Description
SIERRA Johnson / Evinrude Gearcase Oil Seal – 18-2060
Sierra 18-2060 is a replacement OMC-family gearcase oil seal with a 1.000-inch shaft size and 1.375-inch outside diameter. It crosses to Johnson/Evinrude/OMC numbers 321467 and 303804 for lower-unit service.
- Marine gearcase oil seal for Johnson/Evinrude/OMC service.
- Outside diameter: 1.375 in (34.9 mm).
- Shaft diameter: 1.000 in (25.4 mm).
- Width: 0.250 in (6.35 mm).
- Confirm the OEM number and shaft diameter before installation because adjacent gearcase families may use visually similar seals.
For marine drive and engine service parts, fitment can vary by model, serial number, gear ratio, casting and prior service history. Compare the original OEM number and physical configuration before installation, and replace related seals, bearings, locking hardware or cable components when their condition requires it.
Specifications
- Manufacturer: Sierra
- Part Number: 18-2060
- Application: Selected Johnson, Evinrude and OMC gearcase applications using OEM 321467 or 303804.
- Outside Diameter: 34.9 mm (1.375 in)
- Shaft Diameter: 25.4 mm (1.000 in)
- Width: 6.35 mm (0.250 in)
- Part Type: Gearcase oil seal
Interchange / OEM References
- GLM: 86060
- Mallory: 9-76206
- Johnson / Evinrude / OMC: 321467, 303804

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