75 hp Through 115 hp 1.7L EFI FourStroke SERV KIT-300 HRS (8M0097857)

The 75 hp Through 115 hp 1.7L EFI FourStroke SERV KIT-300 HRS is a complete OEM service kit designed specifically for Mercury 1.7L EFI FourStroke outboards in the 75HP to 115HP range. Built to support the 300-hour maintenance schedule, this kit includes all the critical components required to ensure long-term reliability, strong performance, and protection against wear and failure in demanding marine environments.

Maintaining your outboard at the correct service intervals is vital to prevent costly repairs and ensure smooth operation. This kit removes the guesswork by including all factory-approved parts needed for a thorough 300-hour service. It contains a water pump impeller and housing, oil filter, fuel filter, spark plugs, drain screw gaskets, a thermostat, and the necessary seals and o-rings—all precision-made to Mercury’s original specifications.

At the heart of the kit is the impeller and pump assembly, which keeps your engine cool by ensuring steady water flow through the cooling system. At 300 hours, this component should be replaced to prevent reduced flow and overheating. The included thermostat helps regulate consistent engine temperature, promoting efficient combustion and engine protection.

The oil and fuel filters are essential to trapping contaminants and maintaining clean oil circulation and fuel delivery. This helps reduce internal wear and ensures your outboard runs with peak efficiency. The spark plugs support strong, consistent ignition, enhancing throttle response, fuel economy, and cold starts.

The product is ideal for boat owners and marine technicians alike. Whether you’re performing the service yourself or having it done professionally, this all-in-one package saves time, ensures no part is overlooked, and maintains the integrity of your engine. Every part in the kit is built to endure harsh marine environments, offering the reliability and durability Mercury owners expect.

Routine 300-hour servicing not only extends engine life but also keeps your outboard running smoother and more efficiently. Using OEM parts protects your warranty and ensures continued performance, no matter how often you’re on the water.

For serious boaters who value performance and dependability, the 75 hp Through 115 hp 1.7L EFI FourStroke SERV KIT-300 HRS is the smart, factory-backed choice for scheduled outboard maintenance.