Keep your V6 3.4L FourStroke engine running smoothly with this comprehensive 300-hour maintenance kit. Specifically designed for Mercury Marine 175HP, 200HP, and 225HP outboard motors, this kit includes all the essential components needed for proper engine care at the 300-hour service interval. The kit contains genuine Quicksilver/Mercury parts (8M0149930) that are precisely engineered to maintain optimal performance and reliability of your marine engine. Regular maintenance using these quality components helps prevent unexpected breakdowns and extends the life of your outboard motor. This complete service kit provides everything needed for routine maintenance, making it convenient to keep your Mercury FourStroke engine in top condition for countless hours on the water.