Mercury 8M0120839 – 300-Hour Maintenance Kit for 25–30 HP EFI Four-Stroke Outboard

The Mercury Precision Parts 300-Hour Maintenance Kit 8M0120839 contains all the genuine parts you need for the complete 300-hour maintenance of Mercury 25–30 hp FourStroke outboards (serial numbers 0R106999 to 1R162636).

With this convenient complete kit, you no longer have to tediously gather individual spare parts – everything important is included in one box.

⚙️ Compatible with:

• Mercury 25–30 hp FourStroke outboards

• Serial numbers 0R106999 – 1R162636

📦 Kit contents:

• Oil filter

• Fuel filter

• Oil drain plug gasket

• Gearcase gaskets

• Thermostat & thermostat gaskets

• 3 spark plugs

• Water pump impeller kit

• Sacrificial anode

This gives you everything you need for a complete 300-hour service in one kit.

💎 Benefits & features:

• Complete service kit for the 300-hour service

• No need for individual orders – everything in one box

• Easy maintenance with standard tools

• Genuine Mercury OEM parts for a perfect fit and maximum longevity

• Optimizes engine performance, reliability, and protection

• Protects your investment and ensures long-lasting enjoyment

🚤 Why genuine Mercury parts?

Mercury Marine produces spare parts to strict OEM specifications to ensure optimal performance, a perfect fit, and maximum service life for Mercury and Mariner outboards as well as MerCruiser sterndrives.