Give your 2003-2005 Yamaha SR230-including California models-the cool-running confidence it deserves with this factory-matched Service Kit with Cooling. Built for the boat's twin engines, it packs every OEM component you need for a thorough, driveway-friendly tune-up-no shop appointment required.. Stand-out advantages. Two gallons of Yamalube 10W-40 mineral oil absorb heat and cushion internal parts during long summer pulls.. Dual 5GH-13440-71-00 oil filters and twin 6B6-14451-00-00 air filters keep lubrication clean and airflow balanced across port and starboard engines.. Eight NGK CR9EB plugs arrive pre-gapped, firing crisply for smoother idle.. Matched impellers-68N-R1321-10-00 (starboard) and 6B5-R1321-00-00 (port)-restore strong coolant flow, crucial when idling through no-wake zones.. Inside the box. Two 1-gal jugs Yamalube 10W-40. One LUB-10W40-WV-12 top-off bottle. Two 5GH-13440-71-00 Oil Filters. Two 6B6-14451-00-00 Air Filters. Eight NGK CR9EB Spark Plugs. 68N-R1321-10-00 Imp