2004 GMC Sierra 2500 HD Exhaust Parts

Essential 2004 GMC Sierra 2500 HD Exhaust Parts

Walker – Tail Pipe Aluminized 69.25" (Part No.56267)

Tail Pipe Aluminized 69.25"

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$237.99
Made from aluminized steel for durability, Walker® premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:
  • RESISTS CORROSION — Durable aluminized steel construction for corrosion resistance and performance
  • EASY TO INSTALL — Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
  • OE-STYLE PERFORMANCE — Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information
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Felpro – Exhaust Pipe Flange Gasket (Part No.61287)

Exhaust Pipe Flange Gasket

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$8.79
Fel-Pro gaskets offer 100% vehicle sealing with application-specific materials to give you sealing solutions with the performance and durability professionals trust

Product Features:
  • Meets or exceeds all original equipment specifications
  • Application specific design to ensure a perfect fit
  • Engineered for the sealing repair environment
  • Unsurpassed quality you can trust
  • Validated for fit, form, and function
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MagnaFlow – California Grade CARB Compliant Universal Catalytic Converter (Part No.5451309)

California Grade CARB Compliant Universal Catalytic Converter

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$1173.99
Keep the check engine light off with MagnaFlow California Grade CARB Compliant Universal Catalytic Converter 5451309. The Universal design allows the part to fit a wide array of vehicles (cutting and welding required), and the stainless steel construction of this spun body catalytic converter is highly resistant to corrosion. The single laser fusion weld of the spun body greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This replacement part is designed to meet or exceed California Air Resource Board requirements, and has undergone additional testing to comply with CARB guidelines to allow for legal use in California and CARB restricted states, for the listed vehicles.

Product Features:
  • Expertly formulated catalyst blend maximizes efficiency, ensuring optimal emissions control to keep your check engine light off.
  • Compact, lightweight construction enables installation in confined areas, welding is required.
  • Your trusted source for CARB-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
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Walker – Exhaust 41974 Exhaust Pipe Connector (Part No.41974)

Exhaust 41974 Exhaust Pipe Connector

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$17.49
Marketing Description for EPIC - Complete your exhaust repair with Walker® connectors. Featuring a smooth, burr-free finish for proper fitment, Walker connectors are manufactured from durable and robust material for long service life.  

Product Features:
  • THE RIGHT CONNECTION — For connecting exhaust pipe and/or tubing 
  • SMOOTH FINISH — Burr-free construction for proper fitment 
  • QUALITY MATERIALS – Made from aluminized steel for durability and long life  
  • BETTER TOGETHER – Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade 
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Mr. Gasket – Black Oxide Header Bolts for Tight Spaces (Part No.918G)

Black Oxide Header Bolts for Tight Spaces

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$12.79
Black oxide finished carbon steel header bolts have a compact hex head and the flange is ideal for use where space is minimal – your typical header flange. Includes twelve (12) M8 – 1.25 x 25mm header bolts.

Product Features:
  • 12 per Package
  • Fits GM LS Series Engines
  • Black Oxide Finish Resists Corrosion
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Walker – Extension Pipe Aluminized 26.125" (Part No.53727)

Extension Pipe Aluminized 26.125"

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$57.99
Made from aluminized steel for durability, Walker® premium pipe is manufactured with precision benders and fixture checked to ensure a precise fit for quick and easy installation.

Product Features:
  • RESISTS CORROSION — Durable aluminized steel construction for corrosion resistance and performance
  • EASY TO INSTALL — Manufactured with precision bends and OE-style routings, hangers and connectors for easy installation (where applicable)
  • OE-STYLE PERFORMANCE — Direct-fit design is fixture checked to ensure a precise fit that performs like original equipment
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of lengths and diameters and features the appropriate Inlet Diameter (I.D.) – Outlet Diameter (O.D.) connection; see product specifications for more information
  • COMPATIBILITY — Ideal for weld or clamp installations
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Flowmaster Inc. – 50 Big Block Muffler – 3.00 Dual In / 3.50 Offset Out – Mild Sound (Part No.530513)

50 Big Block Muffler - 3.00 Dual In / 3.50 Offset Out - Mild Sound

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$278.99
The 50 Series Big Block muffler is made for more than just big cubic inch engine applications. Its large case size with internal tuning chamber provides mileage and power gains along with maximum sound control for a quiet interior tone, even under heavy loads. Well suited to heavy duty vehicles such as full size trucks, SUV’s, RVs, and tow vehicles. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Flowmaster Inc. – Super 40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound (Part No.953048)

Super 40 Series Muffler, 3in Offset Inlet 3in Offset Outlet, Non-Reversible, Aggressive Sound

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$133.99
The Super 40 features Flowmaster’s Delta Flow technology. It’s larger case profile provides the best of both worlds of performance and sound. The Super 40 has that deep powerful sound of the Original 40 series but with all the benefits of performance and low interior resonance from the Delta Flow technology. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Dorman – Exhaust Clamp (Part No.H8020683618DOR)

Exhaust Clamp

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$86.00
Exhaust Clamp

Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.5 (Part No.35337)

Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 2.5

from

$8.99
Complete your exhaust repair with an Exhaust Mate® U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS — Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER — Use Walker® accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
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Walker – Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 3.5 (Part No.35753)

Clamp U-Bolt Bolt Dia 0.375 Length Nut Type Hex Pipe Dia 3.5

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$6.29
Complete your exhaust repair with an Exhaust Mate® U-bolt clamp. Designed to ensure a tight, leak-resistant connection, Exhaust Mate hardware is manufactured from durable and robust material for long service life.

Product Features:
  • CONNECTS EXHAUST PARTS — Provides secure, leak-resistant connection
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality material for durability and long life
  • BETTER TOGETHER — Use Walker® accessories when installing catalytic converters and mufflers for a complete exhaust system upgrade
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Dorman – Exhaust Manifold Clamp Repair (Part No.917-142)

Exhaust Manifold Clamp Repair

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$47.99
This exhaust manifold to cylinder head repair clamp is designed to match the fit and function of the original clamp on specified vehicles, and is engineered for durability and reliable performance.

Product Features:
  • Saves time – When an exhaust manifold fastener breaks, this exhaust manifold repair clamp saves time by creating a seal without needing to extract the broken stud
  • Location-specific – engineered to fit the exhaust manifold on the front left or rear right on specified GM and Isuzu vehicles
  • Complete kit – includes clamp and fasteners for a thorough, secure repair
  • Trustworthy quality – backed by a team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413B)

Exhaust Manifold Hardware Kit

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$17.99
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:
  • 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
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Remflex – Flexible Graphite, Set Of 2 (Part No.2008)

Flexible Graphite, Set Of 2

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$31.99
Remflex unique flexible graphite material has been proven for more than 30 years in industrial applications, where temperatures routinely exceed 2,000 degrees – day after day, week after week, year after year. Now, they are bringing this technology to enthusiasts of all kinds to eliminate exhaust leaks for good Whether you have an old pick-up that needs a manifold gasket, or a race car with custom-built headers, you can be assured that Remflex exhaust gaskets will work properly the first time, every time.

Product Features:
  • 100 Percent Flexible Graphite Construction
  • Designed To Withstand Clamping Force And Incredible Heat
  • Eliminate Exhaust Leaks
  • No Re-Torquing Necessary, Remflex Exhaust Gaskets Rebound 30 Percent, Creating An Optimum Seal That Eliminates The Need To Re-Torque
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Elring – Exhaust Manifold Gas (Part No.A8111353782ELR)

Exhaust Manifold Gas

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$25.75
Exhaust Manifold Gas

Walker – Ring Exhaust Pipe Flange Gasket: Fiber with Metal, Heat Resistant, Premium Materials (Part No.31610)

Ring Exhaust Pipe Flange Gasket: Fiber with Metal, Heat Resistant, Premium Materials

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$9.99
Complete your exhaust repair with Walker┬« gaskets and flanges. Available in a variety of styles and sizes, they’re designed to work with OE exhaust components and Walker aftermarket replacement parts.

Product Features:
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizesfora quality vehicle repair
  • HEAT RESISTANT — Designed to resist heat for long-lasting performance
  • PREMIUM MATERIALS — Made from high-quality materials for durability and long life
  • ENGINEERING EXPERTISE — Parts are reviewed and validated and approved by Walker engineers through rigorous research and development
  • REAL-WORLD TESTED — Parts are tested on-vehicle and validated to ensure optimal performance on the road
  • EASIER TO INSTALL — Featuring slotted bolt holes (where applicable) for easy installation, gasket slips into place
  • BETTER TOGETHER — Use premium Walker┬« accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-728)

Direct Fit Exhaust Manifold: With Heat Shield

from

$647.99
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:
  • 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
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Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-736)

Direct Fit Exhaust Manifold: With Heat Shield

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:
  • 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
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Dorman – Exhaust Bolt (Part No.H80151097742DOR)

Exhaust Bolt

from

$32.09
Exhaust Bolt

Walker – Exhaust 35229 Exhaust System Hanger Insulator (Part No.35229)

Exhaust 35229 Exhaust System Hanger Insulator

from

$7.79
Complete your exhaust repair with Walker® insulators. Available in a variety of styles and sizes, they’re designed to work with Walker aftermarket replacement parts for quick and easy installation.

Product Features:
  • OE DESIGN — Designed with OE-style features for easy installation and fit
  • PREMIUM MATERIALS — Made from high-quality materials for durability and long life
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • BETTER TOGETHER — Use premium Walker accessories when installing Walker catalytic converters and mufflers for a complete exhaust system upgrade
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MBRP Exhaust – Installer Series, 4 In Cat Back System: Polished Tip, Aluminized Steel, Designed for Power and Sound (Part No.S5093AL)

Installer Series, 4 In Cat Back System: Polished Tip, Aluminized Steel, Designed for Power and Sound

from

$553.99
Built to Perform MBRPs performance exhaust systems are built to perform. Designed to maximize exhaust flow and minimize exhaust temperatures your vehicle. Every system we sell has been built to the most exacting standards in the industry.

Product Features:
  • Aluminized Stainless Steel
  • Moderate Sound Level
  • 4 Inch Mandrel Bent Tubing
  • 4 Inch Cat Back Single Side Exit (Street Version) Exhaust System
  • Limited 3 Year Warranty
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Dynomax – Single – 4in Cat-Back Exhaust System – Ultra Flo Welded Muffler: Stainless Steel (Part No.39378)

Single - 4in Cat-Back Exhaust System - Ultra Flo Welded Muffler: Stainless Steel

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$588.99
DynoMax® Ultra Flo Welded performance stainless steel mufflers feature 100-percent welded construction for lifelong durability. The unrestricted, straight-through design dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower. Each muffler

Product Features:
  • Stainless steel construction for lifelong protection
  • 100% welded design for maximum durability
  • Straight through design ensures unrestricted exhaust flow and reduces back pressure
  • CRF Technology absorbs unwanted interior resonance while maintaining a deep performance tone
  • Dyno proven to flow up to 2,000 SCFM and support up to 2,000 horsepower.
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MBRP Exhaust – Aluminized Steel, 4"Dia Pipe, Single Exhaust With Side Exit, 5"Round Ss Tip (Part No.S6032AL)

Aluminized Steel, 4"Dia Pipe, Single Exhaust With Side Exit, 5"Round Ss Tip

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$374.99
Made of 100 Percent heavy Gauge aluminized steel our Installer Series is designed to provide the cost conscious consumer with the same high quality design and craftsmanship as our other systems, but at a value price. Installer Series is suitable for areas with moderate environmental conditions. A performance exhaust system is much like a musical instrument. Quality engineering is important, hundreds of test Miles and hundreds of Hours are invested into every system to guarantee you the greatest sound. Durability and performance available from any exhaust system anywhere, and also provided with the free exhaust tip with this Installer Series.

Product Features:
  • The Lowest Bend Degree Angles And Smooth Mandrel Bends Mean That Exhaust Gases Have An Easier Path To The Tip, Move Faster And Reduce Exhaust Gas Temperatures
  • Vehicle Maintains Optimal Operating Temperatures
  • Fits Right The First Time. Rigorous Testing Procedures Ensure That Every Component Will Fit As Expected
  • Each Kit Is Designed To Fit As Many Configurations Of The Same Vehicle As Possible
  • Made Of 100 Percent Heavy Gauge Aluminized Steel
  • Designed To Provide The Cost Conscious Consumer With The Same High Quality Design And Craftsmanship
  • Easy, Bolt-On Design, Makes Easy To Install
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aFe POWER – ATLAS DPF Back Exhaust System: No Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04040)

ATLAS DPF Back Exhaust System: No Tip, Aluminized Steel, Unleashes All Available HP

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$414.99
Interested in a new exhaust system? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5 in. mandrel-bent aluminized steel tubing. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGTs. Uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. ATLAS exhaust systems are the perfect combination of performance, fit and value. All aFe exhaust systems are engineered and manufactured in out Corona, California manufacturing facility.

Product Features:
  • 5 in. Aluminized Steel Tubing
  • Increased Flow And Performance
  • High Quality Band Clamps
  • Bayonet OE Style/Welded-On Hangers
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Dynomax – 36409 Exhaust System Hanger (Part No.36409)

36409 Exhaust System Hanger

from

$40.49
Complete your exhaust repair with DynoMax® exhaust system hangers. Designed with OE-style features (where applicable) to support undercar exhaust components, DynoMax exhaust system hangers are manufactured from durable and robust material for long service

Product Features:
  • KEEPS EXHAUST PARTS IN PLACE — Designed to support undercar exhaust components
  • OE DESIGN — Designed with OE-style features (where applicable) for easy installation
  • AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a quality vehicle repair
  • PREMIUM MATERIALS – Made from quality steel for durability and long life
  • BETTER TOGETHER — Use premium DynoMax® accessories when installing DynoMax mufflers and exhaust systems for a complete performance exhaust system upgrade
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Dorman – Help – Exhaust Flange Stud Kit – M10-1.5 x 62mm Stainless Steel (Part No.03133HP)

Exhaust Flange Stud Kit - M10-1.5 x 62mm Stainless Steel

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$26.99
This exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles. Made of quality materials, this hardware is engineered for reliable performance.

Product Features:
  • Upgraded hardware – this set of six M10-1.5 exhaust manifold mounting studs and nuts are 100 percent stainless steel for superior heat and corrosion resistance
  • Convenient solution – kit contains all the application-specific hardware necessary to join one exhaust manifold to one manifold flange
  • Matches fit – this hardware matches the fit and function of the factory fasteners, while offering superior durability
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
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Dorman – Help – Exhaust Stud Kit – M10-1.5 x 62mm (Part No.03133)

Exhaust Stud Kit - M10-1.5 x 62mm

from

$17.29
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.

Product Features:
  • Direct replacement for a proper fit every time
  • Durable steel construction
  • New hardware helps fix exhaust leaks
  • Also available in the Exhaust Manifold Hardware Kit
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2004 GMC Sierra 2500 HD Exhaust Parts

You count on your 2004 GMC Sierra 2500 HD to run right. That means taking care of it with regular maintenance, necessary repairs, and the right parts. Advance Auto Parts can help with all of that thanks to our extensive inventory of trusted Exhaust Parts. With 95 Exhaust Parts ranging in price from $6.49 to $1,176.99, you’re sure to find everything you need for your 2004 GMC Sierra 2500 HD.

Brands matter. If you want to shop a specific Exhaust Parts brand, we stock 16 different brands like Walker, Dorman, and Felpro. 2004 GMC Sierra 2500 HD Exhaust Parts start as low as $6.49!

One of the best ways to find top quality OEM or aftermarket Exhaust Parts is by asking professionals. Short of that, you can shop with confidence thanks to our 2,832 extensive product reviews on 2004 GMC Sierra 2500 HD Exhaust Parts. Some of the top-rated Exhaust Parts products we carry are Exhaust Stud Kit – M10-1.5 x 62mm with 4.7 stars and Direct Fit Exhaust Manifold: With Heat Shield with 4.8 stars.

Did we mention you can order your Exhaust Parts from our online catalog and have them shipped right to your garage? Or, if you feel like seeing the parts first-hand, search for your nearest Advance Auto Parts location above and pick up in-store when you’re ready. Browse our full Exhaust Parts inventory for your 2004 GMC Sierra 2500 HD below to get started!

Top-Rated Exhaust Parts Brands For Your 2004 GMC Sierra 2500 HD

Trusted Exhaust Parts OEM and aftermarket product brands are what Advance Auto Parts specializes in. The brands we work with are sure to keep that 2004 GMC Sierra 2500 HD running right for years to come. In our inventory you’ll find brands like Walker, Dorman, Felpro, and even more.

Popular Flowmaster Inc. Exhaust Parts

You’ll find popular Flowmaster Inc. brand products across Exhaust Mufflers. All are waiting to get your 2004 GMC Sierra 2500 HD back on the road. Some of the top-rated Flowmaster Inc. products in these categories are:

Top-Rated Walker Exhaust Parts


If Walker are what you’re looking for, our inventory holds plenty. We stock Walker brand Exhaust Parts for your 2004 GMC Sierra 2500 HD, and some of our most reviewed Walker parts include:
Exhaust 35229 Exhaust System Hanger Insulator
from $7.79
(31)
Exhaust 35229 Exhaust System Hanger Insulator
Exhaust System Insulators

FAQs for 2004 GMC Sierra 2500 HD Exhaust Parts

What are the most purchased Exhaust Parts for the 2004 GMC Sierra 2500 HD?

Out of 95 Exhaust Parts for the 2004 GMC Sierra 2500 HD, the most popular in our inventory are:
Exhaust Manifold Gasket Set
from $31.99
(37)
Exhaust Manifold Gasket Set
Exhaust Manifold Gaskets
Exhaust Manifold Hardware Kit
from $17.99
(17)
Exhaust Manifold Hardware Kit
Exhaust Manifold Hardware Kits
EXH MANIFOLD GKT SET
from $35.99
(11)
EXH MANIFOLD GKT SET
Exhaust Manifold Gaskets

What are the top-rated 2004 GMC Sierra 2500 HD Exhaust Parts?

Top-rated Exhaust Parts for your 2004 GMC Sierra 2500 HD based on customer reviews/ratings are:
Exhaust Stud Kit - M10-1.5 x 62mm
from $17.29
(19)
Exhaust Stud Kit – M10-1.5 x 62mm
“Item I needed at a great price. Thanks”
Direct Fit Exhaust Manifold: With Heat Shield
from $114.99
(16)
Direct Fit Exhaust Manifold: With Heat Shield
“Very pleased”
Exhaust Pipe Flange Gasket
from $6.49
(13)
Exhaust Pipe Flange Gasket
“Great product for the price”