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Main bearings

bryanflood

Well Known Member
Does anyone know why there are so many different crankshaft bearings offered for Lycoming engines? The rebuild manual I have lists 3 different parts numbers for my crankshaft bearings.

18D19394
LW-16047 (alternate)
LW-11021 (alternate)

It seems like Lycoming is saying that you can just use whatever you want, or is there a preference to a part number? I noticed superior also says that you can use part number

SL11020


Can anyone help me figure out if there is some reasoning to this?

Thanks,

Bryan
 
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