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GMC SIERRA 2500 HD Gaskets & Seals

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Results 1 - 20 of 20

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ACDelco Rear Main Seal Housings

ACDelco offers rear main seal housings for a wide range of year/make and engine applications. The one-piece aluminum replacements are designed, engineered, tested, and backed by General Motors. They are validated OE parts for specific Chevrolet, Buick, GMC, and Cadillac vehicles. These components are designed to give the engine oil leak protection from between the crankshaft output flange and the engine block. Order the engine crankshaft seal housing recommended for your ride.

4.5 out of 5 stars ( 8 )

$66.99

Chevrolet Performance Composition Head Gaskets

Chevrolet Performance composition head gaskets are recommended for stock and mildly modified engines. They're available in a variety of bores, compressed thicknesses, and volumes for fitment on specific vehicle and engine applications.

4.63 out of 5 stars ( 120 )

$66.99

$99.99

Mahle Original Cylinder Head Gaskets

Mahle Original offers a choice of cylinder head gaskets to fit your project with the most effective, leak-free seal. Because vehicles and performance levels are as different as the people who drive them, a head gasket that works for you may not work for another. Mahle Original knows this. Their list of head gasket materials includes multi-layered steel, Solicor, VR-2000, Nitroseal, and VR500. Each does their job differently, but you can rest assured that the sealing job they do will be effective and efficient. Positive sealing is available with Mahle Original cylinder head gaskets. Order the style designed for fitment with your vehicle and engine application.

4.31 out of 5 stars ( 45 )

$77.99

$102.99

Cometic MLS Head Gaskets

Cometic MLS head gaskets are constructed from multiple layers of stainless steel for strength and contain load-controlled embossments that conform load distribution across the sealing area. This creates an exceptional seal by requiring less clamp load—resulting in less bore distortion. The stainless steel outer layers utilize FKM (Viton®) rubber coating, a high-temperature and chemical-resistant polymer. A topcoat of PTFE aids in resistance to fret and increased cold sealing. MLS head gaskets are available for most aftermarket cylinder heads; as with all of Cometic's MLS head gaskets, no sealants or re-torque is required.

4.66 out of 5 stars ( 552 )

$87.95

$103.89

Mahle Original Intake Manifold Gaskets

Common symptoms of poor intake manifold gasket sealing may include leaks, rough idling, and stumbling. For your next engine build, use Mahle Original intake manifold gaskets to seal your engine up tight! It's a known fact—proper sealing is vital to create maximum horsepower within the engine, and these gaskets will allow you to achieve a good, positive seal. They utilize premium materials and are precisely designed to match OE quality, fit, form, and function. Order the intake manifold gasket designed for fitment on your particular vehicle by Mahle Original, one of the most trusted names in professional sealing solutions for engines and exhaust.

4.38 out of 5 stars ( 103 )

$69.99

$106.99

Mahle Original Timing Cover Gaskets

No leaks, no problems! Mahle Original timing cover gaskets deliver a perfect fit for a wide range of auto, truck, van, and SUV applications. They're available in a variety of materials and configurations for specific vehicles. The gaskets feature an OE design that meets or exceeds factory specs—and are offered individually or in timing cover seal kits.

5.0 out of 5 stars ( 18 )

$61.99

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ACDelco GM Genuine Parts Intake Manifold Gaskets

ACDelco GM Genuine Parts intake manifold gaskets include the necessary parts to seal your intake manifold to the cylinder head's intake ports. They help prevent the loss of fuel/air mixture from the intake manifold and help prevent dirt/debris from entering the engine and intake ports. These intake manifold gaskets are manufactured from a high grade rubber and are GM recommended replacements for your vehicle's original component. GM Genuine Parts intake manifold gaskets have been made to provide you with the performance, durability, and service life you have come to expect from General Motors.

4.84 out of 5 stars ( 31 )

$99.99

Cometic MLS Exhaust Gaskets

Cometic Gasket's commitment to cutting-edge technology has produced superior-quality gaskets like these Cometic MLS exhaust gaskets. They are constructed from multiple layers of strong stainless steel that has excellent rebound ability and corrosion-resistant characteristics. Outer layers are coated with a heat-resistant, rubber-based material to create a seal that can withstand a variety of sealing and load conditions and surfaces. Cometic MLS exhaust gaskets are ideal for all types of head and block material and their design promotes an even torque load across the sealing surface, allowing for measurably reduced bore distortion.

4.39 out of 5 stars ( 33 )

$87.95

Chevrolet Performance Valley Cover Gaskets

Are you looking to purchase a replacement valley cover gasket? Chevrolet Performance offers quality, heat-resistant valley cover gaskets to replace faulty gaskets for a leak-free connection. These valley cover gaskets are made from durable, heat-resistant composite material to withstand high temperatures and pressure for a reliable seal. One important thing to remember about gaskets is that once they begin to leak, they should be replaced ASAP, or they'll keep leaking while draining money out of your pockets! Don't allow a bad gasket to affect your vehicle's performance--replace it with a new one from Chevrolet Performance.

5.0 out of 5 stars ( 4 )

$56.99

Chevrolet Performance Head Gaskets

Chevrolet Performance has the official parts that your classic vehicle needs to keep it in pristine condition, including these head gaskets, which offer a precision fit between the cylinder head and header to improve exhaust flow. These head gaskets feature durable quality construction to maintain a reliable seal under high pressure and temperature changes. Whether you're installing a new set of heads or are just reinstalling your stock factory manifolds, add Chevrolet Performance head gaskets to ensure a precision fit and a tight, leak-free seal.

4.62 out of 5 stars ( 26 )

$78.99

$96.99

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ACDelco GM Genuine Parts Transmission Pan Gaskets

ACDelco GM Genuine Parts transmission pan gaskets renew leak-free performance. Sealing the interface between the oil pan and the transmission housing, these gaskets utilize premium materials—like cork, elastomer, or silicone/steel—to provide the appropriate fit and function. For your GM vehicle, choose ACDelco GM Genuine Parts transmission pan gaskets to restore the best performance, durability, and service life.

4.35 out of 5 stars ( 17 )

$53.99

$56.99

Mr. Gasket Timing Chain Cover Gaskets

Don't forget to change your gasket when you change your timing chain or cam. These gaskets are designed to provide a reliable seal for your timing chain cover. Made from high grade cork granules and a neoprene binder, these gaskets will not shrink or stick and provide excellent sealing and durability.

4.43 out of 5 stars ( 7 )

$72.55

Dorman Exhaust Manifold Gasket and Hardware Kits

Engines often suffer from exhaust hardware failure due to rust, corrosion, and fatigue from thermal cycling. Dorman exhaust manifold gasket and hardware kits offer a convenient way to service the manifold with the replacement components needed for a complete repair. This all-in-one solution is designed to preserve and restore the proper function of the original equipment exhaust manifolds. The kits include exhaust manifold gaskets, flange gaskets and mounting hardware.

5.0 out of 5 stars ( 1 )

$54.99

Summit Bucks

ACDelco GM Genuine Parts Cylinder Head Gaskets

ACDelco GM Genuine Parts cylinder head gaskets offer the quality, reliability, and durability of GM OE. Head gaskets contain all the heat and compression generated by your vehicle's engine, and they seal the combustion chambers, coolant, and oil passages between the cylinder head and the engine block. ACDelco GM Genuine Parts cylinder head gaskets are the recommended replacements for your vehicle's original components, delivering the right fit, form, and function to keep your engine running properly.

4.67 out of 5 stars ( 3 )

$67.99

Cometic HTS Exhaust Manifold Gaskets

Cometic HTS exhaust gaskets are constructed from multiple layers of strong stainless steel that has excellent rebound ability and corrosion-resistant characteristics. Outer layers are coated with a heat-resistant, graphite-based material to create a superior-quality seal that can withstand a variety of sealing and load conditions and surfaces. Rated for 1400 degrees F, these gaskets are perfect for small engine and turbocharged applications. Cometic HTS exhaust gaskets are ideal for all types of head and block material—and their design promotes an even torque load across the sealing surface, allowing for measurably reduced bore distortion. Order the gaskets recommended for your application.

Not Yet Reviewed

$52.49

Summit Bucks

ACDelco Rear Crankshaft Oil Seals

ACDelco rear crankshaft oil seals are purposely designed with high-quality to replace your factory seals. They're constructed from top-grade materials to meet or exceed OE standards and are designed to provide long-lasting durability and performance. Get the fit, form, and function you need with the ACDelco rear crankshaft oil seals designed for your application.

Not Yet Reviewed

$53.99

Fel-Pro Crankshaft Front Seals

Fel-Pro has you covered when your vehicle needs timing cover seals. Fel-Pro crankshaft front seals are made from top-quality materials to solve the problem of oil leaks, which are sometimes associated with timing cover gaskets. These seals are available in nearly 150 configurations for fitment on vehicles from the 1980s and up.

Not Yet Reviewed

$75.99

Chevrolet Performance Valve Cover Gaskets

These Chevrolet Performance valve cover gaskets will provide a leak-free seal when you're installing or removing your valve covers. Chevrolet Performance valve cover gaskets are made of high-grade materials to reduce the chance of a blowout under high temperatures or pressure. Choose these Chevrolet Performance valve cover gaskets to get the job done right the first time.

4.43 out of 5 stars ( 7 )

$58.99

Chevrolet Performance Timing Covers

Chevrolet Performance timing covers are built to the highest quality standards to ensure an excellent fit and leak-free seal. They're available in various materials, finishes, and configurations for fitment on specific make/model and engine applications.

4.69 out of 5 stars ( 13 )

$50.99

Cometic Copper Head Gaskets

Cometic copper head gaskets create a tight seal you can depend on. These gaskets are made out of a premium soft copper that is specifically designed to create a seal that you can depend on, even in high performance engines. Cometic offers their copper head gaskets in a variety of thicknesses to make finding the right match for your ride easy. Don't settle for lesser quality head gaskets when you can trust Cometic copper head gaskets.

Not Yet Reviewed

$110.21

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