Quicksilver 8M0125852 Fuel Pump Fuel pump/cooler kit 8M0125852 is use on V6 and V8 MerCruiser EFI sterndrive and inboard engines (305, 350, 377, 454, and 503 CID engines with serial No. OL000000-OM299999 and 496 models and Black Scorpion models with serial No. OL00000 and up) made by General Motors. Kit includes fuel pump, cooling heat sink, connectors and wiring harness. Used in specific applications to help cool fuel for more efficient delivery and combustion. See your owner's manual or service manual for specific application and instructions.Application For use on select MerCruiser EFI sterndrive and inboard engines made by General Motors; Kit includes fuel pump, cooling heat sink, connectors and wiring harness; Used in specific applications to help cool fuel for more efficient delivery and combustion; May help extend the life of fuel system components; Produced to meet Mercury Marine original equipment manufacturer specifications to maximize the performance of your Mercury and Mariner outboard or MerCruiser sterndrive; Fits: GM V-6 & V-8 (305, 350, 377 cid) MPI Engines (serial # 0M300000 - 2A460164)Replaces : 861156A03Genuine OEM Mercury - Mercruiser part.