Keep your Yamaha SX240-standard, High Output, or California-spec-running strong with Cooling thanks to this genuine Yamaha Boat Service Kit built for 2015-2020 models. Each part is factory-matched to the twin 1.8 L engines, so routine upkeep feels simple and stress-free.. What's in the box?. (2) Gallons Yamalube 10W-40 Mineral 4W oil: fights high-rev heat and keeps viscosity steady.. (2) 69J-13440-04-00 oil filters: high-capacity elements capture the fine debris cheaper filters miss.. (2) 6AP-E4451-00-00 air filters: fresh breath for the intake, restoring crisp throttle response.. (8) NGK LFR6A spark plugs: quick, reliable ignition for smooth holeshots.. (2) 6AP-R1321-10-00 stainless impellers: renew water-pump pressure, boosting circulation with cooling efficiency on scorching summer runs.. (1) Disposable Yamaha funnel: keeps oil changes neat, not messy.. From preseason prep to mid-summer maintenance, this kit puts every critical component in one place. Expect fewer parts runs, faster