MerCruiser 423-810842T Crankshaft 3.0L 140hp 4cyl 1990-1999 1-Piece Oil Seal Carburetor but not perfect

but not perfect

) GM 327 V-8 1963-1966 1539620 THRU 2278646

can't find number in parts diagrams)

0L 140hp engines which has arrestors with smaller openings)

Item Details Used in MerCruiser 120hp 2

MerCruiser 423-810842T Crankshaft 3.0L 140hp 4cyl 1990-1999 1-Piece Oil Seal Carburetor but not perfectItem Details MerCruiser Part Number 423 810842T Used from 1990 1999? on MerCruiser & OMC GM 140hp 4cyl 3. 0L engines using the 1 piece oil seal Engine Serial Numbers SN# 0L605541 & Below This is for engines with a 1 piece rear main seal. which they switched over to in 1990 MerCruiser Part Number 423 810842 423 810842T GM part # N140966 140966 140968? as I see in some references Just make sure yours has the same stamped part number of 140966 Engine