Maintain the integrity of your drive system with Mercury Lower Unit Gear Lube Drain and Fill Hole Screw Seals. These high-quality gaskets are designed to fit 3/8-16 drain and fill screws, preventing gear lube from leaking and water from entering the gearcase. Replacing these seals every time the lubricant is changed is a vital step in protecting your engine from catastrophic failure.
- Fits all MerCruiser engines and most Mercury/Mariner outboards
- Compatible with 3/8-16 drain and fill screws
- Prevents gear lube leaks and damaging water intrusion
- Includes four (4) replacement gaskets
- Not for Verado or outboards of Japanese origin
