The Vent Plug (889725047) helps maintain the integrity of your gearcase by creating a secure seal during normal operation and routine servicing. This genuine Mercury vent plug helps prevent gear lubricant leaks while reducing the risk of water entering the gearcase, protecting critical internal components.
If your existing vent plug becomes worn, damaged, or corroded, replacing it with a genuine Mercury part helps restore a reliable seal and supports long-term gearcase performance.
Designed for a Precise Fit
Mercury manufactures the Vent Plug (889725047) to original factory specifications for an accurate fit in compatible gearcases. It installs easily and seals correctly, making gear lube changes and routine maintenance quick and straightforward.
Using the correct vent plug also helps maintain proper lubrication, minimise contamination, and reduce the risk of unnecessary wear on internal components.
Genuine OEM Quality
Choose genuine Mercury parts for dependable quality and lasting reliability. Mercury builds the Vent Plug (889725047) from durable materials that withstand vibration, corrosion, and harsh marine conditions.
Whether you’re replacing a damaged vent plug or carrying out scheduled maintenance, this genuine part helps keep your gearcase protected and your engine performing at its best.
Why Choose the Vent Plug (889725047)?
- Genuine OEM Mercury replacement part
- Creates a secure seal for the gearcase
- Helps prevent oil leaks and water intrusion
- Manufactured to original factory specifications
- Delivers a precise fit for easy installation
- Durable construction for marine environments
- Ideal for servicing, repairs, and routine maintenance
Before ordering, please check your engine model and serial number to confirm compatibility.
FILTER-FUEL QS (866594Q01) - Mercury 




