Want better insight into how your engine is breaking in or wearing over time? Wondering whether your oil is still protecting the way it should? Looking to catch potential issues before they become bigger problems? PartsVu has partnered with Blackstone Laboratories and now offers professional oil analysis kits. Results are typically delivered by email within a few days. Shop now.

Yamaha F90 300 Hour Service Maintenance Kit - Yamalube 10W-30 Full Synthetic - 2003-2004

Keep your Yamaha F90 outboard ready for dependable performance with this 300 Hour Service Maintenance Kit. Designed for 2003-2004 F90 models, this kit includes the main service components needed for a more complete maintenance interval, including engine oil, oil filtration, lower unit service items, fuel filtration, ignition components, thermostat replacement, and cooling system maintenance.

Built around Yamalube 10W-30 Full Synthetic FC-W marine engine oil, this bundle helps simplify scheduled maintenance by pairing the correct lubricants with Yamaha service parts, NGK spark plugs, replacement gaskets, thermostat service parts, and a Yamaha water pump repair kit. It is a practical way to stay organized during 300 hour service without sourcing each item separately.

Key Features

• Complete 300 hour service kit for Yamaha F90 outboards from 2003-2004
• Includes Yamalube 10W-30 Full Synthetic FC-W marine engine oil for dependable lubrication
• Yamaha oil filter, primary fuel filter, thermostat, and water pump repair kit included
• Marine gear case lube helps support lower unit protection and smooth operation
• NGK V-Power spark plugs help promote reliable ignition and consistent engine performance
• Cooling system components help support proper operating temperature and water flow
• Bundled package helps make larger scheduled maintenance intervals easier and more organized

What This Kit Contains

• Qty 1: 5GH-13440-71-00 - Yamaha F115 F100 F90 F75 F50 F40 F30 Oil Filter
• Qty 1: 61N-24563-10-00 - Yamaha Primary Fuel Filter
• Qty 1: 67F-12411-01-00 - Yamaha Thermostat - F75 F90 F150 F200 F225 F250
• Qty 1: 67F-W0078-00-00 - Yamaha Water Pump Repair Kit - F75 F80 F90 F100
• Qty 2: 90430-08003-00 - Yamaha Outboard Lower Unit Drain Gasket
• Qty 1: 90430-14M09-00 - Yamaha Oil Plug Drain Gasket
• Qty 1: ACC-GEARL-UB-QT - Yamalube Marine Gear Case Lube Oil, 32 oz.
• Qty 1: QBL-10W30-FS-04 - Yamalube 10W30 Outboard Mineral 4M FC-W Marine Engine Oil Gallon
• Qty 4: PV464282 - NGK LFR5A-11 (6376) V-Power Spark Plug

Engine Compatibility

• Yamaha F90 – 2003-2004

Why Choose a Complete Service Kit?

A complete service kit makes larger maintenance intervals easier by keeping the required service items together in one package. It helps reduce the chance of missing important parts, saves time during prep, and gives DIY boat owners and professional technicians the core components needed before service begins.

Performance Benefits

Routine 300 hour maintenance helps protect the systems your outboard depends on most. Fresh engine oil supports internal lubrication and helps reduce wear. Replacing the oil and fuel filters helps keep contaminants away from key engine systems. New spark plugs support dependable ignition and efficient combustion. Gear case lube helps protect lower unit gears and bearings, while the thermostat and water pump repair kit help support proper cooling system performance.

FAQ

Is this kit specific to certain Yamaha F90 models?
Yes. This kit is designed for Yamaha F90 outboards produced from 2003-2004.

Is this a complete 300 hour service kit?
Yes. It includes engine oil, oil filter, fuel filter, spark plugs, drain gaskets, gear case lube, thermostat, and a water pump repair kit.

Does this kit include cooling system service parts?
Yes. This kit includes a Yamaha thermostat and water pump repair kit to help support cooling system maintenance.

Does this kit include lower unit service parts?
Yes. It includes Yamalube gear case lube and lower unit drain gaskets for routine lower unit maintenance.

Why are spark plugs included in a 300 hour kit?
Replacing spark plugs during scheduled service helps support reliable ignition, clean combustion, and consistent engine performance.