2004.5-2005 GM 2500HD/3500HD 6.6L LLY Duramax Gaskets, Gasket Kits & Bearings

Maintaining consistent internal pressure and preventing leaks in your engine is made easy with our selection of 2004.5-2005 GM 6.6L Duramax LML Gaskets! Here at Alligator Performance, we offer an excellent variety of high-quality gaskets and gasket sets that range from basic stock replacements to complete performance upgrades. Our gaskets are curated from trusted manufacturers so you can outfit your Sierra/Silverado 2500HD/3500HD with high-quality upgrades. Check out our full lineup of Engine Upgrades! GM Duramax Fitments: 2004, 2005 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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Victor Reinz 02-10484-01 Engine Cylidner Head Gasket Set | 2004-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Victor Reinz 02-10484-01 Engine Cylidner Head Gasket Set | 2004-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Victor Reinz

Victor Reinz 02-10484-01 Engine Cylidner Head Gasket Set | 2004-2010 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: VRZ02-10484-01
$253.06
PPE 314030212 Oil Cooler Gasket Kit | 2003-2007 Ford F250/F350 6.0L Powerstroke
PPE 314030212 Oil Cooler Gasket Kit | 2003-2007 Ford F250/F350 6.0L Powerstroke

PPE

PPE 314030212 Oil Cooler Gasket Kit | 2003-2007 Ford F250/F350 6.0L Powerstroke

SKU: PPE314030212
$35.99
Cometic C5883-051 MLS Cylinder Head Gasket - .051 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5883-051 MLS Cylinder Head Gasket - .051 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5883-051 MLS Cylinder Head Gasket - .051 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5883-051
$147.30
Cometic C5882-056 MLS Cylinder Head Gasket - .056 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5882-056 MLS Cylinder Head Gasket - .056 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5882-056 MLS Cylinder Head Gasket - .056 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5882-056
$195.30
Cometic C5882-051 MLS Cylinder Head Gasket - .051" inch Bore 4.100" inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5882-051 MLS Cylinder Head Gasket - .051" inch Bore 4.100" inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5882-051 MLS Cylinder Head Gasket - .051" inch Bore 4.100" inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5882-051
$147.30
$163.65
Cometic C5882-027 MLS Cylinder Head Gasket - .027 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5882-027 MLS Cylinder Head Gasket - .027 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5882-027 MLS Cylinder Head Gasket - .027 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5882-027
$147.30
Cometic C5883-056 MLS Cylinder Head Gasket - .056" inch Bore 4.100" inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5883-056 MLS Cylinder Head Gasket - .056" inch Bore 4.100" inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5883-056 MLS Cylinder Head Gasket - .056" inch Bore 4.100" inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5883-056
$195.30
$216.98
Cometic C5883-075 MLS Cylinder Head Gasket - .075 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5883-075 MLS Cylinder Head Gasket - .075 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5883-075 MLS Cylinder Head Gasket - .075 inch Bore 4.100 inch LHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5883-075
$195.30
Cometic C5882-075 MLS Cylinder Head Gasket - .075" inch Bore 4.100" inch RHS | 2001-2016 GM Silverado/Sierra 2500HD & 2007-2016 3500HD Duramax
Cometic C5882-075 MLS Cylinder Head Gasket - .075" inch Bore 4.100" inch RHS | 2001-2016 GM Silverado/Sierra 2500HD & 2007-2016 3500HD Duramax

Cometic

Cometic C5882-075 MLS Cylinder Head Gasket - .075" inch Bore 4.100" inch RHS | 2001-2016 GM Silverado/Sierra 2500HD & 2007-2016 3500HD Duramax

SKU: COMC5882-075
$195.30
$216.98
Cometic C5882-045 MLS Cylinder Head Gasket - .045 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax
Cometic C5882-045 MLS Cylinder Head Gasket - .045 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

Cometic

Cometic C5882-045 MLS Cylinder Head Gasket - .045 inch Bore 4.100 inch RHS | 2001-2016 GM Silverado/Sierra 2500HD/3500HD 6.6L Duramax

SKU: COMC5882-045
$147.30
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
$195.30
$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
$195.30

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