Mercury FourStroke Outboards 300-Hour Maintenance Kit 8M0090559

The Mercury FourStroke Outboards 300-Hour Maintenance Kit 8M0090559 is designed to simplify scheduled 300-hour maintenance while helping support engine reliability, fuel system performance, cooling system efficiency, and long-term durability.

Compatible With:

• Mercury 40HP EFI FourStroke outboards with BigFoot or Command Thrust gearcases

• Mercury 50HP EFI FourStroke outboards with BigFoot or Command Thrust gearcases

• Mercury 60HP EFI FourStroke outboards with BigFoot or Command Thrust gearcases

• Four-cylinder EFI models only

• Serial number 1C000001 and newer

Kit Includes:
Oil filter, low- and high-pressure fuel filters, oil drain seal, gearcase seals, thermostat and thermostat gaskets, four spark plugs, water pump impeller kit, power trim anode, and lower unit anode.

This maintenance kit contains the Mercury-recommended replacement components required for the 300-hour service interval. Genuine Mercury service parts help ensure proper fitment and dependable performance.

To confirm compatibility, contact our team with your engine serial number at (727) 596-5929 before ordering.