Piston Ring for KE7, KF7, KF9, KG7, KG7H KG9, KH7, Mark 20 & 20H, Mark 40 & 40H, Mark 50, Mark 25, Mark 55 & 55H, Mark35A, Merc 300, Merc 350 (4 cyl.), Mark 75

KG4 & KG4H, Mark 15, Mark 30 & 30H

Piston ring fits:
1980 - 1988 Merc 115 (6 cyl)
1978 - 1981 Merc 140
1978 Merc 1500XS
1987 - 1989 Merc 35
1984 - 1986 Merc 35 (2 cyl)
1980 - 1983 Merc 40 (2 cyl)
1978 - 1979 Merc 402,40
1986 - 1990 Merc 50 (3 cyl)
1984 - 1990 Merc 60 (3 cyl)
1977 - 1983 Merc 70 (3 cyl)
1984 - 1986 Merc 75 (4 cyl)
1978 - 1983 Merc 800,80 (4 cyl)
1980 - 1986 Merc 90 (6 cyl)
1978 - 1979 Merc 900,90

Mark 28, Mark 28A, Mark 58, Mark 55A, Mark 58A, Mark 75A, Mark 78, Mark 78A, Merc 200, Merc 250, Merc 400, Merc 450, Merc 500, Merc 600, Merc 700

Standard Piston Rings - KF5, Mark 5, Mark 6, Mark 6A, Merc 60, 60J