Mahle Rings GMC Pass 121 2.0L OHC Eng 87 94 Plain Ring Set Histria. MAHLE(R) piston rings are the most technically advanced piston rings in the industry. Driven by OE requirements; reducing friction and ring mass while minimizing engine oil consumption, and providing longer service life. MAHLE piston rings lead the industry for the latest piston ring technology. This Part Fits: Year Make Model Submodel 1983 1984,1987 1988 Buick Skyhawk Custom 1983 1984,1987 Buick Skyhawk Limited 1988 Buick Skyhawk SE 1987 Buick Skyhawk Sport 1983 1984,1987 Buick Skyhawk T Type 1987 1988 Oldsmobile Firenza Base 1987 1988 Oldsmobile Firenza Cruiser 1987 Oldsmobile Firenza GT 1987 Oldsmobile Firenza LC 1987 Oldsmobile Firenza LX 1987 Oldsmobile Firenza S 1987 1988 Pontiac Grand Am Base 1987 1989 Pontiac Grand Am LE 1987 1989 Pontiac Grand Am SE 1983 Pontiac J2000 Base 1983 Pontiac J2000 LE 1983 Pontiac J2000 SE 1984 Pontiac J2000 Sunbird Base 1984 Pontiac J2000 Sunbird LE 1984 Pontiac J2000 Sunbird SE 1989 1990 Pontiac LeMans GSE 1989 1990 Pontiac LeMans LE 1989 Pontiac LeMans SE 1989 1990 Pontiac LeMans Value Leader 1987 1988 Pontiac Sunbird Base 1987 1994 Pontiac Sunbird GT 1989 1991,1994 Pontiac Sunbird LE 1992 1993 Pontiac Sunbird LE Value Leader 1987 1994 Pontiac Sunbird SE 1991 Pontiac Sunbird Value Leader