Cylinder Head Gasket Set Grade C for 6.6l Duramax 2001-2015 12637785 12637788

Genuine Cylinder Head Gaskets for 2001-2015 LB7 LLY LBZ LMM LGH LML 6.6l Duramax engines.

Cross Reference: 12637785, 12637788

This listing is for a pair of head gaskets (Grade C). New head bolts are required when head is removed to replace gaskets.