2001-2004 GM 2500HD/3500HD 6.6L LBZ Duramax Gaskets, Gasket Kits & Bearings

Upgrading the OEM turbo gaskets on your 2001-2004 GM 6.6L Duramax is a smart move for Sierra and Silverado owners looking to ensure dependable turbocharger performance. Our turbo gaskets provide a secure, leak-free seal, even under high boost and extreme heat, preventing exhaust leaks and preserving turbo efficiency. At Alligator Performance, we offer a variety of aftermarket turbo gaskets designed to help your truck endure high temperatures and pressures during demanding conditions. Further upgrade your GM 6.6L Duramax with our excellent selection of Oil Pans, Valve Covers & Accessories and Fuel Upgrades! GM Duramax Fitments: 2001, 2002, 2003, 2004 GM 6.6L Duramax. Submodel Fitments: WT, Custom, LT, LTZ, High Country, 1LT, 2LT, Pro, SLE, SLT, AT4, Denali. Some exceptions apply, please see individual product pages for specific fitments.

GM Duramax>2004.5-2005 6.6L LLY
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Cometic C5883-060 MLS Cylinder Head Gasket - .060" inch Bore 4.100" inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5883-060 MLS Cylinder Head Gasket - .060" inch Bore 4.100" inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5883-060 MLS Cylinder Head Gasket - .060" inch Bore 4.100" inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5883-060
Sale price
$195.29
Regular price
$216.98
Cometic C5882-060 MLS Cylinder Head Gasket - .060 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5882-060 MLS Cylinder Head Gasket - .060 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5882-060 MLS Cylinder Head Gasket - .060 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5882-060
Sale price
$195.29
Regular price
$216.98
Cometic PRO3008B Bottom End Gasket Set | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic PRO3008B Bottom End Gasket Set | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic PRO3008B Bottom End Gasket Set | 2001-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMPRO3008B
Sale price
$190.85
Regular price
$205.22
Cometic C5883-040 MLS Cylinder Head Gasket - .040 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5883-040 MLS Cylinder Head Gasket - .040 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5883-040 MLS Cylinder Head Gasket - .040 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5883-040
Sale price
$147.28
Regular price
$163.65
Cometic C5882-040 MLS Cylinder Head Gasket -.040" inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5882-040 MLS Cylinder Head Gasket -.040" inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5882-040 MLS Cylinder Head Gasket -.040" inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5882-040
Sale price
$147.28
Regular price
$163.65
Cometic C15376-053 .053" inch MLX Cylinder Head Gasket - 4.130" inch Bore | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C15376-053 .053" inch MLX Cylinder Head Gasket - 4.130" inch Bore | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C15376-053 .053" inch MLX Cylinder Head Gasket - 4.130" inch Bore | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC15376-053
Sale price
$195.29
Regular price
$216.98
Cometic C15375-053 .053" inch MLX Cylinder Head Gasket - 4.130" inch Bore | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C15375-053 .053" inch MLX Cylinder Head Gasket - 4.130" inch Bore | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C15375-053 .053" inch MLX Cylinder Head Gasket - 4.130" inch Bore | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC15375-053
Sale price
$195.29
Regular price
$216.98
Cometic PRO3009T Top End Gasket Kit - 4.100 inch Bore .040 inch | 2004-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic PRO3009T Top End Gasket Kit - 4.100 inch Bore .040 inch | 2004-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic PRO3009T Top End Gasket Kit - 4.100 inch Bore .040 inch | 2004-2007 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMPRO3009T
Sale price
$616.36
Regular price
$662.75
01-04 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax ADS Magnum Engine Valve Cover Gasket Set
IN STOCK
01-04 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax ADS Magnum Engine Valve Cover Gasket Set

ADS Racing Shocks

01-04 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax ADS Magnum Engine Valve Cover Gasket Set

SKU: ADS60-3001
Price
$60.04
Industrial PDM-06035 14mm Gorilla Girdle | 2001-2010 GM 2500HD/3500HD 6.6L Duramax
Industrial PDM-06035 14mm Gorilla Girdle | 2001-2010 GM 2500HD/3500HD 6.6L Duramax

Industrial Injection

Industrial PDM-06035 14mm Gorilla Girdle | 2001-2010 GM 2500HD/3500HD 6.6L Duramax

SKU: IISPDM-06035
Price
$1,582.99

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