Housing Bearing – Fits Yamaha 15HP-20HP 4-Stroke (Replaces 69G-45331-00-5B)
Housing Bearing – Fits Yamaha 15HP-20HP 4-Stroke (Replaces 69G-45331-00-5B) is backordered and will ship as soon as it is back in stock.
Worry-free returns
Worry-free returns
Shop with confidence. If you’re not completely satisfied, eligible items may be returned within the return window, provided they are unused and in original packaging.
If the return is due to our error or a defective item, we’ll make it right.
Please contact us before returning any item.
Delivery and Shipping
Delivery and Shipping
Orders are typically processed within 1–2 business days.
U.S. orders usually arrive within 6–15 days, depending on stock location and destination.
International delivery times may vary due to customs processing.
Tracking information will be provided once your order ships.
Housing Bearing – Fits Yamaha 15HP-20HP 4-Stroke (Replaces 69G-45331-00-5B) is backordered and will ship as soon as it is back in stock.
Product Details
This aftermarket Lower Unit Housing Bearing is designed for Yamaha F15 and F20 4-Stroke outboards (2006 and later models) and compatible Parsun F20 4-Stroke engines. It is a crucial component located in the lower casing cap of the gearcase.
It serves as a direct interchange for Yamaha part numbers 69G-45331-00-5B, 69G-45331-01-5B, 69G-45331-01-CA, and Parsun F20-04010001.
- Installs in the lower casing cap of the gearcase.
- Constructed from high-strength aluminum alloy.
- Features a pre-installed, integrated bearing for simplified installation.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 69G-45331-00-5B | Original part, superseded by 69G-45331-01-5B and 69G-45331-01-CA. |
| Yamaha | 69G-45331-01-5B | Direct replacement / superseded part number. |
| Yamaha | 69G-45331-01-CA | Direct replacement / superseded part number. |
| Parsun | F20-04010001 | Compatible aftermarket replacement. |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha applications, this part fits select F15 and F20 horsepower models manufactured in 2006 and newer.
For Parsun applications, this part is a compatible replacement for the F20 model.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F15 | 15 | 4-Stroke | 2006 and later | 69G-45331-00-5B | Superseded by 69G-45331-01-5B, 69G-45331-01-CA |
| Yamaha | F20 | 20 | 4-Stroke | 2006 and later | 69G-45331-00-5B | Superseded by 69G-45331-01-5B, 69G-45331-01-CA |
| Parsun | F20 | 20 | 4-Stroke | F20-04010001 | Compatible replacement |
Technical Specs
- Product Type
- Lower Unit Housing Bearing
- Installation Location
- Lower Casing Cap
- Housing Material
- Aluminum Alloy
- Housing Color
- Silver (Unfinished Aluminum)
- Weight
- 80g (0.18 lb)
- Product Dimensions
- 16.0cm (L) x 12.5cm (W) x 12.0cm (H)
- Other Attributes
- Housing with integrated bearing
What’s in the Box
- 1 x Housing Bearing Assembly (Replaces 69G-45331-00-5B/69G-45331-01-5B/69G-45331-01-CA)
Installation Notes
- Disconnect the spark plug wires and battery for safety.
- Drain the gearcase oil into a suitable container.
- Remove the propeller assembly.
- Unbolt and carefully lower the entire gearcase (lower unit) from the outboard's midsection.
- Identify and remove the lower casing cap bolts to access the bearing housing.
- Extract the old housing bearing. This may require a puller tool depending on the fit.
- Thoroughly clean the mounting surface inside the gearcase, removing any sealant, corrosion, or debris.
- Gently press the new housing bearing into position, ensuring it is fully and evenly seated.
- Apply new gaskets or manufacturer-recommended sealant before reinstalling the casing cap.
- Tighten the casing cap bolts to the torque specifications found in your engine's service manual.
- Reattach the lower unit to the midsection, reinstall the propeller, and reconnect all previous linkages.
- Refill the gearcase with the correct grade and quantity of marine gear lubricant before operation.
Troubleshooting & FAQ
How can I confirm this part fits my specific engine model?
This housing bearing is designed for Yamaha F15 & F20 4-Stroke models from 2006 onwards and compatible Parsun F20 engines. The most reliable method of confirming fitment is to match your existing part's number to one of the cross-reference numbers: 69G-45331-00-5B, 69G-45331-01-5B, 69G-45331-01-CA, or F20-04010001.
What are the signs of a failing lower unit housing bearing?
Common symptoms include a grinding or whining noise from the lower unit (especially when in gear), excessive vibration, or metal shavings found in the gear lube during an oil change. A worn bearing can also lead to gear damage if not replaced.
Can I replace just the bearing instead of the entire housing?
This part is sold as a complete assembly with the bearing pre-pressed into the aluminum housing. Attempting to press out the old bearing and install a new one into the existing housing is not recommended, as it can damage the housing and lead to improper fit or alignment.
Is this an identical copy of the genuine Yamaha part?
As an aftermarket part, it is engineered to meet or exceed OEM specifications for fit, form, and function using comparable materials (aluminum alloy). However, it is not a genuine Yamaha-branded component. It provides a reliable, cost-effective alternative.
What is the recommended replacement interval for this part?
There is no fixed replacement interval. This component should be inspected for play, noise, or corrosion whenever the lower unit is serviced or if symptoms of failure appear. It is typically replaced on a conditional basis rather than a schedule.
Are any special tools required for installation?
Basic mechanic's tools are required to remove the lower unit. Depending on how tightly the old bearing is seated, you may need a bearing puller for removal and a press or appropriate drivers to install the new one without damaging it. Always refer to a service manual for detailed procedures.
Is this an OEM or aftermarket part?
This listing is for an aftermarket replacement part, not a genuine OEM component. It is manufactured in an ISO 9001 certified facility and built to meet or exceed OEM-level specifications with comparable materials, undergoing batch testing to ensure quality and consistency.
What are the shipping time and cost?
We offer fast worldwide shipping, with typical transit times of 5–15 days for most regions. Standard shipping is free on all 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 when used under normal operating conditions. If you encounter an issue, please contact our support team with your order number. We accept returns for unused items in their original packaging within our standard return window. Please see our full policy page or contact us for details.
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
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
