Mahle CP20 plain oil ring assembly sized 3.932 in x 2.0 mm with standard tension. This plain ring set is offered as a direct-fit replacement for engines with a 3.932-inch bore that require CP20 plain rings, intended for use in engine rebuilds and routine top-end service to re-establish proper sealing and oil control.
Mahle Rings Performance CP20 Oil Ring Assembly 3.932in x 2.0MM Std Tension Plain Ring Set