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The Mahle CP20 plain ring set is a standard‑tension piston ring assembly sized 3.781 inches bore with 2.0mm ring width, intended as an OE‑style replacement for restoring cylinder sealing and compression during engine rebuilds and repairs. Its plain‑ring construction supports routine piston servicing and provides a straightforward option for rebuild projects and replacement inventories.
Mahle Rings Performance CP20 Oil Ring Assembly 3.781in x 2.0MM Std Tension Plain Ring Set
