Pinion Bearing – Fits OMC Sterndrive Stringer (Replaces OMC 379585)
Pinion Bearing – Fits OMC Sterndrive Stringer (Replaces OMC 379585) 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
Pinion Bearing – Fits OMC Sterndrive Stringer (Replaces OMC 379585)
Product Details
This Pinion Bearing – Fits OMC Sterndrive Stringer is specifically designed for compatibility with OMC Stringer sterndrives manufactured from 1973 through 1985. It functions as a high-quality replacement for the original equipment manufacturer (OEM) part, ensuring reliable performance in your marine drive system.
This component provides a direct interchange with Red Rhino part number 379585 and GLM part number 21545.
- Installation: This bearing is installed on top of the bearing housing located within the upper gear housing.
- Warranty: Comes with the comprehensive OBR/Red Rhino Warranty.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket brands.
| Brand | Part Number |
|---|---|
| OMC | 379585 |
| Red Rhino | 379585 |
| GLM | 21545 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Years | OEM Part No. | Notes |
|---|---|---|---|---|
| OMC | Stringer Sterndrives | 1973–1985 | 379585 | Direct Replacement |
Technical Specs
- Product Type
- Pinion Bearing
- Installation Location
- On top of the bearing housing that resides in the upper gear housing
- Warranty
- OBR/Red Rhino Warranty
- Product Dimensions
- 9.5" L x 11.0" W x 7.0" H
What’s in the Box
- 1 x Pinion Bearing
Installation Notes
- Refer to your official service manual. Disconnect the battery and safely secure the vessel and sterndrive.
- Disassemble the upper gear housing components as required to gain access to the old pinion bearing.
- Carefully extract the old bearing from its position on top of the bearing housing, noting its orientation.
- Thoroughly clean the housing and surrounding surfaces, removing any old lubricant, sealant, or debris.
- Position the new pinion bearing onto the housing, confirming it is correctly seated and aligned.
- Reassemble the sterndrive, ensuring all components are installed in the reverse order of disassembly. Torque all fasteners to the manufacturer’s specified values.
Troubleshooting & FAQ
How do I know if this pinion bearing fits my OMC Sterndrive?
This bearing is a direct replacement for OMC part number 379585 and is confirmed to fit OMC Stringer models from 1973 through 1985. To ensure compatibility, please verify your original part number and your sterndrive's model year before ordering.
What are the common signs of a failing pinion bearing?
Symptoms of a worn or failed pinion bearing include grinding, whining, or humming noises coming from the upper unit of the sterndrive, especially when in gear. You may also find excessive metal shavings in the gear lube during a fluid change, which indicates internal component wear.
Can I install this bearing myself?
While DIY installation is possible for individuals with advanced mechanical skills and the correct tools, professional installation is strongly recommended. Proper bearing installation requires knowledge of preload settings and alignment procedures critical for the sterndrive's longevity and performance.
What is the difference between this aftermarket part and an OEM part?
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.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free to most locations, with expedited options available at checkout where applicable.
What is the warranty and return policy?
This part is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in their original condition. See our policy page or reach out for instructions.
Safety & Important Info
- Verify images and specifications against 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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