Housing, Bearing – Fits Yamaha Outboard 225-300HP (Replaces 6P2-45331-00-9S)
Housing, Bearing – Fits Yamaha Outboard 225-300HP (Replaces 6P2-45331-00-9S) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Free standard shipping on all orders under 1 KG
Housing, Bearing – Fits Yamaha Outboard 225-300HP (Replaces 6P2-453...
Product Details
This replacement Housing, Bearing – Fits Yamaha Outboard 225-300HP (Replaces 6P2-45331-00-9S) is designed for a precise fit on Yamaha 4-stroke outboard engines ranging from 225HP to 300HP, including F-series, LF-series, and Z-series models from 2006 to 2018. It serves as a crucial component within the lower casing drive assembly, ensuring smooth driveline operation.
This part is a direct interchange for Yamaha OEM part numbers 6P2-45331-00-94 and its supersession, 6P2-45331-00-9S.
- Manufactured from high-strength alloy steel to meet OEM specifications.
- Installs in the lower casing drive assembly of the outboard's lower unit.
- Engineered for durability in marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By | Notes |
|---|---|---|---|
| Yamaha | 6P2-45331-00-94 | 6P2-45331-00-9S | Supersession |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F225TLR | 225 | 4-Stroke | 2007–2009 | 6P2-45331-00-9S | Lower Casing Drive 1 |
| Yamaha | F250BTUR | 250 | 4-Stroke | 2009, 2008 | 6P2-45331-00-9S | Lower Casing Drive 1 |
| Yamaha | F250BTXR | 250 | 4-Stroke | 2009, 2008 | 6P2-45331-00-9S | Lower Casing Drive 1 |
| Yamaha | F250TUR | 250 | 4-Stroke | 2006–2011 | 6P2-45331-00-9S | Lower Casing Drive 1 F250 |
| Yamaha | F250TXR | 250 | 4-Stroke | 2006–2011 | 6P2-45331-00-9S | Lower Casing Drive 1 F250 |
| Yamaha | F250UA | 250 | 4-Stroke | 2012–2013 | 6P2-45331-00-9S | Lower Casing Drive 1 |
| Yamaha | F250XA | 250 | 4-Stroke | 2012–2018 | 6P2-45331-00-9S | Lower Casing Drive 1 |
| Yamaha | LF250BTUR | 250 | 4-Stroke | 2009, 2008 | 6P2-45331-00-9S | Lower Casing Drive 3 |
| Yamaha | LF250BTXR | 250 | 4-Stroke | 2009, 2008 | 6P2-45331-00-9S | Lower Casing Drive 3 |
| Yamaha | LF250TUR | 250 | 4-Stroke | 2006–2011 | 6P2-45331-00-9S | Lower Casing Drive 3 LF250 |
| Yamaha | LF250TXR | 250 | 4-Stroke | 2006–2011 | 6P2-45331-00-9S | Lower Casing Drive 3 LF250 |
| Yamaha | LF250UA | 250 | 4-Stroke | 2012–2013 | 6P2-45331-00-9S | Lower Casing Drive 3 |
| Yamaha | LF250XA | 250 | 4-Stroke | 2012–2018 | 6P2-45331-00-9S | Lower Casing Drive 3 |
| Yamaha | Z300TUR | 300 | 4-Stroke | 2006 | 6P2-45331-00-9S | Lower Casing Drive 1 Z300 |
| Yamaha | Z300TXR | 300 | 4-Stroke | 2006 | 6P2-45331-00-9S | Lower Casing Drive 1 Z300 |
| Yamaha | LZ300TUR | 300 | 4-Stroke | 2006 | 6P2-45331-00-9S | Lower Casing Drive 3 LZ300 |
| Yamaha | LZ300TXR | 300 | 4-Stroke | 2006 | 6P2-45331-00-9S | Lower Casing Drive 3 LZ300 |
Technical Specs
- Product Type
- Bearing Housing
- Installation
- Lower Casing Drive Assembly
- Housing Material
- Alloy Steel
- Bearing Type
- Ball Bearing
- Product Dimensions
- 7.0" L x 6.5" W x 4.5" H
- Weight
- 0.259 kg (0.57 lbs)
- Specification Met
- OEM
- Other Technical Attributes
- Original Yamaha part 6P2-45331-00-9S for driveline/lower unit
What’s in the Box
- 1 x Housing Bearing (6P2-45331-00-9S)
Installation Notes
- Disconnect the battery and ensure the engine is securely mounted.
- Drain the gearcase lubricant from the lower unit.
- Remove the propeller and unbolt the lower unit (gearcase) from the upper housing.
- Disassemble the lower unit components as required to access the bearing carrier and housing.
- Carefully remove the old bearing housing, taking note of any associated seals or O-rings.
- Clean the mounting surfaces thoroughly, removing any old sealant or corrosion.
- Press the new bearing into the housing if separate, then install the new housing assembly.
- Replace all seals and O-rings, applying marine-grade grease as specified by the service manual.
- Reassemble the lower unit components in reverse order of disassembly.
- Reinstall the lower unit, refilling with fresh gearcase lubricant to the correct level.
- Test for proper gear engagement (forward, neutral, reverse) before starting the engine.
Troubleshooting & FAQ
How can I confirm this part fits my specific Yamaha engine?
The most reliable method is to check your engine's model number and year against the compatibility table provided on this page. If your model is listed, this part is a confirmed fit. Also, cross-reference the OEM part number stamped on your old housing with the numbers listed here.
What are common signs that my bearing housing is failing?
Symptoms of a failing lower unit bearing housing include grinding, whining, or rumbling sounds from the gearcase, excessive vibration felt through the boat, or visible metal shavings in the gear lube when it's changed. In severe cases, you may notice play or binding in the propshaft.
Does this part replace both 6P2-45331-00-94 and 6P2-45331-00-9S?
Yes. The part number 6P2-45331-00-9S is the official supersession for 6P2-45331-00-94. This housing is a direct replacement for both OEM part numbers.
Are any special tools needed for installation?
Installation typically requires standard marine mechanic tools, including a socket set, torque wrench, and screwdrivers. Depending on the specific engine model, you may also need a bearing puller or press to remove the old bearing and install the new one. Always consult a factory service manual for detailed procedures.
When should this bearing housing be replaced?
Unlike routine maintenance items, this housing is typically replaced only when it fails or shows clear signs of wear, such as corrosion, cracks, or damage discovered during other lower unit service. There is no set replacement interval; it's done on an as-needed basis.
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.
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