Mercury Precision Parts 300-Hour Maintenance Kit 8M0207808 – For 5.7L V10 350–425 HP Verado & 350 HP SeaPro Outboards (6.44" Gearcase)

The Mercury Precision Parts 300-Hour Maintenance Kit (8M0207808) contains all the necessary genuine parts to properly perform the 300-hour inspection on your Mercury 5.7L V10 Verado 350–425 HP or Mercury SeaPro 350 HP outboard with a 6.44-inch gearcase (serial number 3B266064 and higher).

This high-quality genuine maintenance kit was manufactured by Mercury Marine to strict OEM (Original Equipment Manufacturer) specifications to maintain the performance, efficiency, and reliability of your engine over the long term.

With this convenient complete kit, you save time, avoid incorrect parts, and ensure that your outboard is always maintained with optimally matched components.

⚙️ Included Components:

• Oil filter – ensures clean lubrication and optimal engine performance

• Fuel filter assembly – protects the injection system from dirt and deposits

• Thermostat assembly & thermostat – reliably regulate engine temperature

• Drain plug gasket – prevents oil loss and leaks

• Spark plugs – guarantee reliable ignition and efficient combustion

• Impeller repair kit – ensures stable engine cooling

• Drive belt – ensures reliable power transmission

• Aluminum anode kit – effectively protects your drive system from galvanic corrosion

• Clamp – for secure hold and vibration-free mounting

💡 Benefits:

• Genuine Mercury OEM quality – perfect fit & proven reliability

• Contains all recommended components for the 300-hour service

• Designed for maximum engine performance and service life

• Convenient complete package – no more tedious searching for individual parts

• Ideal for workshops, professional service centers or boat owners who value quality

Mercury Marine has stood for innovation, precision, and premium quality for decades. This maintenance kit ensures that your outboard can always deliver its full performance – whether cruising, fishing, or in commercial use.

⚙️ Compatibility:

• Engines: Mercury 5.7L V10 Verado 350–425 HP, Mercury SeaPro 350 HP

• Gearcase: 6.44 inches

• Serial numbers: 3B266064 and higher

📦 Package Contents:

• Oil filter

• Fuel filter assembly

• Thermostat assembly + thermostat

• Drain plug gasket

• Spark plugs

• Impeller repair kit

• Drive belt

• Aluminum anode kit

• Clamp