Engine Oil Cooler Gasket & Seal Kit.
Includes all O-rings, Seals and Gaskets to remove and rebuild the engine oil cooler.
We include the large rectangular gasket for the 90° water casting, however we find it works best to use Permatex The Right Stuff in place of this gasket.
Fits: 2001-2010 Chevy/GMC 6.6l Duramax LB7 LLY LBZ LMM engines.