1975 Cobalt Prop Info needed

kbertsch

Cadet
Joined
May 26, 2007
Messages
19
I have a 1975 Cobalt 16' tri haul in need of a prop. Here is what I know. The boat weighs 2,350 lbs. The prop that just broke has no identifiable numbers on it. I downloaded from the Cobalt website this info. There are 2 props recommended, one for Heavy loads and one for Light loads. The Heavy load size is 15 1/4 X 21C, Cobalt #46350106, Mfr #48-65992A4. The Light load size is 15 X 23C, Cobalt #48-58426A4. The propeller shaft has 15 Splines and the Mercruiser Sterndrive S/N is 4180417. Unless I am looking in all the wrong places I CANNOT find anything online with these numbers. Can someone please help?
 
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