A 9.9 hp Mariner outboard, serial number OC269812, would be a 1990 year model.
1956
1998
1991
1990
A 75 hp Mariner, serial number OC282117 is a 1990 year model.
Along with the engine serial number, the horsepower rating is needed to detemine the year model for a Mariner outboard.
9989819
qg616727
MARINER - ( 5 H.P. (1985)) Serial No: 00147151 Model No: 7005205 .
What year is the mariner 9.9c 682cs 066674
1990