Keep your 2013-Current Yamaha AR250 running reliably with cooling efficiency by swapping in every genuine part from this all-in-one service kit. It's tailored for the twin 1.9 L engines, so you can breeze through maintenance in an afternoon and be back on the water before sunset.. What's in the kit-and why it matters:. Yamalube 10W-40 Mineral 4W - one gallon plus two quarts for easy top-offs. This marine-grade oil clings to bearings and whisks heat away during long, high-RPM stretches.. (2) 69J-13440-04-00 oil filters - deep-pleat media captures the fine metal particles cheaper filters miss, keeping oil passages crystal clear.. (2) 6S5-E4451-01-00 air filters - fresh pleated elements restore free airflow for crisp throttle response and smoother idles.. (8) NGK LFR6A spark plugs - factory-gapped for instant, reliable ignition after winter lay-ups or all-day cruises.. (2) 6MF-R1321-01-00 stainless impellers - renew water-pump pressure, boosting coolant flow with cooling efficiency so you