300 Hour Service Kit – V8 (4.6L) Verado/ Verado SeaPro FourStroke (8M0149932)

The 300 Hour Service Kit – V8 (4.6L) Verado/ Verado SeaPro FourStroke is a genuine OEM maintenance kit designed specifically for Mercury’s 4.6L V8 Verado and SeaPro FourStroke outboard engines. Built to meet Mercury Marine’s exacting standards, this kit provides all the critical components required to perform a full 300-hour service—keeping your powerful V8 running reliably, efficiently, and at peak performance.

Mercury’s V8 Verado and SeaPro engines are known for their smooth, quiet operation, strong mid-range torque, and exceptional fuel economy. These engines are engineered for serious offshore and commercial applications, so regular maintenance is key to protecting your investment and ensuring dependable performance across every journey. The kit delivers all the factory-recommended parts in one convenient, cost-effective package.

This comprehensive kit includes a premium-quality water pump impeller and housing to support optimal engine cooling and prevent overheating. Also included are an oil filter, fuel filter, gear lube drain plug seals, air filter, and spark plugs—plus all the marine-grade seals, gaskets, and o-rings needed to complete your 300-hour service properly.

The oil and fuel filters work together to protect your engine from contaminants, ensuring clean oil circulation and precise fuel delivery. The air filter promotes efficient combustion by providing a clean air supply, which is critical for maintaining performance and fuel economy. The included spark plugs are engineered for consistent ignition, supporting fast starts and smooth operation under load.

The impeller and cooling system components are designed to withstand high operating demands and saltwater environments, ensuring your engine remains within the optimal temperature range. All included seals and gaskets are made from corrosion-resistant materials, offering long-lasting leak protection and engine reliability.

Whether you’re a commercial operator, offshore angler, or serious boater, this kit provides everything needed to service your engine according to Mercury’s 300-hour maintenance schedule. The 300 Hour Service Kit – V8 (4.6L) Verado/ Verado SeaPro FourStroke ensures you’re using only genuine Mercury parts—preserving engine integrity, maintaining warranty coverage, and delivering confidence on the water.

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