Tapered Roller Bearing – Fits Yamaha Outboard Motors 70-90 HP (Replaces 93332-000U3-00)
Tapered Roller Bearing – Fits Yamaha Outboard Motors 70-90 HP (Replaces 93332-000U3-00) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
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Tapered Roller Bearing – Fits Yamaha Outboard Motors 70-90 HP (Repl...
Product Details
This aftermarket Tapered Roller Bearing is designed for the lower unit and upper drive shaft of Yamaha outboard motors ranging from 70-90 HP (2-Stroke & 4-Stroke), covering model years 1985–2008. It provides a reliable, direct-fit solution for maintaining your engine's drivetrain.
It serves as a direct replacement for Yamaha OEM part 93332-000U3-00 and cross-references with other interchange parts, including Timken 44649/44610 and Red Rhino R-44649.
- Installs in the lower unit as an upper or lower drive shaft bearing.
- Made from high-strength steel to meet or exceed OEM specifications.
- Engineered for the demanding marine environment.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 93332-000U3-00 | OEM Reference |
| Timken | 44649/44610 | Direct Interchange |
| Red Rhino | R-44649 | Direct Interchange |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | FT50G | 50 | 4-Stroke | 93332-000U3-00 | Drive Shaft Bearing | |
| Yamaha | Various | 70-90 | 2-Stroke & 4-Stroke | 1985–2008 | 93332-000U3-00 | Upper Drive Shaft Bearing |
Technical Specs
- Product Type
- Tapered Roller Bearing
- Installation Location
- Lower Unit / Drive Shaft Bearing
- Housing Material
- Steel
- Product Dimensions
- 5.0" H x 6.0" W x 6.0" L
- Warranty
- 1 Year
- Country of Origin (OEM)
- Japan
What’s in the Box
- 1 x Tapered Roller Bearing (Replaces 93332-000U3-00)
Installation Notes
Professional installation is recommended. The general steps below are for reference only.
- Ensure the engine is off and the battery is disconnected.
- Drain the lower unit gear lube completely.
- Remove the propeller assembly.
- Unbolt and carefully lower the gearcase (lower unit) from the outboard.
- Disassemble the lower unit to access the vertical drive shaft.
- Use a bearing puller and press to remove the old bearing from its housing.
- Thoroughly clean the shaft and bearing seat, checking for any wear or damage.
- Press the new bearing into position, ensuring it is correctly aligned and fully seated.
- Reassemble the lower unit components in reverse order of disassembly.
- Reinstall the lower unit, refill with fresh marine-grade gear lube to the proper level, and reinstall the propeller.
Troubleshooting & FAQ
How do I know if this bearing fits my specific Yamaha model?
This bearing is designed for most 70–90 HP Yamaha outboards from 1985–2008 and the FT50G model. Always confirm that your engine's required OEM part number matches 93332-000U3-00 by checking your service manual or original part.
What are the signs of a failing drive shaft bearing?
Common symptoms include a grinding, whining, or rumbling noise from the lower unit that changes with engine RPM. You may also feel excessive vibration or discover metal shavings in the gear lube during a change.
How often should this bearing be replaced?
There is no fixed replacement interval. This bearing should be inspected during any routine lower unit service (e.g., water pump replacement) and replaced if you find any signs of pitting, corrosion, noise, or excessive play.
Is this an upper or lower drive shaft bearing?
This part is used in different positions depending on the engine model. It is listed as an "Upper Drive Shaft Bearing" for 70-90 HP models and simply a "Drive Shaft Bearing" for the FT50G. Consult your specific engine's parts diagram to confirm its location.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, where it is batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
This product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their 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.
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