Forward Gear Bearing – Fits Yamaha Outboard 50-100HP (93332-000U5-00, 93332-000W7-00)
Forward Gear Bearing – Fits Yamaha Outboard 50-100HP (93332-000U5-00, 93332-000W7-00) 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).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Forward Gear Bearing – Fits Yamaha Outboard 50-100HP (93332-000U5-0...
Product Details
This Forward Gear Bearing – Fits Yamaha Outboard 50-100HP is an essential component for the lower unit gear case, ensuring smooth operation of the forward gear. It is designed for a wide range of Yamaha engines, including 2-Stroke models from 60HP to 90HP (1984–2009) and 4-Stroke models from 50HP to 100HP (1996–2017).
This part serves as a direct replacement for Yamaha OEM part numbers 93332-000U5-00, 93332-000W7-00, and 93332-000UD-00.
- Installs in the lower unit gear case.
- Engineered with a durable metal housing for longevity.
- Functions as the outer bearing for the forward gear.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Yamaha | 93332-000U5-00 | 93332-000W7-00 | |
| Yamaha | 93332-000W7-00 | Current part number. | |
| Yamaha | 93332-000UD-00 | Alternative interchange. |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This bearing fits a wide range of Yamaha 2-stroke and 4-stroke outboard engines. Please verify your specific model and year before ordering.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | Outboard | 60 | 2-Stroke | 1991–2005 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
| Yamaha | Outboard | 70 | 2-Stroke | 1984–2009 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
| Yamaha | Outboard | 90 | 2-Stroke | 1984–2009 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
| Yamaha | C75 | 75 | 2-Stroke | 1994–1998 | 93332-000U5-00/93332-000W7-00 | Commercial model, superseded by 93332-000W7-00 |
| Yamaha | C85 | 85 | 2-Stroke | 1989–1999 | 93332-000U5-00/93332-000W7-00 | Commercial model, superseded by 93332-000W7-00 |
| Yamaha | F50 | 50 | 4-Stroke | 1996–2003 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
| Yamaha | F75 | 75 | 4-Stroke | 2003–2017 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
| Yamaha | F80 | 80 | 4-Stroke | 1999–2003 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
| Yamaha | F90 | 90 | 4-Stroke | 2003–2017 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
| Yamaha | F100 | 100 | 4-Stroke | 1999–2003 | 93332-000U5-00/93332-000W7-00 | Superseded by 93332-000W7-00 |
Technical Specs
- Product Type
- Outer Forward Gear Bearing
- Installation
- Lower Unit / Gear Case
- Housing Material
- Metal
- Housing Color
- Silver/Metallic
- Dimensions
- 3.5" H x 9.0" W x 9.0" L
- Fitting Type
- Ball Bearing
- Other Technical Attributes
- For Forward Gear in Lower Unit
What’s in the Box
- 1 x Bearing (93332-000U5-00/93332-000W7-00)
Installation Notes
- Drain the gear lube from the lower unit completely.
- Remove the propeller and any associated hardware.
- Unbolt and carefully lower the gear case (lower unit) from the outboard midsection.
- Disassemble the lower unit to access the forward gear and its bearings. This may require specialized tools.
- Remove the old forward gear outer bearing and clean the housing surface.
- Press the new bearing into place, ensuring it is properly seated.
- Reassemble the gear case components, using new seals and gaskets as needed.
- Re-install the lower unit to the outboard, torquing bolts to manufacturer specifications.
- Refill the gear case with the correct type and amount of marine gear lubricant before operation.
Troubleshooting & FAQ
How do I know if this bearing fits my Yamaha outboard?
The most reliable method is to check the compatibility table on this page. Match your engine's model, horsepower, and year range. You can also cross-reference your existing bearing's part number with the numbers listed in our Part Number Matrix.
What are the signs of a failing forward gear bearing?
Common symptoms include a grinding or whining noise from the lower unit (especially when in forward gear), excessive metal shavings on the magnetic drain plug, or difficulty shifting. In severe cases, it can lead to catastrophic gear failure.
Can a bad forward gear bearing cause shifting problems?
Yes. A worn or damaged bearing can create excess play in the gear assembly, leading to rough shifting, gear slippage, or an inability to engage forward gear properly.
When should this bearing be inspected or replaced?
The bearing should be inspected any time the lower unit is disassembled for other service (e.g., water pump replacement). It should be replaced immediately if you notice any signs of failure or as part of a complete lower unit rebuild.
Is this the only part I need for the replacement?
This listing is for the bearing only. A complete installation typically requires new seals, o-rings, and gaskets for the lower unit. We recommend consulting a service manual for a full list of required parts for your specific engine model.
What is the difference between this aftermarket part and an OEM part?
This is an aftermarket replacement part, not an original equipment manufacturer (OEM) component. It has been engineered to meet or exceed OEM specifications for fit, form, and function, using comparable materials. It is manufactured in an ISO 9002 certified facility and is batch-inspected to ensure quality and performance, offering a reliable alternative at a better value.
How fast is shipping and what does it cost?
We ship worldwide quickly—typical transit is 5–15 days for most regions. Standard shipping is free for most orders. Expedited shipping options, if available for your location, will be presented at checkout.
What is the warranty and return policy?
This product is covered by a 1-year warranty against manufacturing defects under normal use conditions. If you encounter an issue, please contact our support team with your order number. Returns are accepted within our standard return window for unused items in their original packaging. Please see our full policy page or contact us for detailed instructions.
Safety & Important Info
- Verify images and specifications against your original part before purchasing. If anything differs—even if your model is listed as compatible—do not purchase.
- This is an aftermarket replacement component, not an OEM part.
- Professional installation is highly recommended for safety and optimal 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 quality control.
Payment & Security
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