1975 OMC Stern Drive Models Where can I find my model number? 120 990223A 990223A1 990224A 990224A1 140 990225A 990225A1 990226A 990226A1 165 990210R2 990218R2 990227A 990227A1 990228A 990228A1 175 990229A 990229A1 990230A 190 990220R2 990231A 990231A1 990232A 225 990211A 990211A1 990211R11 235 990240A 990241A 245 990212A
