Keep your Yamaha SX230 (including California models) running smooth — and cool — with this all-in-one Yamaha Boat Service Kit with Cooling designed for 2004-2006 models. Everything inside is genuine Yamaha, pre-matched to your twin engines, so weekend maintenance feels less like a chore and more like peace of mind.

Why it matters

• Fresh Yamalube 10W-40 Mineral 4W (1 gallon) tackles high-rev heat while protecting internal parts.

• Dual oil filters (5GH-13440-71-00) capture debris others miss, keeping oil pathways clear.

• Two air filters (6B6-14451-00-00) breathe new life into your intake system for consistent throttle response.

• Eight NGK CR9EB spark plugs fire reliably for crisp acceleration every time you punch the throttle.

• Matched impellers—Starboard 68N-R1321-10-00 & Port 6B5-R1321-00-00—restore full water-pump pressure, boosting circulation with cooling efficiency to safeguard your engines on hot summer runs.

• A disposable Yamaha funnel rounds out the kit and keeps the mess off your deck.

Whether you’re prepping for the first launch of the season or mid-summer upkeep, this kit puts every critical component in one box, so you can spend less time in the garage and more time carving wakes.