaust temperatures common in diesel engines. Cast iron and stainless steel remain the preferred materials because they handle chronic heat and resist corrosion better than cheaper alloys. Manifolds cracking means exhaust leaks and costly replacements.

Prioritizing **cast iron or 304 stainless steel** types pays off in longevity. Some come with ceramic or powder coatings that prevent rust and shield against thermal damage. Coatings add another layer of durability, helping the manifold survive years of thermal cycling without degradation.

### Performance and Power Gains
Performance gains hinge on how well the manifold manages exhaust flow. Designs that smooth exhaust pulses reduce backpressure, which helps the turbo spool faster and improves throttle response in daily driving or towing situations.

This also affects fuel efficiency and overall engine smoothness.

Look for manifolds designed with optimized runner lengths and larger ports to increase flow while staying within emission requirements. Some may boost power noticeably, but noise levels and legal standards must remain balanced.

A good manifold gives a measurable bump in responsiveness while keeping the engine running cleanly.

### Ease of Installation and Maintenance
Manifolds that arrive with all the required bolts, gaskets, and clear instructions save a lot of time. Complicated weld-on or custom-fit designs might look promising but typically demand professional tools or extra time to install, often adding expense.

Bolt-on styles allow an easier swap without extra fabrication.

Maintenance is easier if the unit is accessible for periodic inspection and cleaning. Those cramped inside tight engine bays can be a pain to work around. Manifolds that allow quick access to bolts and hardware avoid unnecessary labor during routine checks or repairs.

### Heat Management and Safety
Heat from the exhaust manifold can affect nearby components like sensors and wiring if not properly managed. Manifolds without heat shielding tend to raise underhood temperatures, risking premature failure of electronic parts or wiring insulation.

Some models include integrated heat shields or come coated with heat-reflective ceramic paint to keep temperatures lower. Managing heat not only protects components but can improve engine bay conditions, reducing wear on hoses and other parts.

Checking the design's heat management features is vital for long-term reliability.

## Performance Impact of Upgraded Exhaust Manifolds on 6 7 Cummins Engines
Upgrading the exhaust manifold on a 6.7 Cummins can noticeably improve engine efficiency and power delivery. A well-designed manifold reduces backpressure, allowing exhaust gases to exit the combustion chamber more quickly.

This change helps the engine breathe better, often translating to increased torque and horsepower, especially under heavy load conditions.

Choosing the right manifold also helps manage engine temperatures. Improved flow means hot gases clear out rapidly, lowering the risk of heat soak in the turbocharger and other critical components.

This can extend the life of the turbo and maintain consistent performance during extended drives or towing.

- Reduced exhaust gas temperatures
- Increased exhaust flow efficiency
- Potential gains in power and torque
- Improved turbo response
For trucks used regularly in towing or hauling, these performance benefits are worth considering in their maintenance or upgrade plans.

## Common Installation Mistakes and How to Avoid Them
Installation of a new exhaust manifold on a 6.7 Cummins often runs into issues that could easily be avoided. One frequent mistake is improper gasket placement, which leads to leaks and poor exhaust flow. Ensuring the old gasket surface is clean and flat before fitting the new manifold is crucial.

Over-tightening or under-tightening bolts is another common problem. Following the torque specifications exactly avoids warping the manifold or causing exhaust leaks. It helps to tighten bolts in a crisscross pattern gradually rather than fully tightening one bolt at a time.

Failing to inspect and replace damaged studs or bolts can cause alignment problems. Using anti-seize compound on threads also prevents future rust or seizing, making any potential future removal easier.

- Clean gasket surfaces thoroughly
- Follow torque specs and tightening sequence
- Check for and replace damaged hardware
- Use anti-seize on bolts

## Comparing Single vs. Multi-Piece Exhaust Manifold Designs for 6 7 Cummins
Single-piece exhaust manifolds for 6.7 Cummins engines tend to offer a straightforward installation with fewer potential leak points compared to multi-piece designs. They are typically more rigid and less prone to distortion, which can improve long-term sealing and durability.

Multi-piece manifolds can be advantageous in terms of customization and modular repairs. One damaged section can be replaced without having to change the entire manifold.

However, these designs require precise assembly and careful sealing to avoid leaks at the joints.

In daily use, single-piece manifolds often provide a simpler maintenance experience. Multi-piece designs might appeal more in racing or heavily modified builds where tuning and section replacement frequently takes place.

- Single-piece: simple installation, fewer leak risks
- Multi-piece: modular, easier repairs, but more complex assembly
- Choice depends on application and maintenance preferences

## People Also Asked

### How Do I Know If an Exhaust Manifold Fits My 6.7 Cummins?
Match the manifold's part number and design to your engine’s year and model. Double-check that bolt patterns and connections align perfectly, since even slight differences might cause leaks or fitting issues during installation.

### What Maintenance Is Required for a 6.7 Cummins Exhaust Manifold?
Keep the manifold clean and check for cracks or warping regularly. Tighten bolts as needed; they can loosen over time due to heat cycles, causing exhaust leaks.

### Are There Common Problems with 6.7 Cummins Exhaust Manifolds to Watch For?
Cracking around the exhaust ports and gasket leaks are common problems to watch for. Heat stress causes the metal to warp or crack, which reduces engine performance and causes noise.

### How Long Does a 6.7 Cummins Exhaust Manifold Typically Last?
The manifold usually lasts several years under normal use but may fail sooner if exposed to extreme heat or poor maintenance. Regular inspection helps catch issues early and extends service life.

### Is It Safe to Install a Used Exhaust Manifold on a 6.7 Cummins?
Installing a used manifold can be risky unless it’s inspected carefully for cracks and warping. Used parts might hide damage that’s not obvious at first glance but can lead to exhaust leaks or engine problems.

## Conclusion
Choosing the right exhaust manifold for a 6.7 Cummins depends mainly on fit, durability, and how well it handles heat. You want something that fits your engine bay without needing major modifications, can withstand high temperatures without cracking, and improves exhaust flow to keep the engine running efficiently.

Make sure to consider your specific setup, budget, and how often you plan to use your truck when making a decision. Review the comparison table and detailed picks above to match these points with what fits your needs best before making a final choice.