Fresh Water Cooling System - Mercruiser 1985-1997 4.3L V6 & Small V8 with V Belts *Standard - High Capacity* (Half System) (#MFH-5398)

CONVERSION KIT FITS:
1985-2001 MerCruiser Chevy based 4.3L and small block V8 engines 305-350 CID both sterndrive and inboard, specifically those engines with alternator mounted low and the power steering pump mounted high both on the port side of the engine. Designed especially for the low capacity raw water pumps used on sterndrive engines. Kit will NOT fit most engines with high mounted alternators, such as late model MerCruiser engines and/or v-drives. Separate kits are available for those engines. Some engines have fuel line routing and fuel filter location that must be slightly changed. Heat exchanger is 3 3/4” in diameter x 21 3/4" long and fits within overall length, width, and height of most engine conversions. See above illustrations. Plastic expansion tank mounts either on front of heat exchanger or, if space is limited, on vertical surface next to engine.

COOLING SYSTEM TYPE - Block only.
Engine block is on fresh water system. Exhaust manifolds remain on raw water system.

CONVERSION KIT
A kit includes heat exchanger, heavy-duty translucent plastic expansion tank plus all other components necessary to complete conversion. Some components from the engine are reused. Heat exchanger is primed gray. Brackets and other components are painted black or zinc plated. All hose clamps are stainless steel.

HEAT EXCHANGER
Shell and tube type heat exchanger with special high capacity design. All copper alloy construction made to the highest industry standards. Dual demountable clean out end covers. Zinc anode protection.

COOLING SYSTEM CAPACITY
System will maintain engine temperature in the 160-170 F range using the 160 F thermostat, included in kit. System has a capacity safety margin higher than industry standards.

HEATER SYSTEM HOOKUP
Heaters, such as galley water heaters and cabin heaters, are easily connected to the system by utilizing the cooling system bypass connections.

INSTALLATION TIME
Typical average installation time is approximately one hour, assuming new engine and normal accessibility. Allow additional time for filling and testing. Installation skills are not beyond those of most do-it-yourself boat owners. Complete illustrated installation instructions are included in kit. Ordinary hand tools are used.

MFH-5398 System Specifications (opens in a new window)

MFH-5398 Kit Installation Instructions (opens in a new window)

WARRANTY Two-year warranty on complete kit. Monitor is not responsible for labor charges or any indirect or consequential costs or damages. MONEY BACK GUARANTEE