Engine Application:
3-1/4" Gearcase
25hp Bigfoot(4 stroke)...1999-2005
30hp Bigfoot(4 stroke)...2010-newer
30hp(2&4 stroke)...1994-2005
30hp(sea Pro/Marathon)...1994-newer
35hp...1984-1989
402&500 Models...1974-1984
40hp(2&4 stroke/not bigfoot)...1977-newer
40hp(Sea Pro/Marathon)...1977-newer
45hp...1986-1989
48hp(Mariner)...all years
50hp(2&4 stroke/not bigfoot)...1977-newer
55hp(Mercury/Sea Pro/Marathon)...1995-newer
60hp(4 stroke)(not bigfoot or Sea Pro/Marathon)...1978-newer
60hp(2 stroke)...1978-newer
70hp(Model 700)...1983
Force40/50hp...1995-1998
70hp...1991-1995
75hp...1996-1998
