1980 OMC Stern Drive Models Where can I find my model number? 3 990334C 990335C 990344C 990345C 3.5 990336C 990337C 990346C 990347C 990347U 4.5 990338C 990339C 990348C 990349C 120 990242C 990242C1 990243C 990243C1 140 990244C 990244C1 990245C 990245C1 185 990252C 990252K 990253C 990253K 200 990260C 990260K 990260U 990266C 990266K 990267C 990267K 230 990254C 990254K 990255C 990255K 990261C 990261K 990261U 260 990256C 990256K 990257C 990257K 990262C 990262K 990262U