MerCruiser 6.2L MPI Engine with Bravo Sterndrive 300 Hour Maintenance Kit

Mercury Marine MerCruiser 6.2L MPI Engine with Bravo Sterndrive 300 Hour Maintenance Kit

The Mercury Marine part number 8M0147070 is a complete 300-hour maintenance kit for MerCruiser 6.2L MPI engines with Bravo sterndrives (2015 and newer). Packaged as a single, convenient kit, it contains every genuine OEM component required to perform a thorough 300-hour service interval — so you spend less time sourcing parts and more time on the water. Each item is manufactured to Mercury Marine's exacting tolerances, ensuring proper fitment and consistent engine performance after every service.

Mercury maintenance kits feature premium-quality oil and fuel filters with high internal pleat counts for superior filtration and heavy-duty electroplated housings that prevent corrosion. The included seawater pump impeller kit, serpentine belt, thermostat, and spark plugs are all genuine Mercury Precision Parts backed by decades of engineering and manufacturing expertise. After service, oil pressure stabilizes, throttle response sharpens, and the entire powertrain runs more smoothly — whether you operate in freshwater or saltwater environments.

The kit is compatible with a wide range of 6.2L MPI serial number ranges, covering both 300 and 350 horsepower configurations with standard cooling. To complete the full service, Mercury recommends pairing this kit with genuine Mercury 4-Stroke Marine Engine Oil and Mercury Premium Gear Lube (858058K01), sold separately.

Key Features

• Complete 300-hour service kit for MerCruiser 6.2L MPI engines with Bravo sterndrive (2015 and newer)
• Kit contents: oil filter (866340K01), fuel filter (8M0122424), 2x gearcase drain seals (8M0204693), 8x spark plugs (8M0095454), thermostat 60° (8M0089715), thermostat gasket (8M0079167), gasket (8M0204687), serpentine belt (8M0220620), PCV valve (8M2017060), and heavy-duty seawater pump impeller kit (8M0137221)
• Premium oil and fuel filters with high internal pleat counts for superior filtration
• Heavy-duty electroplated filter housings resist corrosion in marine environments
• Compatible with 6.2L MPI 300 and 350 EC configurations (serial numbers 2A456613 and up)
• Suitable for both freshwater and saltwater applications
• Genuine Mercury Marine OEM parts — not aftermarket
• Backed by decades of Mercury engineering, testing, and manufacturing expertise