Yamaha 200HP, 225HP, 250HP, 300HP 4.2L 100 Hr Service Kit

Each kit includes all the hardware to replace the external anodes, fuel filter and gasket, hardware to swap out the water pump impeller, thermostat, and coordinating gasket, as well as spark plugs for the outboard. These kits were designed for our customers to use every 100 hours or each year - whichever comes first. These kits are not a replacement for the Yamaha oil change kit , but should be used in addition to the oil change kit.