$7.00
OEM Oil Fill Screw Plug 307551 for select OMC, Johnson and Evinrude outboard gearcases. Used to close and seal the lower unit oil fill or drain port during routine gearcase service.
A good replacement for damaged, worn, corroded, or missing gearcase plugs. Pair with the correct sealing washer or O-ring as required for your application.
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The OEM Oil Fill Screw Plug 307551 is a replacement gearcase plug used on select OMC, Johnson and Evinrude outboard lower units, including the SST45 Racing Gearcase.
This screw plug is used at the gearcase oil fill or drain opening and helps securely close the lower unit after servicing the gear lubricant. A damaged, stripped, corroded, or missing plug can make proper gearcase service difficult and may prevent the lower unit from sealing correctly.
Replacing a worn oil fill screw plug is an important part of maintaining your outboard gearcase and helping protect the internal gears, bearings, and other lower unit components.
Product Features
Service Recommendation
Inspect the oil fill and drain plugs whenever changing lower unit gear oil. If the screw head, threads, or sealing surface shows damage or excessive wear, replacing the plug can help ensure proper service and sealing.
Always install the correct seal, washer, or O-ring required for your specific gearcase. The sealing component may be sold separately depending on the application.
Because Johnson and Evinrude used multiple lower unit configurations over the years, verify your engine model, gearcase 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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