U-Joint Shaft Bearing – Fits Johnson/Evinrude Outboard 1986–1993 (Replaces OMC 983878)
U-Joint Shaft Bearing – Fits Johnson/Evinrude Outboard 1986–1993 (Replaces OMC 983878) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
Worry-free returns
You may return most new, unopened items within 7 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
U-Joint Shaft Bearing – Fits Johnson/Evinrude Outboard 1986–1993 (R...
Product Details
This aftermarket U-Joint Shaft Bearing is designed to fit a range of Johnson and Evinrude outboard engines manufactured between 1986 and 1993. It serves as a crucial component for the drive system, ensuring smooth rotation and power transmission.
It is a direct replacement for multiple OEM and aftermarket part numbers, including OMC/BRP, Sierra, GLM, and OBR Red Rhino equivalents.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| OMC | 983878 | 778096 |
| Evinrude Johnson OMC BRP | 778096 | |
| Sierra Marine | 18-1171 | |
| OBR Red Rhino | R-12649 | |
| GLM | 21543 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This U-joint shaft bearing is compatible with various horsepower models from 1986–1993. Please verify your specific part number before ordering.
| Brand | Years | Notes |
|---|---|---|
| Johnson/Evinrude | 1986–1993 | Compatible with various outboard models. Specific HP information is needed for precise compatibility. |
Technical Specs
- Product Type
- Bearing, U-joint Shaft
- Housing Color
- Silver
- Dimensions
- 1.31" L x 3.44" W x 3.5" H
- Weight
- 0.263 kg (0.58 lb)
- Warranty
- 30 days
What’s in the Box
- 1x U-Joint Shaft Bearing
Installation Notes
- Disconnect the battery and ensure the engine is stable and secured.
- Access the U-joint assembly according to your service manual. This may require removing the lower unit or drive.
- Carefully remove any retaining clips or bolts, and press out the old bearing using appropriate tools.
- Thoroughly clean the bearing housing and shaft, removing any old grease, rust, or debris.
- Apply a liberal amount of marine-grade grease to the new bearing and inside the housing.
- Gently press the new bearing into place, ensuring it is seated evenly and squarely. Do not use a hammer directly on the bearing.
- Reinstall any clips, seals, and other components in the reverse order of removal.
- Rotate the shaft by hand to confirm smooth, resistance-free movement before reattaching the drive unit.
Troubleshooting & FAQ
What are the signs of a failing U-joint shaft bearing?
Common signs include excessive vibration felt through the boat, unusual grinding or clicking noises from the drive unit, and visible play or roughness when inspecting the shaft. A worn bearing can lead to further driveline damage if not addressed.
Will this bearing fit an OMC Sterndrive model?
While some sources suggest this part may be compatible with certain OMC Sterndrive models, its primary verified application is for 1986–1993 Johnson and Evinrude outboards. We strongly recommend cross-referencing your specific OEM part number to confirm fitment for any sterndrive applications.
Does this bearing come pre-greased?
No, it is critical to lubricate this bearing thoroughly with a high-quality, water-resistant marine grease during installation. This protects against corrosion and ensures smooth operation.
How often should this bearing be inspected?
It is good practice to inspect the U-joint assembly annually or whenever the drive unit is removed for other service. Replace the bearing if you detect any noise, roughness, or play.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
Payment & Security
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