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Mahle's CP20 chrome ring set provides a standard-tension piston ring assembly with 3.0 mm oil rings for a 4.020 in bore. Built to match OE fit and function, this set is aimed at top-end rebuilds and repairs where accurate ring sizing and reliable oil control are needed. It helps restore compression and reduce oil consumption in engines that require the listed bore dimension.
Mahle Rings CP20 Std Tension 3.0MM Oil Rings 4.020in Bore Chrome Ring Set
