Mercury, Mariner, Force: 40 - 140 HP 

4-1/4” Gearcase (15-zobu ass)

• 40 HP Bigfoot (4-Stroke)/CT - All Years
• 50 HP Bigfoot (4-Stroke)/CT - All Years
• 60 HP Bigfoot (4-Stroke)/CT - 1995 & Newer
• 60 HP (Sea Pro/Marathon) - 1995 & Newer
• 65 HP (Model 650 - 4 Cyl) - 1961 - 1970
• 65 HP (Model 650 - 2 Cyl) - Up to 1971
• 70 HP - 1987 - 1989
• 75 HP (2 & 4-Stroke) - 1984 & Newer
• 75 HP (Sea Pro/Marathon) - All Years
• 80 HP - 1978 1989
• 80 HP (Mariner) - 1978 - 1983
• 80 HP (Yamaha) - 1977 - 1983
• 80 HP (Model 800, 2 & 4 Cyl) - Up to 1977
• 85 HP (Model 850, 2 & 4 Cyl) - Up to 1977
• 90 HP (2 & 4 Stroke) - 1978 & Newer
• 90 HP (Yamaha) - 1978 - 1983
• 100 HP - 1988 - 1999
• 115 HP (2 & 4-Stroke) - 1978 & Newer
• 115 HP (Yamaha) - 1978 - 1983
• 125 HP - 1994 & Newer
• 140 HP (Includes Sea Pro/Offshore) - 1978 - 1979
• Models 900 - 1500 - Up to 1977
• (FORCE) 75 HP - 1999 & Newer
• (FORCE) 90, 120, 150 HP - 1995 & Newer