Mahle OE STD Diesel Piston with Rings Set (Set of 4) for 2001-2005 Chevrolet/GMC 2500 HD/3500 (6.6L) - 2243452WR

Fits select 2001-2005 Chevrolet Silverado and GMC Sierra 2500 HD/3500 (6.6L). This Mahle OE piston set (MPN 2243452WR) is engineered to meet or exceed original equipment standards for the 6.6L Duramax diesel engine. Designed for the engine builder seeking a drop-in solution, these pistons come ready for installation with pre-mounted piston rings, wrist pins, and retaining clips included.

Each piston features compensated ring grooves to ensure proper ring loading and superior oil control under high-pressure diesel operating conditions. The expansion-controlled design allows for tighter fitting clearances, which effectively reduces engine noise, wear, and emissions while maximizing long-term durability. As one of the world's leading OE piston manufacturers, Mahle provides the same materials and tolerances found in the factory power plant.

• Standard (STD) bore size for 6.6L Duramax applications
• Compensated ring grooves for optimized ring-to-wall contact
• Expansion-controlled architecture reduces cold-start noise and skirt wear
• Includes pre-mounted piston rings, wrist pins, and clips
• Set of four (4) pistons
• Manufacturer Part Number: 2243452WR