Quicksilver 861677T V-8 Fuel Pump Assembly quicksilver Fuel pump 861677T is a mechanical fuel pump for use on V8 MerCruiser sterndrive and inboard engines with 454 and 502 CID made by General Motors. Fits GM V-8 (454 & 502 cid) engines.Application: Fits GM V-8 (454 & 502 cid) engines For use on V8 MerCruiser sterndrive and inboard engines made by General Motors; Mechanical fuel pump; See your owner's manual or service manual for specific applications and instructions; Replaces: Pro Marine - 77100; GLM 77100; Sierra 18-8860;