MerCruiser 470 170hp 3.7L 4cyl Starter Motor Assembly 50-72550A1 1973-82 9-Tooth Intake Manifolds Stamped part numbers are 98704

Stamped part numbers are 98704 & 98703

You'll need to add your existing brass adapter fitting to this

Removed from a Mercury Outboard 150hp S/N 3630289 (1973)

185hp: 1984-1985

certain 470 models) on MerCruiser R / MR / Alpha One Gen I & II Sterndrives  from 1983-1998

MerCruiser 470 170hp 3.7L 4cyl Starter Motor Assembly 50-72550A1 1973-82 9-Tooth Intake Manifolds Stamped part numbers are 98704Item Details Removed from a 1976 1978 MerCruiser 470 Tested & Working Parts Included Starter Assembly 50 72550 50 72550A1 50 72550A2 9 Tooth Starter Prestolite MHA 7016 Compatibility Used only on EARLIER MerCruiser 470 Models using this type of starter. 1976 1982, but please check your serial number. The 1983 & beyond models used a significantly different looking starter. 1976 1977 1978 1979 1980 1981 1982 Alpha One 470 4 cyl 170hp 3. 7L 224CID