Mahle OE 10-16 GMC /11-16 Chevy 2500/3500 6.6L V8 Duramax Standard Size w/ Rings (Set of 8)

MAHLE pistons are OE quality and have features like compensated ring grooves for proper ring loading and oil control, and expansion-controlled designs for small fitting clearances to reduce engine noise, wear, emissions, and improve oil control. They come ready for installation with mounted piston rings, pin, and clips. MAHLE is a leading OE piston manufacturer. Piston rings are crucial for sealing the combustion chamber, preventing gasses from entering the crankcase and oil from entering the combustion chamber. Replacing them is recommended if the engine is burning oil, losing compression, or during a rebuild.