Mahle CP20 plain oil ring assembly, 3.942 in x 2.0 mm with standard tension. Designed as a replacement for engines that use 3.942-inch bore plain rings with standard tension, this set is intended for piston ring replacement during rebuilds or maintenance where CP20 plain-ring dimensions are required.
Mahle Rings Performance CP20 Oil Ring Assembly 3.942in x 2.0MM Std Tension Plain Ring Set