2003 GMC W3500 Forward Exhaust Manifold and Headers
Keep Your 2003 GMC W3500 Forward in Top Shape with Quality Exhaust Manifold and Headers
Whether you’re repairing or upgrading your Exhaust Manifold and Header, using high-quality parts is key to keeping your 2003 GMC W3500 Forward looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Exhaust Manifold and Headers and Exhaust Manifold and Header Hardware. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.
Competitive Prices and Extensive Inventory
The average price for a 2003 GMC W3500 Forward Exhaust Manifold and Header at Advance Auto Parts is around $139.32, with a range that starts at $21.99 and goes up to $249.99. With 3 options in stock from one trusted brand, finding the right fit is easy. Popular picks like Exhaust Manifold Kit – Includes Required Gaskets and Hardware (OE Fix) and Direct Fit Exhaust Manifold: without Heat Shield start at just $145.99 and offer a great balance of form and function.
Find Your Specific 2003 GMC W3500 Forward Exhaust Manifold and Headers
Looking for the perfect Exhaust Manifold and Header for your 2003 GMC W3500 Forward? You’re in the right place. Below, you’ll find links to various types of Exhaust Manifold and Headers that fit your vehicle. At Advance Auto Parts, we offer only the highest quality OEM and aftermarket Exhaust Manifold and Headers, ensuring durability and a precise fit for your GMC W3500 Forward. Whether you’re driving a 2003 model or another popular model year like
1998,
1999,
2000,
2001,
2002,
2004,
2005,
2006, and
2007, we’ve got you covered. Purchasing Exhaust Manifold and Headers from Advance Auto Parts is a smart choice, giving you access to trusted brands and parts built to perform. Below, you’ll find links to various types of Exhaust Manifold and Headers that fit your vehicle.
Essential 2003 GMC W3500 Forward Exhaust Manifold and Headers
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03412B)
from
$21.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.
Product Features:
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Product Features:
- Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
- Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
- Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Dorman – Direct Fit Exhaust Manifold: with Heat Shield (Part No.674-859)
from
$208.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.
Product Features:
See More
Product Features:
- Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
- Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
- Complete repair – includes all necessary gaskets and downpipe hardware
- Trustworthy design – built by industry leader in aftermarket manifolds
Dorman – HD Solutions – Direct Fit Exhaust Manifold: with Heat Shield (Part No.674-5602)
from
$343.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.
Product Features:
See More
Product Features:
- Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
- Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
- Complete repair – includes all necessary gaskets and downpipe hardware
- Trustworthy design – built by industry leader in aftermarket manifolds
Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-250)
from
$151.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.
Product Features:
See More
Product Features:
- Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
- Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
- Complete repair – includes all necessary gaskets and downpipe hardware
- Trustworthy design – built by industry leader in aftermarket manifolds
Dorman – Exhaust Manifold Kit – Includes Required Gaskets and Hardware (OE Fix) (Part No.674-446)
from
$145.99
Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.
Product Features:
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Product Features:
- Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
- Complete kit – includes new manifold, manifold gasket, flange gasket, 3 studs, 3 nuts
- Direct fit – reverse engineered from original equipment for seamless installation
- Quality engineering – designed and tested in the United States
Dorman – HD Solutions – Direct Fit Exhaust Manifold: with Heat Shield (Part No.674-5603)
from
$310.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.
Product Features:
See More
Product Features:
- Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
- Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
- Complete repair – includes all necessary gaskets and downpipe hardware
- Trustworthy design – built by industry leader in aftermarket manifolds
Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-860)
from
$249.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.
Product Features:
See More
Product Features:
- Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
- Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
- Complete repair – includes all necessary gaskets and downpipe hardware
- Trustworthy design – built by industry leader in aftermarket manifolds
Popular 2003 GMC W3500 Forward Exhaust Manifold and Headers Categories
Most Popular Exhaust Manifold and Headers for 2003 GMC W3500 Forwards
Enhance your 2003 GMC W3500 Forward with one of the 2 Exhaust Manifold and Headers we have in stock, starting at just $145.99.
Dorman – Exhaust Manifold Kit – Includes Required Gaskets and Hardware (OE Fix) (Part No.674-446)
from
$145.99
Certain original equipment exhaust manifolds warp and crack due to lower-grade iron construction. This Dorman OE FIX replacement is made of high-grade ductile iron that better handles heat and stress for greater durability.
Product Features:
See More
Product Features:
- Upgraded materials – this replacement exhaust manifold is constructed of ductile iron to prevent future warping and cracking
- Complete kit – includes new manifold, manifold gasket, flange gasket, 3 studs, 3 nuts
- Direct fit – reverse engineered from original equipment for seamless installation
- Quality engineering – designed and tested in the United States
Dorman – Direct Fit Exhaust Manifold: without Heat Shield (Part No.674-860)
from
$249.99
This exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the original manifold on specified vehicles. It includes all necessary gaskets and downpipe hardware for a complete repair.
Product Features:
See More
Product Features:
- Ideal replacement – this exhaust manifold was precision-engineered and durably manufactured to match the fit and function of the stock manifold on specified vehicles
- Reliable construction – durable materials resist warping, cracking and leaking for long-lasting performance
- Complete repair – includes all necessary gaskets and downpipe hardware
- Trustworthy design – built by industry leader in aftermarket manifolds
Best-Selling 2003 GMC W3500 Forward Exhaust Manifold and Header Hardware
Upgrade your W3500 Forward with our best-selling Exhaust Manifold and Header Hardware with a 2 Starts rating across 7 reviews.
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03412B)
from
$21.99
This exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles, and is made from quality materials for reliable performance.
Product Features:
See More
Product Features:
- Direct replacement – this exhaust manifold hardware kit matches the original hardware required to secure the exhaust manifold to the engine on specified vehicles
- Ideal solution – this kit is a reliable replacement for the original hardware that is missing or damaged, or has failed
- Durable construction – this kit is made from quality components to ensure reliable performance and a long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
FAQs for 2003 GMC W3500 Forward Exhaust Manifold and Headers
What are the best-selling Exhaust Manifold and Headers for 2003 GMC W3500 Forwards?
Out of 3 Exhaust Manifold and Headers that fit 2003 GMC W3500 Forwards, the following parts are the top sellers:
- Exhaust Manifold Kit – Includes Required Gaskets and Hardware (OE Fix) (19790242) – $145.99
- Direct Fit Exhaust Manifold: without Heat Shield (10242309) – $249.99
What’s the price range for 2003 GMC W3500 Forward Exhaust Manifold and Headers?
The prices of Exhaust Manifold and Headers for the 2003 GMC W3500 Forward range from $21.99 up to $249.99 for the most premium parts.
What is the average price of an Exhaust Manifold and Header for a 2003 GMC W3500 Forward?
The average price for Exhaust Manifold and Headers for the 2003 GMC W3500 Forward is $139.32. Keep in mind the variety of part types within our Exhaust Manifold and Header category, where you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Exhaust Manifold and Headers for other GMC W3500 Forward model years?
What are the cheapest Exhaust Manifold and Headers for my 2003 GMC W3500 Forward?
The cheapest 2003 GMC W3500 Forward Exhaust Manifold and Headers we carry are:
- Exhaust Manifold Hardware Kit (10242308) – $21.99
- Exhaust Manifold Kit – Includes Required Gaskets and Hardware (OE Fix) (19790242) – $145.99
- Direct Fit Exhaust Manifold: without Heat Shield (10242309) – $249.99
Does Advance Auto Parts sell Exhaust Manifold and Headers for any other 2003 GMC models?
Yes. We stock Exhaust Manifold and Headers for 18 other popular 2003 GMC models. Some of the most popular are 2003 Yukon Exhaust Manifold and Headers, 2003 Sierra 1500 Exhaust Manifold and Headers, 2003 Yukon XL 1500 Exhaust Manifold and Headers, 2003 Sierra 2500 HD Exhaust Manifold and Headers, and 2003 Yukon XL 2500 Exhaust Manifold and Headers.
What are the top-rated Exhaust Manifold and Headers that fit the 2003 GMC W3500 Forward?
The one 2003 GMC W3500 Forward Exhaust Manifold and Header we have in stock is the Exhaust Manifold Hardware Kit. It is rated 2 stars and costs $21.99.
What types of Exhaust Manifold and Headers do you sell for my 2003 GMC W3500 Forward?
As of 11/2/25, these are some of the most in-demand types of Exhaust Manifold and Headers for a 2003 GMC W3500 Forward:
Can I get help with 2003 GMC W3500 Forward Exhaust Manifold and Header orders?
Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about GMC Exhaust Manifold and Headers and more.
What is your return policy for GMC W3500 Forward Exhaust Manifold and Headers?
Advance Auto Parts keeps returns simple. For new GMC W3500 Forward Exhaust Manifold and Headers and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.