Mahle 197987875T Mahle MS GM 6.6L L5P 4.075in Bore 3.898in Stk 6.417in Rod -40.6cc 16.1 CR w/Thermal Barrier Set of 8

407cid 4.075 x 2.122CH, 3.898stroke,6.417rod,1.417pin,-40.6cc,940g,16.1CR, M174+, TBC Coated

Piston (set) - GM 6.6L Duramax L5P Cast Performance Pistons

Application Summary: GM 6.6L Duramax 407 cu in.

Coatings: Grafal + TBC