MerCruiser 3.0L Carbureted Engine 300 Hour Maintenance Kit

Mercury Marine MerCruiser 3.0L Carbureted Engine 300 Hour Maintenance Kit

The Mercury Precision Parts 300 Hour Maintenance Kit (8M0147061) is designed specifically for MerCruiser 3.0L carbureted engines manufactured by General Motors (model year 2000 and newer) with standard cooling. This comprehensive kit bundles all of the key service replacement components required at the 300-hour interval into one convenient package, helping you maintain optimal engine performance and reliability using genuine Mercury components.

Mercury maintenance kits feature premium-quality oil and fuel filters engineered with high internal pleat counts for superior filtration efficiency. Heavy-duty electroplated filter housings are designed to resist corrosion in demanding marine environments. Every component in this kit is backed by Mercury's decades of experience in engineering, testing, and manufacturing to ensure the best possible fit, function, and performance for your MerCruiser engine.

To complete your full 300-hour service routine, pair this kit with genuine Mercury 4-Stroke Marine Engine Oil and Mercury Premium Gear Lube (858058K01), both sold separately. Always follow your owner's manual for the recommended 300-hour service procedure and torque specifications. Confirm that your engine is a MerCruiser 3.0L carbureted GM model year 2000 or newer with standard cooling before ordering.

Key Features

• Fits MerCruiser 3.0L carbureted engines made by General Motors (2000 and newer) with standard cooling
• Includes oil filter, fuel filters, gearcase drain seals, spark plugs, thermostat, thermostat gasket, and V-belts
• PCV valve and IAC filter also included where applicable
• Premium oil and fuel filters with high internal pleat counts for superior filtration
• Heavy-duty electroplated filter housings to resist corrosion
• Genuine Mercury Precision Parts — backed by decades of engineering and testing
• All essential 300-hour interval components in one convenient kit
• Compatible Mercury 4-Stroke Marine Engine Oil and Mercury Premium Gear Lube (858058K01) sold separately