Keep your 2015-2020 Yamaha AR240-standard, High Output, or California trim-running smooth with cooling thanks to this genuine Boat Service Kit. Yamaha engineers matched every component to the twin 1.8 L engines, so maintenance is quick, accurate, and spill-free.. What's inside and why it matters. Two gallons Yamalube 10W-40 Mineral 4W - marine-grade oil that clings to moving parts and sheds high-rev heat.. (2) 69J-13440-04-00 oil filters - deep-pleat elements trap the fine debris cheaper filters miss.. (2) 6AP-E4451-00-00 air filters - fresh media restores unrestricted airflow for crisp throttle response.. (8) NGK3 LRF6A spark plugs - factory-gapped plugs fire instantly after long dock days.. (2) 6AP-R1321-10-00 stainless impellers - rebuild water-pump pressure, boosting circulation with cooling efficiency on scorching afternoons.. Disposable Yamaha funnel - keeps oil where it belongs, not in your bilge.. Swap everything in a single afternoon and hit the water knowing your engines are