Freshwater Cooling Kit for a 1999 - Earlier V6-V8 Volvo Penta/OMC Chevy Based GM Engines (Block Only) P/N MFV-5241 (#MFV-5241)

1999 or earlier GM (Chevy) based V6/V8 engines lacking power steering or with power steering pump mounted low on port side of engine.

System mounts vertically on front starboard side of engine. Fits within overall height, width and length of engine. Expansion tank 9" wide, 9" high, 5" deep mounts separately on vertical surface next to engine. In case of unforeseen installation space problems kit may be returned within 30 days for full credit.

Block only. Engine block on fresh water system. Exhaust manifolds remain on raw water system.

Kit includes heat exchanger, heavy-duty translucent plastic expansion tank plus all other components necessary to complete conversion. Some components from engine are reused. Heat Exchanger and Brackets are finished in black. Hose clamps all stainless steel.

Shell and tube type. Specifically designed for the low cooling water flows, characteristic of sterndrive engines. All copper alloy construction made to the highest industry standards. Heavy-duty dual demountable clean out end covers. Zinc anode protection.

Will maintain engine temperature in the 160-170 range using 160 F thermostat, included in kit. Higher temperature thermostats may be used but may result in too high oil temperature if the engine is run hard. System has capacity safety margin higher than industry standards.

Heaters such as galley water heaters and cabin heaters are easily connected to the system by utilizing the cooling system bypass connection. Complete instructions included in kit.

Approximately one hour for experienced mechanic assuming new engine and normal accessibility. Allow additional time for filling and testing. Expect a professional installer to include safety margin and charge for 2-3 hours of labor. Installation skills are not beyond those of most do-it-yourself boat owners. All components bolt on. No metal cutting involved. Some pipe thread connections. Some hose cutting.

Minimum: screw driver, 7/8 deep socket or box wrench, 9/16 socket or box wrench, medium pipe wrench, knife, pipe dope.

MFV-5241 System Specifications (opens in a new window)

MFV-5241 Kit Installation Instructions (opens in a new window)

Two year warranty. For complete details see Limited Warranty for Fresh Water Cooling Kits document enclosed with your kit and located on policies page of our website.