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The Mahle OE chrome piston ring set for Cummins ISB/ISF engines (102mm / 4.017in bore) uses OE-driven piston ring technology focused on reducing friction and ring mass while minimizing engine oil consumption for longer service life. These chrome rings act as direct replacements to restore piston sealing, support combustion efficiency and help maintain reliable operation in 3.8L and 5.9L Cummins applications.
Mahle Rings Cummins 102mm/4.017in Bore ISB ISF 3.8L 5.9L B5.9G Chrome Ring Set
