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IO-390 Crankshaft

bendougy

Member
I had an incident with my RV8 and am now in the market for a used serviceable IO-390 crankshaft . Part number 13B47219.. Can anyone advice of one available
 
crank

I believe I have one but I will have to check on the price. Its a new superior crank. Lots cheaper than Lycoming.

Jesse

970-874-7575
 
If it helps, the Lycoming part number is 13C37317 (A1A6 or A1B6) or 13C37318 (A3A6 or A3B6). The difference is prop bushing location.
 
CRANKS

It is actually confusing because on the experimental 390's the build they use the small main 13B cranks. It is the same crank as the 200hp 360 counterweighted engines. The certified 390 engines have a large main 13C crank. I know they make a lot more of the small main cranks so it is probably a cheaper option for their experimental engines.

Jesse
 
It is actually confusing because on the experimental 390's the build they use the small main 13B cranks. It is the same crank as the 200hp 360 counterweighted engines. The certified 390 engines have a large main 13C crank.

I learn something new every day! Thanks.
 
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