2003 GMC Sierra 1500 HD Exhaust Parts
Find Your Specific 2003 GMC Sierra 1500 HD Exhaust Parts
Below you will find various in-demand GMC Exhaust Parts, components and accessories for your 2003 Sierra 1500 HD. Advance Auto Parts has popular Sierra 1500 HD parts like Exhaust Pipes, Exhaust Manifold and Headers, Exhaust Fittings and more. You’ll also find aftermarket and OEM Exhaust Parts for other Sierra 1500 HD model years including
2001,
2002,
2005,
2006,
2007 and more. Select a category of 2003 GMC Sierra 1500 HD Exhaust Parts below and start saving instantly.
Popular 2003 GMC Sierra 1500 HD Exhaust Parts Categories
Essential Exhaust Parts for 2003 GMC Sierra 1500 HDs
Flowmaster Inc. – 50 Series Muffler, 3.5in Offset Inlet 3.5in Offset Outlet, Non-Reversible, Moderate Sound (Part No.953558)
from
$247.99
Designed primarily for today’s heavy duty gas and diesel trucks, this muffler will deliver improved performance, throttle response and mileage. Featuring a deeper, moderate tone with minimal resonance, it is ideal for trucks with modified engines. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
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Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.22307)
from
$319.99
Designed to deliver superior flow and OE-style sound, Walker Quiet-Flow mufflers are available for top-selling domestic and foreign vehicles.
Product Features:
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Product Features:
- EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
- RESISTS CORROSION — Internal drainage system helps reduce moisture collection
- BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL — OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED — Acoustic and flow tested for quality OE-style sound you can count on
Walker – Exhaust Pipe Flange Gasket (Part No.31574)
from
$11.99
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:
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Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a 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
Walker – Exhaust Pipe Flange Gasket (Part No.31718)
from
$17.49
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:
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Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a 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
Walker – Exhaust System Hanger Insulator (Part No.35229)
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:
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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
BRExhaust – Exhaust Clamp (Part No.250-076)
from
$5.79
Sourcing mounting parts from the manufacturer that designs and makes the exhaust system is the only way to guarantee the perfect fit. That’s why, whilst developing the exhaust system, BRExhaust also develops the installation hardware to the same standards.
Product Features:
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Product Features:
- whilst developing the exhaust system
- BRExhaust also develops the installation hardware to the same standards.
Walker – Exhaust Clamp (Part No.35337)
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:
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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
Walker – Exhaust Tail Pipe 3" Inlet (OD) 2.75" Outlet (OD) (Part No.55656)
from
$79.99
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:
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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
Walker – Exhaust Pipe 2.75" Inlet (ID) 3" Outlet (OD) (Part No.54901)
from
$55.99
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:
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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
Dorman – Help – Exhaust Stud Kit – M10-1.5 x 62mm (Part No.03133)
from
$17.29
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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Product Features:
- Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles.
- Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
- Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Dorman – Help – Exhaust Flange Stud Kit – M10-1.5 x 62mm Stainless Steel (Part No.03133HP)
from
$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:
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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
Dorman – Exhaust Manifold Clamp Repair (Part No.917-107)
from
$51.99
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:
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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 specified GM and Isuzu vehicles on the front right on vehicles without EGR valve, or rear left.
- 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
Felpro – EXHAUST MANIFOLD BOLT SET (Part No.ES 75120)
from
$24.99
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:
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Product Features:
- Designed and manufactured to meet the needs of the exhaust system repair environment.
- Verified, tested and certified proprietary Organic coating resists corrosion.
- Tightly controlled coefficient of friction ensures reliable installation.
- Application specific kit contents
- Self-locking nuts (where applicable).
MagnaFlow – HM Grade Federal / EPA Compliant Direct-Fit Catalytic Converter (Part No.93622)
from
$546.99
Keep the check engine light off with MagnaFlow HM Grade Federal/EPA Compliant Direct-Fit Catalytic Converter 93622. With features including free-flowing mandrel-bent tubing and highly corrosion resistant stainless steel construction, easily install this spun body converter yourself using the proper tools, no cutting or welding required. MagnaFlow’s state-of-the-art metrology department uses the latest 3D scanning systems during research and development, so you can be confident that your new part will fit and function like the original equipment. By replicating the OE spun body design, the single laser fusion weld greatly reduces the possibility of a leak, and our compact, low-mass design also allows for greater thermal efficiency. This direct-fit catalytic converter is designed to fit the 2001-2006 Chevrolet Silverado 1500 HD, 2001-2002 Chevrolet Silverado 2500, and additional vehicles. The included gaskets & hardware reduce the possibility of a leaking seal while avoiding the need to reuse corroded factory parts for installation. This replacement part is designed to meet or exceed Federal emissions requirements set forth by the EPA, complying with legal standards for OBDII Federally registered vehicles with Federal/EPA Emission systems.
Product Features:
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Product Features:
- Expertly crafted to replicate OEM-like flow dynamics, maintaining factory performance and fuel efficiency.
- Simplifies installation with essential gaskets and hardware being included in the box.
- Your trusted source for EPA-compliant catalytic converters, providing assurance of genuine compliance while delivering quality that will last.
Walker – CalCat CARB Universal Catalytic Converter 3" Inlet (ID) 3" Outlet (ID) (Part No.81724)
from
$849.99
Designed, tested and validated for assured compliance to meet CARB standards, Walker CalCat Universal Catalytic Converters are available for OBDII (1996 and newer) and non-OBD (1995 and older) vehicles.
Product Features:
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Product Features:
- CARB COMPLIANT — For use on OBDII vehicles, 1996 and newer and non-OBD 1995 and older. Legal for sale in CA, CO, NY & other states requiring CARB-compliant replacement converters. Consult your state┐s aftermarket converter regulations.
- SUPERIOR TECHNOLOGY — Optimal high technology washcoat formulated to deliver superior performance (as compared to EPA-compliant converters)
- CONSISTENT PERFORMANCE — Utilizes a precise OE-style coating process to apply catalyst material to the substrate, providing consistent performance for assured emissions compliance
- DURABLE — Features stainless-steel body with aluminized pipe and heat shields for durability
- FLEXIBLE SOLUTION — Customizable design features expandable bushings for easy fitment and may require specialized fabrication and/or welding for installation
Mahle – Exh. Man. to Pipe Ga (Part No.H4003206101MAH)
from
$11.33
Exh. Man. to Pipe Ga
Mahle – Exhaust Pipe Gasket (Part No.H4006205963MAH)
from
$16.20
Exhaust Pipe Gasket
GM Genuine Parts – Exhaust Manifold Gasket (Part No.12617944)
from
$17.99
GM Genuine Parts Exhaust Manifold Gaskets are designed, engineered, and tested to rigorous standards, and are backed by General Motors. They help form a gas-tight connection between the exhaust manifold and cylinder heads. GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE).
Product Features:
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Product Features:
- Helps prevent exhaust leaks
- Helps provide a tight seal where the exhaust manifold mounts to the engine block
- Some GM Genuine Parts may have formerly appeared as ACDelco GM Original Equipment (OE)
- GM Genuine Parts are designed, engineered and tested to rigorous standards, and are backed by General Motors
- GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
- GM regularly updates production and service part designs to integrate new materials and technologies
Remflex – Flexible Graphite, Set Of 2 (Part No.2008)
from
$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:
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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
Dorman – Exhaust Bolt (Part No.H80151097742DOR)
from
$35.60
Exhaust Bolt
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413B)
from
$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:
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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 – Help – Exhaust Manifold Hardware Kit – M8-1.25 Stainless Steel (Part No.03413HP)
from
$28.99
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:
- Upgraded hardware – this set of twelve M8-1.25 x 30mm exhaust manifold mounting bolts are 100 percent stainless steel for superior heat and corrosion resistance.
- Convenient solution – kit contains all the application-specific hardware necessary to install one exhaust manifold
- 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
Mr. Gasket – Exhsthdrbolt (Part No.2235G)
from
$58.99
Headlock&trade: Bolts eliminate the need for lock washers, Period. That’s because each Headlock&trade: Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.
Product Features:
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Product Features:
- 12 per Package
- Includes Ball Head Socket Tool – to Start Header Bolt Into Head
- 410 stainless steel
- Minimum 180,000 PSI tensile strength
- 24 equally spaced clockwise teeth
Dorman – Exhaust Manifold Hardware Kit (Part No.675-226)
from
$22.49
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
Patriot Exhaust – H8057 1-5/8” Header Chevrolet Truck 4.8-6.0L 99-05 Raw (Part No.H8057)
from
$416.99
Don’t give up looking for headers for your vehicle. Patriot offers headersfor many applications at prices you can afford. Built with surfacemachined thick steel flanges for a great seal andmandrel bent mild steel tubing. Patriot headers areavailable r
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Product Features:
- Patriot Exhaust H8057 1-5/8” Header Chevrolet Truck 4.8-6.0L 99-05 Raw
- Patriot offers headers for many applications at prices you can afford.
Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-525)
from
$114.99
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:
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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
Flowtech – Shorty Smog Headers (Part No.91835FLT)
from
$415.99
Shorty Smog Headers
Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-732)
from
$162.99
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, 2 flange gaskets, 3 studs, 3 nuts.
- Direct fit – reverse engineered from original equipment for seamless installation
- Quality engineering – designed and tested in the United States
Upgrade your 2003 GMC Sierra 1500 HD with Top-Quality Exhaust Parts
When it comes to maintaining or upgrading your 2003 GMC Sierra 1500 HD, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your GMC or enhancing its overall performance, Exhaust Parts are key to keeping your Sierra 1500 HD functioning at its best. At Advance Auto Parts, we offer a wide selection of 54 Exhaust Parts for the 2003 GMC Sierra 1500 HD, designed to meet your needs without breaking the bank.
From
Exhaust Pipe
replacements to
Exhaust Manifold and Headers
upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.
Affordable Prices and Wide Selection
Shopping for Exhaust Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Exhaust Parts for your 2003 GMC Sierra 1500 HD at great prices.
Our Exhaust Parts inventory for this model
ranges from just $5.79 to $1,151.99, with
an average price of $159.11.
Our 54 Exhaust Parts in stock come from 14 trusted brands, so you’re sure to find the right part for your 2003 GMC Sierra 1500 HD without overspending.
Top Brands and High Customer Satisfaction
Advance Auto Parts takes pride in offering only the best brands in the automotive industry. For your 2003 GMC Sierra 1500 HD, we stock popular OEM and aftermarket Exhaust Parts from top names
like FELPRO, Walker, Dorman, and more.
FELPRO Exhaust Parts
start at just $6.49 and boast an impressive 5 stars average rating from customers.
Walker and Dorman also bring quality to the table, with Exhaust Parts available starting at $7.79, and at an average 4 stars rating.
With 502 customer reviews and counting, our 2003 GMC Sierra 1500 HD Exhaust Parts have a strong track record of reliability, ensuring you can trust your purchase.
Explore Related Parts and More
While you’re here, don’t forget to check out other essential categories that go hand in hand with Exhaust Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants
and more to make sure your 2003 GMC Sierra 1500 HD is always ready to roll. We’re committed to providing you with everything you need to keep your Sierra 1500 HD in top shape, all in one place.
Start shopping confidently below for your 2003 GMC Sierra 1500 HD!
Best-Selling Exhaust Pipes for 2003 GMC Sierra 1500 HDs
Enhance the driving experience in your GMC with 7 quality Exhaust Pipe components, starting at $6.49.
Walker – Exhaust Pipe Flange Gasket (Part No.31718)
from
$17.49
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:
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Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a 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
Felpro – Exhaust Pipe Flange Gasket (Part No.61323)
from
$6.49
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:
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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
Walker – Exhaust Pipe Flange Gasket (Part No.31574)
from
$11.99
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:
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Product Features:
- AVAILABLE IN DIFFERENT SIZES — Offered in a variety of styles and sizes for a 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
Felpro – Exhaust Pipe Flange Gasket (Part No.61287)
from
$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:
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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
Walker – Exhaust Pipe (Part No.55334)
from
$144.99
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:
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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
Walker – Exhaust Tail Pipe 3" Inlet (OD) 2.75" Outlet (OD) (Part No.55656)
from
$79.99
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:
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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
Walker – Exhaust Pipe 2.75" Inlet (ID) 3" Outlet (OD) (Part No.54901)
from
$55.99
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:
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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
Most Popular 2003 GMC Sierra 1500 HD Exhaust Manifold and Headers
Customize your GMC with 8 Exhaust Manifold and Headers products
like Exhaust Manifold and Headers,
Exhaust Manifold and Header Hardware, and
Exhaust Manifold Bolts, all
priced under $162.99.
Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-522)
from
$114.99
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 – Help – Exhaust Manifold Hardware Kit (Part No.03413B)
from
$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:
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
Dorman – Direct Fit Exhaust Manifold: With Heat Shield (Part No.674-732)
from
$162.99
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, 2 flange gaskets, 3 studs, 3 nuts.
- Direct fit – reverse engineered from original equipment for seamless installation
- Quality engineering – designed and tested in the United States
Mr. Gasket – Black Oxide Header Bolts for Tight Spaces (Part No.918G)
from
$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:
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Product Features:
- 12 per Package
- Fits GM LS Series Engines
- Black Oxide Finish Resists Corrosion
Dorman – Exhaust Bolt (Part No.H80151097742DOR)
from
$35.60
Exhaust Bolt
Mr. Gasket – Exhsthdrbolt (Part No.2235G)
from
$58.99
Headlock&trade: Bolts eliminate the need for lock washers, Period. That’s because each Headlock&trade: Bolt features 24 equally-spaced, stainless steel teeth serrations that bite into and hold onto the attaching surface-eliminating the need for lock-washers.
Product Features:
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Product Features:
- 12 per Package
- Includes Ball Head Socket Tool – to Start Header Bolt Into Head
- 410 stainless steel
- Minimum 180,000 PSI tensile strength
- 24 equally spaced clockwise teeth
Dorman – Help – Exhaust Manifold Hardware Kit – M8-1.25 Stainless Steel (Part No.03413HP)
from
$28.99
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:
- Upgraded hardware – this set of twelve M8-1.25 x 30mm exhaust manifold mounting bolts are 100 percent stainless steel for superior heat and corrosion resistance.
- Convenient solution – kit contains all the application-specific hardware necessary to install one exhaust manifold
- 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
Dorman – Exhaust Manifold Hardware Kit (Part No.675-226)
from
$22.49
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
Top Picks for 2003 GMC Sierra 1500 HD Exhaust Fittings
Upgrade GMC Sierra 1500 HDs with top-quality Exhaust Fittings parts, including 3 OEM and aftermarket selections for your 2003 model.
Walker – Exhaust Clamp (Part No.35794)
from
$10.29
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:
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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
Walker – Exhaust Clamp (Part No.35337)
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:
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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
BRExhaust – Exhaust Clamp (Part No.250-076)
from
$5.79
Sourcing mounting parts from the manufacturer that designs and makes the exhaust system is the only way to guarantee the perfect fit. That’s why, whilst developing the exhaust system, BRExhaust also develops the installation hardware to the same standards.
Product Features:
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Product Features:
- whilst developing the exhaust system
- BRExhaust also develops the installation hardware to the same standards.
In-Demand Exhaust Mufflers for 2003 GMC Sierra 1500 HDs
Select from 2 premium Exhaust Mufflers parts for your 2003 GMC Sierra 1500 HD, with prices ranging from $259.99 to $319.99.
Dynomax – Super Turbo Muffler: Universal Fit Aluminized Steel, 16" L, 3" In, 3" Out, Oval (Part No.17673)
from
$259.99
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 uses our exclusive Continuous Roving Fiberglass (CRF) Technology to absorb unwanted interior resonance while maintaining a deep performance tone.
Product Features:
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Product Features:
- Large internal flow tubes improve exhaust flow and reduce backpressure
- Exclusive patented flow director design channels exhaust flow and eliminates turbulence on most applications.
- Fiberglass matting technology to absorb unwanted interior resonance while maintaining a mellow performance tone
- Dyno proven to flow up to 700 SCFM
Walker – Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed (Part No.22307)
from
$319.99
Designed to deliver superior flow and OE-style sound, Walker Quiet-Flow mufflers are available for top-selling domestic and foreign vehicles.
Product Features:
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Product Features:
- EASY TO INSTALL — Direct-fit bolt-on replacement solution with OE-style hangers, brackets and pipe routings for easy installation and doesn’t require specialized fabrication and/or welding
- RESISTS CORROSION — Internal drainage system helps reduce moisture collection
- BUILT TO LAST — Internal partitions and mechanically joined tubes allow expansion and contraction during temperature changes to minimize distortion while spun-locked heads and OE-style spot welds provide stability and longer service life
- PREMIUM ACOUSTIC CONTROL — OE-style louvered tubes lower noise levels while OE-style domed heads help reduce radiated noise for premium factory-style sound quality compared to straight perforated tubes
- DESIGN VALIDATED — Acoustic and flow tested for quality OE-style sound you can count on
Most Sold 2003 GMC Sierra 1500 HD Exhaust Hangers
Explore our best-selling GMC parts for the 2003 Sierra 1500 HD among 3 OEM and aftermarket options starting from $7.79.
Walker – Exhaust System Hanger Insulator (Part No.35229)
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:
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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
Dorman – Help – Exhaust Stud Kit – M10-1.5 x 62mm (Part No.03133)
from
$17.29
Our exhaust manifold flange kit includes all necessary studs and nuts for a complete repair.
Product Features:
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Product Features:
- Direct replacement – this exhaust flange stud and nut are designed to match the fit and function of the original hardware on specified vehicles.
- Ideal solution – this stud and nut are reliable replacements for original parts that are missing or have failed due to wear
- Durable construction – these parts are made from quality materials to ensure reliable performance and long service life
- Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
Dorman – Help – Exhaust Flange Stud Kit – M10-1.5 x 62mm Stainless Steel (Part No.03133HP)
from
$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:
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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
Top-Rated Exhaust Parts Brands For Your 2003 GMC Sierra 1500 HD
Shop for the best-rated brands offering Exhaust Parts and other products for your 2003 GMC Sierra 1500 HDs. Below you’ll find some of our best rated Exhaust Parts from FELPRO, Walker, and Dorman, and more. Exhaust Parts from these brands that fit a 2003 Sierra 1500 HD start at just $6.49 and are rated as high as 5 stars. OEM and aftermarket Exhaust Parts don’t get more top quality, durable, and affordable than from the brands below.
Popular FELPRO 2003 GMC Sierra 1500 HD Exhaust Parts
When it comes to maintaining or upgrading your 2003 GMC Sierra 1500 HD, using quality Exhaust Parts is essential to ensure durability and a perfect fit. FELPRO ticks all of those boxes. We offer a wide selection of FELPRO Exhaust Parts, specifically designed for the 2003 GMC Sierra 1500 HD. With over 6 FELPRO brand Exhaust Parts in stock, you’re sure to find what you need. The prices for these top-notch parts start as low as $6.49, with an average price of just $17.12. Plus, with over 51 customer reviews and an average rating of 5 stars, you can trust that our FELPRO Exhaust Parts will get the job done right. Choose Advance Auto Parts for reliability, quality, and expert-approved parts that keep your vehicle running strong.
Popular Walker 2003 GMC Sierra 1500 HD Exhaust Parts
Walker auto parts is one of the highest quality Exhaust Part brands in the market. Any 2003 GMC Sierra 1500 HD owner should feel confident when installing genuine Walker parts in their vehicle. To ensure the best fit and performance for your 2003 Sierra 1500 HD, Advance Auto Parts carries a full inventory of 13 Walker Exhaust Parts. Plus you will be keeping your GMC in peak condition while saving money because prices on these Walker Exhaust Parts range from $7.79 to $849.99, plus, with more than 81 customer reviews and an impressive 4 stars average rating, you can be confident the Fram Exhaust Parts below will deliver on both quality and value.
from
$319.99
$319.99
This product is not rated
Quiet-Flow Muffler, Direct Replacement, No Fabrication Needed
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FAQs for 2003 GMC Sierra 1500 HD Exhaust Parts
Which Exhaust Parts are best-sellers for 2003 GMC Sierra 1500 HDs?
Out of 54 Exhaust Parts that fit 2003 GMC Sierra 1500 HDs, the following parts are the top sellers:
- Exhaust System Hanger Insulator (18370344) – $7.79
- Exhaust Manifold Gasket Set (15780316) – $31.99
- Exhaust Clamp (10083053) – $10.29
What’s the price range for 2003 GMC Sierra 1500 HD Exhaust Parts?
Exhaust Part prices for the 2003 GMC Sierra 1500 HD start at $5.79 and go up to $1,151.99 for the most premium parts.
What’s the average price of a Exhaust Part for a 2003 GMC Sierra 1500 HD?
The average price for Exhaust Parts for the 2003 GMC Sierra 1500 HD is $159.11. Keep in mind the variety of part types within our Exhaust Part category so you are likely to find a wide range of prices across a variety of parts and components.
Does Advance Auto Parts sell Exhaust Parts for other GMC Sierra 1500 HD model years?
What are the cheapest Exhaust Parts for my 2003 GMC Sierra 1500 HD?
The cheapest 2003 GMC Sierra 1500 HD Exhaust Parts we carry in stock are:
- Exhaust Clamp (50169834) – $5.79
- Exhaust Pipe Flange Gasket (20688659) – $6.49
- Exhaust System Hanger Insulator (18370344) – $7.79
- Exhaust Pipe Flange Gasket (20688143) – $8.79
- Exhaust Clamp (11012146) – $8.99
What are the top-rated Exhaust Parts that fit the 2003 GMC Sierra 1500 HD?
Out of 502 reviews by customers, our 2003 GMC Sierra 1500 HD Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 2003 GMC Sierra 1500 HD and their top-rated products:
- Exhaust Fittings
- Exhaust Clamp (10083053) – $10.29
- Exhaust Mufflers
- Exhaust Clamp (10083053) – $10.29
- Exhaust Gaskets
- Exhaust Clamp (10083053) – $10.29
What types of Exhaust Parts do you sell for my 2003 GMC Sierra 1500 HD?
As of 2/5/25, these are some of the most in-demand types of Exhaust Parts for a 2003 GMC Sierra 1500 HD:
Can I get help with 2003 GMC Sierra 1500 HD Exhaust Part orders?
Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about GMC Exhaust Parts and more.
What is your return policy for GMC Sierra 1500 HD Exhaust Parts?
Advance Auto Parts keeps returns simple. For new GMC Sierra 1500 HD Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
