Mercury Mercruiser - 3" Riser Kit - 2002 MCM V-8 Non-EC Engines - Standard Cooling - 864306A3 Yamaha-F150-2023 A: Many mechanically inclined owners

A: Many mechanically inclined owners can install a thermostat

Fits 2014 & newer MerCruiser Marine 4

It’s designed to safely blend with other marine hydraulic fluids during top-offs or system refills

you’ll barely notice it — and that’s exactly the point

Mercury Mercruiser - 3" Riser Kit - 2002 MCM V-8 Non-EC Engines - Standard Cooling - 864306A3 Yamaha-F150-2023 A: Many mechanically inclined ownersRaises the height of the GM V 6 & V 8 small block (non Electronic Control) engines with dry joint exhaust system to prevent water from entering the engine through the exhaust system. Maximum height of 6 inches (152 mm). 3 inches (76 mm) for standard cooling and dry joint exhaust manifolds. Fits 2002 MerCruiser Marine V 8 (305, 350 & 377 cubic inch displacement ) non Electronic Control engines (serial number 0M600000 0M614999). WARNING: This product