$20.00
OEM Vent Screw Plug 309243 for select Johnson and Evinrude outboard gearcases. Used to close the gearcase vent opening during lower unit service and help maintain a properly sealed gearcase.
Ideal for replacing damaged, corroded, worn, or missing vent plugs. Use with the correct seal or O-ring required for your application.
Ships Immediately
The Vent Screw Plug 309243 is an OEM replacement gearcase vent plug used on select Johnson and Evinrude outboard lower units.
This plug is installed in the gearcase vent opening and is removed during lower unit oil changes to allow air to escape while gear lubricant is added through the fill port. Once service is complete, the vent screw is reinstalled to help close and seal the gearcase.
A damaged, stripped, corroded, or missing vent plug can make routine gearcase service more difficult and may prevent the lower unit from sealing correctly. Replacing a worn vent screw plug is a simple maintenance step that helps keep your gearcase properly serviced and protected.
Product Features
Service Recommendation
Inspect the vent screw plug whenever changing lower unit gear oil. Check the screw head, threads, and sealing surface for corrosion, wear, or damage before reinstalling.
Always use the correct sealing washer, seal, or O-ring required for your specific gearcase. The seal may be sold separately depending on the application.
Because Johnson and Evinrude used several different gearcase configurations, verify your engine model, lower unit style, and original part number before ordering.
Liquid Revolutions carries Johnson and Evinrude outboard parts, gearcase components, lower unit service parts, and hard-to-find components for recreational and performance outboards.
| Weight | 0.2 lbs |
|---|---|
| Dimensions | 1 × 1 × 1 in |
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