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Yamaha | 20 Hour Service Kit | F25B | 2012-2018

Maintain reliable performance in your Yamaha F25B with this complete 20 hour service maintenance kit designed for outboards produced from 2012 through 2018. Built around Yamalube 10W-30 FC-W engine oil, this kit includes the essential components required to complete your scheduled break-in oil and lower unit service.

The 20 hour service is a critical early maintenance milestone. Replacing engine oil and the oil filter helps remove break-in contaminants, while servicing the lower unit with fresh gear lube and new drain gaskets helps ensure proper lubrication and sealing. Performing this service on time supports long-term engine durability and smooth operation.

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What’s Included in This Kit

• 2 x LUB-10W30-FC-12 – Yamalube 10W-30 Outboard Mineral 4M FC-W Engine Oil (Quart)
• 1 x 5GH-13440-61-00 – Yamaha Outboard Oil Filter
• 1 x 61N-24563-10-00 – Yamaha Primary Fuel Filter Element
• 1 x ACC-GEARL-UB-QT – Yamalube Marine Gear Case Lube Oil (32 oz.)
• 2 x 90430-08003-00 – Yamaha Outboard Lower Unit Drain Gaskets
• 1 x 90430-14M09-00 – Yamaha Oil Plug Drain Gasket
• 1 x ACC-PUMP0-00-QT – Marine Gear Case Lube Oil Quart Pump

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Why Perform the 20 Hour Service?

• Engine protection: Fresh oil and filter help remove early wear particles.
• Fuel system reliability: A new primary fuel filter supports clean, consistent fuel delivery.
• Lower unit protection: Fresh gear lube helps maintain smooth shifting and gear longevity.
• Leak prevention: Replacing drain gaskets helps ensure proper sealing after service.
• Convenient all-in-one kit: Everything needed for scheduled maintenance in one package.

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Service Notes

• Designed for Yamaha F25B outboards produced from 2012-2018.
• Always replace drain gaskets during service to help prevent leaks.
• Use the included pump to simplify lower unit gearcase filling.
• Dispose of used oil and gear lube according to local environmental regulations.

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FAQ

Is this kit specific to the F25B (2012-2018)?
Yes. This configuration is designed specifically for Yamaha F25B outboards within those production years.

Does this include the correct oil quantity?
Yes. Two quarts of Yamalube 10W-30 meet the standard oil capacity requirements for this model.