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