Home › Forum › Ask A Member › Parts compatability with 1956 Johnson 10hp › Re: Parts compatability with 1956 Johnson 10hp
July 21, 2015 at 12:00 am
#20496
Gabriel
The 1958 10hp gearcase would NOT fit on your engine. The 10hps used the larger 15/18hp style gearcase up through 1957, OMC adapted the smaller 5.5/7.5hp gearcases for the 10hp in 1958.
I’m thinking the closest match would be the 1956 10hp gearcase, unless you are positive the 54 10hp is actually a 55 10hp.
Keep in mind that spending money on these complete engines to salvage a few parts might lead to disappointment. The clutch dog and gears are likely to be worn on most old 10hps, so don’t pay a lot because this is just a gamble.