Description
Head Gasket, Grade C, Left (Driver), Duramax | 2001-2016
This Grade C multi-layer steel (MLS) cylinder head gasket fits the left (driver) side of 2001-2016 Chevy Silverado and GMC Sierra 2500HD and 3500 trucks with the 6.6L Duramax diesel (LB7, LLY, LBZ, LMM and LML) and 2006-2016 Chevy Express and GMC Savana vans with the 6.6L Duramax (LLY, LMM and LGH). It replaces GM 12637785, which superseded 98045060. GM offers the Duramax head gasket in three thicknesses, Grade A, B and C, chosen by piston protrusion. Grade C is the thickest at 1.05 mm compressed, and it's the common choice for rebuilds and for heads or blocks that have been resurfaced.
Replace the head gasket any time the cylinder head is removed, after a head gasket failure, or during an engine rebuild. Head gaskets should not be reused.
Product details
- Replaces GM 12637785 (formerly 98045060)
- Grade C (1.05 mm) multi-layer steel head gasket
- Left (driver) side; order the right side separately
- Safe for up to .008" of combined head and block machining
- Suitable for cylinder overbores up to .040"
- (1) Grade C cylinder head gasket, left (driver) side
- Left side only: the left and right gaskets are not interchangeable. For the passenger side, order the Grade C Right Head Gasket .
- Machining limits: if total machining exceeds .008" or the cylinders are bored more than .040" over, measure piston protrusion and piston-to-head clearance before final assembly.
Fitment / application
Head Gasket, Grade C, Left (Driver), Duramax | 2001-2016
Confirm year, engine, transmission or axle configuration before ordering.
Manufacturer product reference: Specifications and fitment.
