300-hour service kit for Mercury 75-115 HP FourStroke (1.7L) Original Mercury/Quicksilver This complete 300-hour service kit is specifically designed for Mercury FourStroke engines with 75–115 horsepower (1.7L), serial numbers 1B366823 – 2B094995. The kit includes all necessary parts to ensure optimal performance and extend the lifespan of your engine. Contents: Oil filter Fuel filter Oil drain gasket 2 gearcase gaskets 4 spark plugs Thermostat kit Water pump impeller kit Drive belt Power trim anode Trim tab anode