2021 GMC Sierra 3500 HD Exhaust Parts
Find Your Specific 2021 GMC Sierra 3500 HD Exhaust Parts
Below you will find various in-demand GMC Exhaust Parts, components and accessories for your 2021 Sierra 3500 HD. Advance Auto Parts has popular Sierra 3500 HD parts like Catalytic Converters, Exhaust Manifold and Headers, Exhaust Mufflers and more. You’ll also find aftermarket and OEM Exhaust Parts for other Sierra 3500 HD model years including
2013,
2014,
2015,
2016,
2017,
2018,
2019,
2020,
2022 and more. Select a category of 2021 GMC Sierra 3500 HD Exhaust Parts below and start saving instantly.
Popular 2021 GMC Sierra 3500 HD Exhaust Parts Categories
Essential Exhaust Parts for 2021 GMC Sierra 3500 HDs
Dorman – Exhaust Manifold Clamp Repair (Part No.917-142)
from
$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:
See More
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
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413)
from
$15.99
Our Exhaust Manifold Hardware Kit comes with the necessary installation components to assist you in replacing your manifold. Save time and energy by having the right hardware on hand when you need it.
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 – Exhaust Manifold Repair Clamp (Part No.917-108)
from
$31.99
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:
See More
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 center on specified GM and Hummer 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
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:
See More
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).
MBRP Exhaust – Aluminized Steel, With Muffler, 4" Pipe Diameter, Single Exhaust With Single Ext (Part No.S6004P)
from
$524.99
Designed to provide maximum performance and maximum value our Performance Series features 100 Percent aluminized steel at a no nonsense price. These systems are designed to provide the MBRP performance and sound you have grown to love to those who are operating on a tight budget. Featuring a two piece tail pipe and bolt-on hangers these systems fit and perform just like our more expensive series at a price point that cannot be beaten. 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.
Product Features:
See More
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
- 100 Percent Aluminized Steel
- Features A Two Piece Tail Pipe And Bolt-On Hangers
- Easy, Bolt-On Design, Makes Easy To Install
aFe POWER – Large Bore-HD DPF Back Exhaust System: Polished Tip, 409 Stainless Steel, Unleashes All Avail. HP (Part No.49-44040-P)
from
$755.99
Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style flange and band clamps are used for a complete 360 deg. sealing surface. A free flowing 24 in. long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig. OE style bayonet hangers are used to maintain a stable pipe locations during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.
Product Features:
See More
Product Features:
- 5 in. 409 Stainless Steel Tubing
- 7 in. Polished Tips w/Laser Cut Age Badge
- Increased Flow And Performance
- High Quality Band Clamps
aFe POWER – ATLAS DPF Back Exhaust System: Black Tip, Aluminized Steel, Unleashes All Available HP (Part No.49-04081-B)
from
$755.99
Interested in a new exhaust system for your LML Duramax? Check out the ATLAS DPF-Back exhaust system by aFe. This system is constructed from 5″ mandrel-bent aluminized steel tubing and uses high quality band clamps and OE-style bayonet hangers. This unit uses all factory mounting locations to provide a quick, hassle-free installation. Also included in this exhaust system is a massive 6″ diameter, wrinkle-black powder-coated 304 stainless steel tip with a laser-cut stainless steel aFe power badge. ATLAS exhaust systems are the perfect combination of performance, fit and value. Simple Installation: All systems use factory mounting locations providing stability and hassle-free installation. Leak-Free Seal: High quality band clamps are included for a complete 360 degree sealing surface. OE Fit: OE-style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE-style fit that does not change with time. Flow and Performance: This ATLAS exhaust system is constructed of 5″ mandrel-bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s. 6″ Diameter Black Intercooled Tip: Finishing off the exhaust is a 6″ diameter, black, stainless steel slash cut tip with intercooling vents designed to reduce exhaust gas temperatures at the tailpipe. A unique stainless steel laser-cut aFe Power logo plate is riveted on for an aggressive style.
Product Features:
See More
Product Features:
- Mandrel Bent Tubing For Maximum Flow
- Utilizes Factory Mounting Locations
- Quick Hassle Free Installation
- Massive Intercooled Tip w/Laser Cut aFe Power Badge
aFe POWER – Large Bore-HD DPF Back Exhaust System: No Tip, 409 Stainless Steel, Unleashes All Available HP (Part No.49-44041)
from
$682.99
Engineered to perform in the most extreme environments. Constructed from mandrel bent 4 in. 409 stainless steel tubing for maximum flow; increased horsepower; increased torque and lower EGTS. All systems use factory mounting locations providing stability and hassle free installation. High quality OE style flange and band clamps are used for a complete 360 deg. sealing surface. A free flowing 24 in. long muffler is used to absorb high pitch tones producing a powerful sound and unleashing all available horsepower and torque out of your rig. OE style bayonet hangers are used to maintain a stable pipe locations during high vibration and high heat conditions. The bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.
Product Features:
See More
Product Features:
- 5 in. 409 Stainless Steel Tubing
- Increased Flow And Performance
- High Quality Band Clamps
- Bayonet OE Style/Welded-On Hangers
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
Mahle – Exhaust Seal Ring (Part No.H4002206261MAH)
from
$14.44
Exhaust Seal Ring
ARP Auto Racing – For Use With Chevy Ls V8 Engine, M8 Thread Size, Hex Head, Black Oxide, Set Of 12 (Part No.134-1102)
from
$40.99
ARP manufactures a variety of premium grade bolt and stud kits to facilitate installation of exhaust headers including the popular stainless stud kit with 12 point nuts. The Stainless 300 material is not affected by corrosion or extreme heat, making it ideal for the application.
Product Features:
See More
Product Features:
- Material Is Not Affected By Corrosion Or Extreme Heat
- The Compact 12-Point Nut Lets You Easily Slip A Socket Close To The Pipe
- Substantially Stronger Than Grade 8 Hardware
- Nominally Rated At 170,000 PSI Tensile Strength
- Set of 12
- 3/8” Wide Header Flange
- 1.181? Underhead Length
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:
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 – 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
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:
See More
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:
See More
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 – 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:
See More
Product Features:
- 12 per Package
- Fits GM LS Series Engines
- Black Oxide Finish Resists Corrosion
Felpro – Exhaust Pipe Flange Gasket (Part No.61457)
from
$13.49
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:
See More
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
Felpro – EXHAUST FLANGE GASKET (Part No.61694)
from
$19.99
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:
See More
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
Dorman – HD Solutions – Exhaust Pipe Flange Gasket Kit (Part No.674-9060)
from
$35.99
Damaged exhaust gaskets causing an exhaust leak? This exhaust flange gasket seals the exhaust system where two components are joined by a flange. This direct-replacement gasket matches the original design for a perfect fit.
Product Features:
See More
Product Features:
- Direct replacement – this exhaust flange gasket matches the original gasket for a perfect fit.
- Complete repair solution – this flange gasket should be replaced any time service is performed on any of the related exhaust components
- Excellent value – original equipment quality at a competitive price
- Quality tested – This gasket has undergone material testing to meet product standards and quality
MAHLE Original – Exhaust Pipe Gasket (Part No.F31903)
from
$8.99
MAHLE® gaskets provide world class sealing products trusted by OEMs & Technicians around the globe.
Product Features:
See More
Product Features:
- All MAHLE gaskets meet or exceed the original equipment specifications providing the finest sealing products available
- MAHLE gaskets utilizes OE equivalent or better materials in all our gaskets
- Exhaust pipe gaskets from MAHLE Original are manufactured with the best materials to withstand high temperature applications.
- The contents of MAHLE gaskets are packaged in shrink wrapped tray, giving you the added security of knowing that you have the right parts, prior to opening the package
Mahle – Exh. Pipe to Man. Ga (Part No.H4003557587MAH)
from
$22.03
Exh. Pipe to Man. Ga
Victor Reinz – Exhaust Pipe Flange Gasket (Part No.71-13629-00)
from
$16.79
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
Product Features:
See More
Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
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:
See More
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.31591)
from
$20.99
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:
See More
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
Victor Reinz – Exhaust Pipe Flange Gasket (Part No.71-14476-00)
from
$17.49
With Victor Reinz gaskets, you can be sure you are getting sealing solutions that deliver OE quality gasket technology and engineering. That is because Victor Reinz is an original equipment supplier and the trusted choice of manufacturers the world over, offering broad coverage for foreign and domestic cars and trucks. In Victor Reinz gasket sets, you get the right combination of components needed for fast, long-lasting repairs.
Product Features:
See More
Product Features:
- Choosing Victor Reinz assures getting OE quality parts in gaskets sets that have the coverage, contents, packaging and electronic cataloging to best meet the needs of the aftermarket.
Walker – Exhaust Pipe Flange Gasket (Part No.36496)
from
$16.99
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:
See More
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.31740)
from
$8.99
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:
See More
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
Upgrade your 2021 GMC Sierra 3500 HD with Top-Quality Exhaust Parts
When it comes to maintaining or upgrading your 2021 GMC Sierra 3500 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 3500 HD functioning at its best. At Advance Auto Parts, we offer a wide selection of 12 Exhaust Parts for the 2021 GMC Sierra 3500 HD, designed to meet your needs without breaking the bank.
From
Catalytic Converter
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 2021 GMC Sierra 3500 HD at great prices.
Our Exhaust Parts inventory for this model
ranges from just $6.49 to $954.99, with
an average price of $182.27.
Our 12 Exhaust Parts in stock come from 5 trusted brands, so you’re sure to find the right part for your 2021 GMC Sierra 3500 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 2021 GMC Sierra 3500 HD, we stock popular OEM and aftermarket Exhaust Parts from top names
like FELPRO Dorman, and more.
FELPRO Exhaust Parts
start at just $6.49 and boast an impressive 5 stars average rating from customers.
With 200 customer reviews and counting, our 2021 GMC Sierra 3500 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 2021 GMC Sierra 3500 HD is always ready to roll. We’re committed to providing you with everything you need to keep your Sierra 3500 HD in top shape, all in one place.
Start shopping confidently below for your 2021 GMC Sierra 3500 HD!
Best-Selling Catalytic Converters for 2021 GMC Sierra 3500 HDs
Enhance the driving experience in your GMC with 1 quality Catalytic Converter components, starting at $11.33.
Mahle – Exh. Man. to Pipe Ga (Part No.H4003206101MAH)
from
$11.33
Exh. Man. to Pipe Ga
Most Popular 2021 GMC Sierra 3500 HD Exhaust Manifold and Headers
Customize your GMC with 3 Exhaust Manifold and Headers products
like Exhaust Manifold and Header Hardware, all
priced under $28.99.
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 – 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:
See More
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:
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
Top Picks for 2021 GMC Sierra 3500 HD Exhaust Mufflers
Upgrade GMC Sierra 3500 HDs with top-quality Exhaust Mufflers parts, including 1 OEM and aftermarket selections for your 2021 model.
Mahle – Exhaust Seal Ring (Part No.H4002206261MAH)
from
$14.44
Exhaust Seal Ring
In-Demand Exhaust Pipes for 2021 GMC Sierra 3500 HDs
Select from 3 premium Exhaust Pipes parts for your 2021 GMC Sierra 3500 HD, with prices ranging from $6.49 to $22.03.
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:
See More
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
Felpro – EXHAUST FLANGE GASKET (Part No.61694)
from
$19.99
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:
See More
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
Mahle – Exh. Pipe to Man. Ga (Part No.H4003557587MAH)
from
$22.03
Exh. Pipe to Man. Ga
Most Sold 2021 GMC Sierra 3500 HD Exhaust System Kits
Explore our best-selling GMC parts for the 2021 Sierra 3500 HD among 4 OEM and aftermarket options starting from $15.99.
Dorman – Help – Exhaust Manifold Hardware Kit (Part No.03413)
from
$15.99
Our Exhaust Manifold Hardware Kit comes with the necessary installation components to assist you in replacing your manifold. Save time and energy by having the right hardware on hand when you need it.
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
MBRP Exhaust – Pro Series, 4 In Cat Back System: Polished Tip, 304 Stainless Steel, Designed for Power and Sound (Part No.S5093304)
from
$954.99
PRO Series is the best performance exhaust system that money can buy. It is a series designed and built for the serious enthusiast who will settle for nothing less. Constructed from T304 stainless steel it delivers you optimal durability that keeps on looking its best. Easy to clean and maintain this is the product of choice for owners of lifted vehicles, show trucks or who operate in severe environments.
Product Features:
See More
Product Features:
- 4 Inch Cat Back Single Side Exit (Street Version) Exhaust System
- 4 Inch Mandrel Bent Tubing
- Moderate Sound Level
- Bolt On, No Weld Design Makes Installation A No Hassle One And A Half To Two Hour Project
- Limited Lifetime Warranty
MagnaFlow – Pro Series Filter-Back Performance Exhaust System (Part No.17870)
from
$839.99
The MagnaFlow PRO DPF Series 17870 utilizes it’s weight-optimized, durable, corrosion resistant stainless steel design to enhance your truck with MagnaFlow¿s signature sound and dyno-tested performance. 17870¿s 5in. diameter mandrel bent main piping features a muffler delete and terminates in a Single Passenger Side Rear exit with 6in. Polished Welded-Single Wall-Angle Cut-Rolled Edge-Intercooled tips. This emissions-legal filter-back exhaust kit has been tuned to create Mild interior and Moderate exterior sound levels. Exhaust system 17870 is emissions-legal and produced using CNC precision robotic manufacturing techniques that result in a direct-fit design that you can install yourself, all backed by MagnaFlow¿s limited lifetime warranty.
Product Features:
See More
Product Features:
- Throaty, powerful performance sound Magnaflow is famous for
- Attention grabbing design thanks to an aggressive style
- Intercooled tips
MBRP Exhaust – Installer Series, 4 In Cat Back System: Polished Tip, Aluminized Steel, Designed for Power and Sound (Part No.S5093AL)
from
$514.99
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:
See More
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
Top-Rated Exhaust Parts Brands For Your 2021 GMC Sierra 3500 HD
Shop for the best-rated brands offering Exhaust Parts and other products for your 2021 GMC Sierra 3500 HDs. Below you’ll find some of our best rated Exhaust Parts from FELPRO and Dorman, and more. Exhaust Parts from these brands that fit a 2021 Sierra 3500 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 2021 GMC Sierra 3500 HD Exhaust Parts
When it comes to maintaining or upgrading your 2021 GMC Sierra 3500 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 2021 GMC Sierra 3500 HD. With over 2 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 $13.24. Plus, with over 13 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 Dorman 2021 GMC Sierra 3500 HD Exhaust Parts
Dorman auto parts is one of the highest quality Exhaust Part brands in the market. Any 2021 GMC Sierra 3500 HD owner should feel confident when installing genuine Dorman parts in their vehicle. To ensure the best fit and performance for your 2021 Sierra 3500 HD, Advance Auto Parts carries a full inventory of 4 Dorman Exhaust Parts. Plus you will be keeping your GMC in peak condition while saving money because prices on these Dorman Exhaust Parts range from $15.99 to $28.99, plus, with more than 37 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.
FAQs for 2021 GMC Sierra 3500 HD Exhaust Parts
Which Exhaust Parts are best-sellers for 2021 GMC Sierra 3500 HDs?
Out of 12 Exhaust Parts that fit 2021 GMC Sierra 3500 HDs, the following parts are the top sellers:
- Exhaust Pipe Flange Gasket (20688659) – $6.49
- EXHAUST FLANGE GASKET (10717127) – $19.99
- Exh. Man. to Pipe Ga (12013243) – $11.33
What’s the price range for 2021 GMC Sierra 3500 HD Exhaust Parts?
Exhaust Part prices for the 2021 GMC Sierra 3500 HD start at $6.49 and go up to $954.99 for the most premium parts.
What’s the average price of a Exhaust Part for a 2021 GMC Sierra 3500 HD?
The average price for Exhaust Parts for the 2021 GMC Sierra 3500 HD is $182.27. 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 3500 HD model years?
What are the cheapest Exhaust Parts for my 2021 GMC Sierra 3500 HD?
The cheapest 2021 GMC Sierra 3500 HD Exhaust Parts we carry in stock are:
- Exhaust Pipe Flange Gasket (20688659) – $6.49
- Exh. Man. to Pipe Ga (12013243) – $11.33
- Exhaust Seal Ring (11940932) – $14.44
- Exhaust Manifold Hardware Kit (10840978) – $15.99
- Exhaust Manifold Hardware Kit (10214558) – $17.99
What are the top-rated Exhaust Parts that fit the 2021 GMC Sierra 3500 HD?
Out of 200 reviews by customers, our 2021 GMC Sierra 3500 HD Exhaust Parts have an average customer rating of . These are some of the highest-rated Exhaust Part types for the 2021 GMC Sierra 3500 HD and their top-rated products:
- Exhaust System Kits
- Exhaust Manifold Hardware Kit (10840978) – $15.99
- Exhaust Pipes
- Exhaust Manifold Hardware Kit (10840978) – $15.99
What types of Exhaust Parts do you sell for my 2021 GMC Sierra 3500 HD?
As of 2/5/25, these are some of the most in-demand types of Exhaust Parts for a 2021 GMC Sierra 3500 HD:
Can I get help with 2021 GMC Sierra 3500 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 3500 HD Exhaust Parts?
Advance Auto Parts keeps returns simple. For new GMC Sierra 3500 HD Exhaust Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.
