15-20hp FourStroke 300 Hour Maintenance Kit
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Mercury Marine 15-20hp FourStroke 300 Hour Maintenance Kit
The Mercury Precision Parts 300 Hour Maintenance Kit (Part Number 8M0120838) is a comprehensive service solution designed to keep Mercury 15-20hp FourStroke outboard engines running at peak performance. Compatible with engines bearing serial numbers 0R235168 through 0R833819, this all-in-one kit eliminates the need to source individual components separately, saving time and ensuring every part is a perfect OEM fit.
Mercury maintenance kits feature premium-quality oil and fuel filters engineered with high internal pleat counts for superior filtration efficiency. The filter housings are heavy-duty electroplated to resist corrosion even in demanding saltwater and freshwater marine environments. Every component in this kit is produced to the same rigorous standards applied to Mercury's original factory parts, ensuring the best possible fit, function, and long-term performance.
To complete a full 300-hour service, pair this kit with genuine Mercury 4-Stroke Marine Engine Oil and Mercury Premium Gear Lube (Part Number 858058K01), both sold separately. Mercury parts and accessories are supported by decades of experience in marine engineering and testing, making them the trusted choice for professional technicians and boat owners alike.
Key Features
- Fits Mercury 15-20hp FourStroke outboards with serial numbers 0R235168 through 0R833819
- Contains oil filter, fuel filter, oil drain seal, gearcase seals, thermostat, thermostat gaskets, three spark plugs, water pump impeller kit, and unit anode
- Premium-quality oil and fuel filters with high internal pleat counts for superior filtration
- Heavy-duty electroplated filter housings provide corrosion resistance
- Genuine OEM Mercury Precision Parts — backed by decades of engineering, testing, and manufacturing expertise
- All components in one convenient package for a complete 300-hour service interval
- Compatible gear lube: Mercury Premium Gear Lube 858058K01 (sold separately)
