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Mercury | 300 Hour Service Kit | 150 EFI 4-Stroke | 8M0094233

The Mercury 150 EFI 4-Stroke 300 Hour Service Maintenance Kit – 8M0094233 provides the essential components required to complete the recommended 300-hour maintenance interval on Mercury 150 HP EFI four-stroke outboard engines. This comprehensive kit includes the oils, filtration components, ignition parts, cooling system components, and wear items needed to maintain engine performance and reliability.

The 300-hour service is one of the most important maintenance milestones for Mercury outboards. Replacing the spark plugs, thermostat components, fuel filtration parts, and accessory belt helps maintain cooling efficiency, proper fuel delivery, and ignition performance while protecting critical engine components. This kit consolidates the necessary maintenance parts into one convenient package to simplify scheduled service.

What’s Included in This Kit

• 1 x Gallon 25W-40 Engine Oil
• 3 x Quarts 25W-40 Engine Oil
• 1 x Quart Gear Lube
• 1 x Oil Filter
• 1 x High Pressure Fuel Filter
• 2 x Gearcase Drain Seals
• 4 x Spark Plugs
• 1 x Thermostat Kit
• 1 x Belt
• 4 x Anodes

Benefits of the 300 Hour Service

• Maintain proper engine lubrication with fresh 25W-40 engine oil.
• Restore ignition performance with replacement spark plugs.
• Ensure clean fuel delivery with a new high pressure fuel filter.
• Maintain cooling system efficiency with a new thermostat kit.
• Protect internal engine components with a replacement oil filter.
• Maintain accessory drive reliability with a new engine belt.
• Reduce corrosion with replacement anodes.
• Protect the gearcase with fresh gear lube and new drain seals.

Engine Compatibility

• Mercury 150 HP EFI 4-Stroke Outboards

Always verify your Mercury outboard model and serial number before ordering to ensure compatibility with your engine.

• Engine Application
  • 150 HP EFI SeaPro - 2B139139 & Up
  • 135 HP EFI - 2B131942 & Up
  • 105 HP EFI Jet - 3B672358 & Up
  • 150 HP EFI - 1B905505 & Up