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Yamaha | 20 Hour Service Maintenance Kit | F350

Complete your Yamaha F350 break-in service with a fully bundled 20 hour maintenance kit featuring Yamalube 20W-40 FC-W engine oil. This kit is built specifically for Yamaha F350 outboards and includes the essential components required at the initial 20-hour service interval to help protect your investment from day one.

The first service is critical for removing initial wear particles, refreshing lubrication, and ensuring proper sealing. This kit includes the correct quantity of engine oil, genuine Yamaha oil and fuel filters, HD gearcase lube, and new drain gaskets so you can perform a clean, complete service without sourcing parts individually.

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What’s Included in This Kit

• 1 x LUB-20W40-FC-04 – Yamalube 20W40 Outboard Mineral 4M FC-W Engine Oil (Gallon)
• 3 x LUB-20W40-FC-12 – Yamalube 20W40 Outboard Mineral 4M FC-W Engine Oil (Quart)
• 1 x N26-13440-03-00 – Yamaha Outboard Oil Filter
• 1 x 6P3-WS24A-02-00 – Yamaha Primary Fuel Filter Element
• 1 x MAR-10MEL-00-00 – Yamaha Outboard 10-Micron Fuel Water Separating Filter
• 2 x ACC-GLUBE-HD-QT – Yamalube Marine Gear Case Lube Oil HD
• 2 x 90430-08003-00 – Yamaha Outboard Lower Unit Drain Gaskets
• 1 x 90430-14M09-00 – Yamaha Oil Plug Drain Gasket
• 1 x Lower Unit Gear Case Oil Quart Pump

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Why the 20-Hour Service Matters

• Removes break-in contaminants: Fresh oil and a new oil filter help eliminate initial engine wear particles.
• Fuel system protection: Dual-stage filtration helps reduce water and debris reaching the engine.
• Lower unit reliability: HD gear lube supports gear protection under high-load offshore conditions.
• Proper sealing: Replacing drain gaskets helps reduce the risk of leaks after service.
• Convenience: All required core maintenance components are packaged together for efficiency.

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Service Notes

• Designed for Yamaha F350 outboard models.
• Always replace drain gaskets during service to help maintain proper sealing.
• Use the included quart pump for easier gearcase refilling.
• Dispose of used oil and gear lube according to local environmental regulations.

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FAQ

How much oil does the F350 require?
This kit includes the proper combination of gallon and quart containers to support a complete 20-hour engine oil service.

Why is HD gear lube included?
Yamalube HD gear lube is formulated to provide strong protection for high-horsepower offshore applications like the F350.

Do I need to replace both lower unit drain gaskets?
Yes. Most lower units use sealing washers at both the drain and vent screws, so replacing both helps ensure a proper seal.