Engine Gaskets & Seals

59 Items

Usually Ships in 24-48 Hours

**Duramax Right Side Cylinder Head Gasket Mahle 54582** $93.71
Fits: Duramax 2001-2016

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**Duramax Exhaust Manifold Gaskets Mahle MS19398** $34.86
Fits: Duramax 2001-2016

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**LB7 Duramax Head Set Mahle HS54580** $298.03
Fits: LB7 Duramax 2001-2004

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**LB7 Duramax Fuel Injector Seal Kit Mahle GS33500A** $4.11
Fits: LB7 Duramax 2001-2004

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**Duramax 2001-2010 Engine Oil Pan Gasket Mahle OS32284** $22.80
Fits: Duramax 2001-2010

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**Duramax Rear Main Engine Crankshaft Seal Mahle 67777** $57.86
Fits: Duramax 2001-2016

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**LB7|LLY|LBZ Duramax Lower Engine Gasket Set Mahle CS54580** $157.71
Fits: LB7|LLY|LBZ Duramax 2001-2007

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**LB7|LBY Duramax Intake Manifold Gasket Set Mahle MS19402** $14.65
Fits: LB7|LBY Duramax 2001-2005

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**LB7 Duramax Valve Cover Gasket Set Mahle VS50549** $90.44
Fits: LB7 Duramax 2001-2004

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**Duramax 01-16 Thermostat Housing Gasket Mahle C31900** $7.26
Fits: Duramax 2001-2016

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**Duramax 2001-2010 Water Pump Gasket Kit Mahle GS33752** $21.86
Fits: Duramax 2001-2010

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**Duramax 01-16 Water Pump Seal Mahle K31904** $2.03
Fits: Duramax 2001-2016

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**Duramax 01-16 Exhaust Manifold To Up-Pipe Gasket Mahle F31903** $9.14
Fits: Duramax 2001-2016

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**LB7 Duramax Valve Cover Gasket & Injector Seal Kit Mahle GS33757** $102.53
Fits: LB7 Duramax 2001-2004

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**Duramax 01-16 Engine Timing Cover Seal Mahle 67775** $38.45
Fits: Duramax 2001-2016

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**LB7 Duramax Valve Cover Gasket Set Mahle VS50438** $60.53
Fits: LB7 Duramax 2001-2004

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**Duramax 2001-2010 Valve Stem Seal Kit Mahle SS45974** $23.71
Fits: Duramax 2001-2010

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**Duramax 01-16 Exhaust Up-Pipe To Turbo Gasket Mahle F32918** $12.74
Fits: Duramax 2001-2016

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**LB7 Duramax Engine Gasket Kit Without Head Gasket Mahle 95-3726** $473.22
Fits: LB7 Duramax 2001-2004

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**LB7|LLY Duramax Water Pump Gasket Kit Mahle C32062** $5.76
Fits: LB7|LLY Duramax 2001-2005

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**Duramax 2001-2010 Fuel Filter Base & Hand Primer Seal Kit Alliant AP0029** $44.56
Fits: Duramax 2001-2010

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**Duramax 01-16 Head Gasket Grade C Right Alliant AP0052** $41.21
Fits: Duramax 2001-2016

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**Duramax 01-16 Head Gasket Grade C 1.05mm Left Alliant AP0049** $41.21
Fits: Duramax 2001-2016

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**Duramax 2001-2010 Head Gasket 0.95mm Grade A Right Alliant AP0050** $41.21
Fits: Duramax 2001-2010

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Prevent fluid leaks, loss of compression, and internal contamination on your 2001–2004 Chevy Silverado or GMC Sierra 2500HD/3500HD with our selection of LB7 Duramax engine gaskets and seals. From daily maintenance and injector replacements to full engine overhauls, using premium sealing components is essential for the 6.6L common-rail platform. We stock multi-layer steel (MLS) head gaskets, lower and upper valve cover gasket sets, front and rear main crankshaft seals, oil pan gaskets, water pump O-rings, and complete engine overhaul gasket kits from top-tier manufacturers like Mahle and OEM GM. Browse our LB7 engine gasket and seal replacement kits below to ensure a leak-free, reliable seal under high boost and heavy towing loads.