The Quicksilver 35-840634K01 oil filter is engineered specifically for Mercury Racing high-performance inboard/sterndrive engines. This genuine filter ensures that even under extreme RPM and heavy loads, your engine stays protected and runs smoothly without oil contamination. With Quicksilver – Mercury Marine’s parts division boasting over 65 years of experience – you get a product that meets the highest manufacturer standards. This filter is the direct OEM replacement used in Mercury Racing SCi series engines (models such as 600SCi, 700SCi, 850SCi, 1075SCi, 1200SCi, etc.), guaranteeing a perfect fit and seal.
The filter’s design includes an anti-drainback valve which prevents oil from draining out of the filter when the engine is off. As a result, every start-up is protected with immediate lubrication, avoiding the metal-on-metal wear of dry starts – a critical advantage for high-performance engines. Inside, the filter uses a special M-pleated paper media, increasing surface area to capture fine contaminants and keep oil flowing clean to bearings and cylinders. The heavy-duty metal canister features reinforced, thick walls and a corrosion-resistant coating to withstand intense vibration and the harsh saltwater environment – perfect for marine racing applications.
By choosing this genuine Quicksilver oil filter, you are ensuring maximum performance and longevity for your Mercury Racing engine. It is recommended to replace the oil filter every 50-100 running hours or at least once per year (whichever comes first) on these high-output motors to maintain optimal lubrication. Using original filters and the proper high-quality engine oil (e.g., Mercury Racing or Quicksilver oil) provides reliable protection for your investment.
- Application: Ideal for powerful Mercury Racing (MerCruiser) gasoline engines roughly 600 HP to 1200+ HP, commonly found in speedboats, race powerboats, and other high-performance vessels.
- Recommendation: Change the filter regularly and check engine oil before extreme operation to ensure your engine performs at its best on every run.
- OEM Quality: This is an original Mercury/Quicksilver part that meets or exceeds Mercury Racing specifications – using OEM parts preserves your engine’s warranty and reliability.




