Outboard Piston Kit .040 Oversize Compatible With 1972-1997 Mercury 40Hp 45Hp 50Hp 2-Stroke

MERCURY / MARINER 20-50 HP 2-STROKE CROSS FLOW OUTBOARD:

2-CYLINDER MODELS (2.565" Bore):
• Mercury 20 HP 2-Cyl Cross Flow - 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
• Mercury 25 HP 2-Cyl Cross Flow - 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
• Mercury / Mariner 30 HP 2-Cyl Cross Flow - 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
• Mercury 35 HP 2-Cyl Cross Flow - 1984, 1985, 1986, 1987, 1988, 1989
• Mercury 40 HP 2-Cyl Cross Flow - 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989
• Mariner 25 HP 2-Cyl Cross Flow - 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
• Mariner 30 HP 2-Cyl Cross Flow - 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985, 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997

4-CYLINDER MODELS (2.565" Bore):
• Mercury 40 HP 4-Cyl Cross Flow - 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997
• Mercury 45 HP 4-Cyl Cross Flow - 1986, 1987, 1988, 1989
• Mercury 50 HP 4-Cyl Cross Flow - 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981, 1982, 1983, 1984, 1985
• Mariner 40 HP 4-Cyl Cross Flow - 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997

ENGINE SPECIFICATIONS:
• Configuration: 2-Stroke Cross Flow
• Standard Bore: 2.565" (65.15mm)
• Cylinders: 2-Cyl (20-40 HP) / 4-Cyl (40-50 HP)

NOTE:
• Piston kit for one cylinder - order quantity to match cylinder count
• Kit includes: Piston, Riken Rings, Wrist Pin, Circlips
• MOS2 coated for high performance and heat absorption
• Cross flow engines ONLY - verify engine type before ordering