Mahle OE S42170 Mahle Rings Cummins 102mm/4.017in Bore ISB ISF 3.8L 5.9L B5.9G Chrome Ring Set

Engine Piston Ring Set

MAHLE(R) piston rings are the most technically advanced piston rings in the industry. Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life. MAHLE piston rings lead the industry for the latest piston ring technology.