Drive Shaft Bushing – Fits Yamaha 6HP, 8HP & F9.9HP (Replaces 6G1-45317-09)
Drive Shaft Bushing – Fits Yamaha 6HP, 8HP & F9.9HP (Replaces 6G1-45317-09) 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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Drive Shaft Bushing – Fits Yamaha 6HP, 8HP & F9.9HP (Replaces 6G1-45317-09) is backordered and will ship as soon as it is back in stock.
Product Details
This Drive Shaft Bushing – Fits Yamaha 6HP, 8HP & F9.9HP (Replaces 6G1-45317-09) is an essential replacement part for Yamaha 6HP, 8HP, and F9.9HP outboard motors (both 2-Stroke and 4-Stroke models) from 1984 and newer.
It serves as a direct aftermarket replacement for Yamaha part numbers 6G1-45317-09-00, 6G1-45317-09, and 90381-11M02.
- Installs in the lower drive case of the outboard motor.
- Constructed from a durable brass/metal alloy for reliable performance.
- Designed for optimal performance in marine environments.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number |
|---|---|
| Yamaha | 6G1-45317-09-00 |
| Yamaha | 6G1-45317-09 |
| Yamaha | 90381-11M02 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F6A/M | 6 | 4-Stroke | 1984 and later | 6G1-45317-09 | |
| Yamaha | F8C/M/F | 8 | 4-Stroke | 1984 and later | 6G1-45317-09 | |
| Yamaha | F9.9F/J | 9.9 | 4-Stroke | 1984 and later | 6G1-45317-09 | |
| Yamaha | 6 | 6 | 2-Stroke | 1984 and later | 6G1-45317-09 | |
| Yamaha | 8 | 8 | 2-Stroke | 1984 and later | 6G1-45317-09 |
Technical Specs
- Product Type
- Drive Shaft Bushing
- Installation
- Lower Drive Case
- Housing Material
- Brass/Metal
- Housing Color
- Gold
- Dimensions
- 2.5 cm × 2.0 cm × 2.0 cm (L × W × H)
- Weight
- 0.02 kg (20 g)
- Other Technical Attributes
- Durable replacement part designed for optimal performance
What’s in the Box
- 1 x Drive Shaft Bushing (Replaces 6G1-45317-09-00)
Installation Notes
- Ensure the engine is off, cool, and disconnected from the power source before starting.
- Access the lower drive unit, which may require disassembly according to your service manual.
- Carefully locate and extract the old, worn drive shaft bushing.
- Thoroughly clean the housing area to remove any dirt, corrosion, or old grease.
- Apply a light coat of marine-grade grease to the outer surface of the new bushing.
- Press the new bushing into position, ensuring it is fully and evenly seated.
- Reassemble the lower unit and any other components that were removed.
- After reassembly, test the engine's operation in a safe environment (e.g., in water or with a flush attachment).
Troubleshooting & FAQ
Which Yamaha engines is this bushing compatible with?
This bushing fits select Yamaha 6HP, 8HP, and F9.9HP outboard motors (both 2-stroke and 4-stroke models) manufactured from 1984 onwards. Always verify your specific model and part number against the compatibility table before ordering.
How do I know if my drive shaft bushing needs replacement?
Common signs of a worn or failed bushing include excessive vibration, unusual grinding or humming noises from the lower unit, or visible wear and damage on the old bushing upon inspection.
Is this bushing made of the same material as the OEM part?
This part is designed to meet or exceed OEM specifications. It is constructed from a durable brass/metal alloy chosen for its corrosion resistance and reliability in marine environments.
Can I install this bushing myself?
While installation is possible for individuals with strong mechanical experience and the right tools, we recommend professional installation to ensure it is seated correctly and to prevent potential damage to the drive shaft or lower unit.
Does this part replace Yamaha part number 90381-11M02?
Yes, this bushing serves as a direct cross-reference for Yamaha OEM part numbers 6G1-45317-09, 6G1-45317-09-00, and 90381-11M02.
What is the recommended replacement interval for this part?
There is no fixed replacement interval. The bushing should be inspected during regular lower unit service and replaced if any signs of wear, damage, or excessive play are detected.
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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