MerCruiser 89872A4 89577 32-48944 Engine Oil Filter Cooler 4cyl 3.7L 485 1980-82 50hp Piston (Standard Size / Long

Piston (Standard Size / Long 3-3/16" Skirt) GM 10128213 (stamped)

Do not confuse this with 909044 (see infographic)

Valve Double Ball End Push Rod: 99948

Not sure on the actual oil check valve condition

Part Number 45597 / 45597A1

MerCruiser 89872A4 89577 32-48944 Engine Oil Filter Cooler 4cyl 3.7L 485 1980-82 50hp Piston (Standard Size / LongPart Number(s) Included MerCruiser 89577 Oil Filter Adapter Assembly Replaced by 94023A1 Adaptor Assembly MerCruiser 89872 > 89872A4 Engine Oil Cooler MerCruiser 32720 Threaded Oil Filter Adapter Replaced by 22 805632 Connector MerCruiser 32 48944 Oil Filter to Adaptor Cooler (7") MerCruiser 89576 Oil Filter Adaptor Bushing MerCruiser 22 63825 Adaptor to Base Elbow (90 Deg) MerCruiser 22 48872 Bushing to Hose Elbow (45 Deg) General Application