MerCruiser 423-810842T Crankshaft 3.0L 140hp 4cyl 1990-1999 1-Piece Oil Seal Carburetor Bushing Assembly: 23-815921A 20 23-815921A

Bushing Assembly: 23-815921A 20 23-815921A 13

basically the housings are the same internally no matter what drive/engine you have from that period of 1983-1990 with this style of housing (I-4 4cyl

Item Details Used in MerCruiser 120hp 2

Please make sure the parts you are swapping with are stamped 98503 or 95755

MerCruiser 423-810842T Crankshaft 3.0L 140hp 4cyl 1990-1999 1-Piece Oil Seal Carburetor Bushing Assembly: 23-815921A 20 23-815921AItem 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