Propeller Shaft Bearing Housing Spanner Nut – Fits Yamaha 150HP 175HP 200HP 225HP (Replaces 6G5-45384-00, 6G5-45384-01, 6G5-45384-02)
Propeller Shaft Bearing Housing Spanner Nut – Fits Yamaha 150HP 175HP 200HP 225HP (Replaces 6G5-45384-00, 6G5-45384-01, 6G5-45384-02) is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
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Propeller Shaft Bearing Housing Spanner Nut – Fits Yamaha 150HP 175...
Propeller Shaft Bearing Housing Spanner Nut – Fits Yamaha 150HP 175HP 200HP 225HP (Replaces 6G5-45384-00, 6G5-45384-01, 6G5-45384-02) is backordered and will ship as soon as it is back in stock.
Product Details
This Propeller Shaft Bearing Housing Spanner Nut is engineered for Yamaha outboard motors rated at 150HP, 175HP, 200HP, and 225HP. Designed as a lower gearcase locking ring nut, this component secures the propeller shaft bearing housing within the lower unit assembly, ensuring reliable operation and proper shaft retention.
This aftermarket replacement directly interchanges with Yamaha OEM part numbers 6G5-45384-00, 6G5-45384-01, and 6G5-45384-02.
- Tailored for Yamaha outboard lower gearbox units
- Precision-manufactured to align with original equipment standards
- Ensures exact fit and consistent performance
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 6G5-45384-00 | OEM reference |
| Yamaha | 6G5-45384-01 | OEM reference |
| Yamaha | 6G5-45384-02 | OEM reference |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Rated HP | OEM Part No. |
|---|---|---|
| Yamaha | 150HP | 6G5-45384-00, 6G5-45384-01, 6G5-45384-02 |
| Yamaha | 175HP | 6G5-45384-00, 6G5-45384-01, 6G5-45384-02 |
| Yamaha | 200HP | 6G5-45384-00, 6G5-45384-01, 6G5-45384-02 |
| Yamaha | 225HP | 6G5-45384-00, 6G5-45384-01, 6G5-45384-02 |
Technical Specs
- Part Type
- Lower Unit Spanner Nut / Locking Ring Nut
- Application
- Propeller Shaft Bearing Housing
- Fitment
- Yamaha Outboard 150–225HP
- OEM Number
- 6G5-45384
What's in the Box
- 1 × Locking Ring Nut
Installation Notes
- Drain the lower unit gear oil completely and remove the propeller assembly.
- Carefully separate the lower unit from the mid-section housing following your service manual.
- Remove the old spanner nut using the appropriate spanner wrench; inspect the propeller shaft bearing housing for wear or damage.
- Clean all mating surfaces and threads thoroughly to ensure proper seating.
- Install the new locking ring nut by hand, then torque to manufacturer specifications using a calibrated wrench.
- Reassemble the lower unit, refill with the correct gear oil grade, and reinstall the propeller.
- Test the installation by rotating the propeller shaft to confirm smooth operation without binding.
Troubleshooting & FAQ
How do I know if my spanner nut needs replacement?
Common signs include visible thread damage, corrosion that prevents proper tightening, or looseness during routine inspection. If the nut cannot hold the specified torque or shows cracks, replace it immediately.
What torque specification should I use?
Always refer to your Yamaha outboard service manual for the exact torque value for your model year. Typical specifications range between 50–70 ft-lbs, but verify before installation to avoid damage.
Can I install this without removing the lower unit?
No. Accessing the propeller shaft bearing housing spanner nut requires full lower unit disassembly. Attempting shortcuts can result in incomplete installation or damage to seals and bearings.
Will this fit earlier or later Yamaha models?
This nut is designed specifically for 150–225HP models using OEM part numbers 6G5-45384-00, 6G5-45384-01, or 6G5-45384-02. Cross-check your parts diagram or original part number before ordering.
What tools are required for installation?
You will need a spanner wrench compatible with the nut's profile, a torque wrench, and standard lower unit service tools. Consult your service manual for the exact spanner size.
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 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.
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