Drive Shaft Bushing – Fits Yamaha 6HP, 8HP, F9.9 Outboards (Replaces 6G1-45316-09-00)
Drive Shaft Bushing – Fits Yamaha 6HP, 8HP, F9.9 Outboards (Replaces 6G1-45316-09-00) is backordered and will ship as soon as it is back in stock.
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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.).
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Drive Shaft Bushing – Fits Yamaha 6HP, 8HP, F9.9 Outboards (Replace...
Product Details
This aftermarket Drive Shaft Bushing – Fits Yamaha 6HP, 8HP, F9.9 Outboards (Replaces 6G1-45316-09-00) is designed for specific Yamaha 2-stroke and 4-stroke outboard engines. It ensures proper alignment and reduces friction within the lower drive shaft assembly, contributing to smooth and reliable operation.
It serves as a direct replacement for Yamaha OEM part 6G1-45316-09-00 and ITACO 6G1-45316-09.
- Installs in the lower casing at position 1 of the drive shaft.
- Engineered for marine environments to resist wear from friction and corrosion.
- Package includes one drive shaft bushing.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket suppliers.
| Brand | Part Number |
|---|---|
| Yamaha | 6G1-45316-09-00 |
| ITACO | 6G1-45316-09 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha owners, please verify your engine model and horsepower to ensure this part is the correct fit for your lower unit.
| Brand | Model | Rated HP | Stroke | OEM Part No. |
|---|---|---|---|---|
| Yamaha | F6A, F6B | 6 | 2-Stroke | 6G1-45316-09-00 |
| Yamaha | F8C | 8 | 2-Stroke | 6G1-45316-09-00 |
| Yamaha | F9.9 | 9.9 | 4-Stroke | 6G1-45316-09-00 |
Technical Specs
- Product Type
- Drive Shaft Bushing
- Installation
- Lower Casing/Drive Shaft Assembly
- Dimensions
- 2.0" L x 1.5" W x 1.5" H
- Weight
- 100g (0.22 lb)
- Other Technical Attributes
- Drive Shaft 1 position (Lower Unit)
What’s in the Box
- 1 x Bushing, Drive Shaft (6G1-45316-09-00)
Installation Notes
- Disconnect the battery and ensure the engine is securely mounted.
- Drain the lower unit gear lube.
- Remove the propeller and detach the lower unit (gearcase) from the engine's upper housing.
- Disassemble the lower unit to access the drive shaft assembly.
- Carefully remove the old drive shaft bushing, taking note of its orientation.
- Clean the bushing housing area to remove any debris or corrosion.
- Press the new bushing into place, ensuring it is properly seated.
- Reassemble the drive shaft, water pump, and lower unit components in reverse order.
- Refill the gearcase with the manufacturer-specified lubricant.
- Reconnect the lower unit to the engine and re-install the propeller.
- Test the engine in a controlled environment to ensure proper function before open water use.
Troubleshooting & FAQ
How do I know if this bushing fits my Yamaha outboard?
This part fits specific Yamaha 6HP, 8HP, and F9.9 models. The best way to confirm is to check your engine's model number against the compatibility table and verify that your existing part number is 6G1-45316-09-00.
What are the signs of a worn or failing drive shaft bushing?
Common symptoms include excessive vibration from the lower unit, unusual grinding or rattling noises, visible play in the drive shaft, or accelerated wear on the drive shaft seals, which may lead to water intrusion in the gearcase.
Is a special tool required for installation?
While basic hand tools are needed, removing the old bushing and pressing in the new one may require a bearing puller and a press or a suitably sized socket to avoid damaging the new part or the housing. Professional installation is recommended.
How often should the drive shaft bushing be replaced?
Replacement is typically done when signs of wear appear or during a major lower unit overhaul. There isn't a fixed service interval; inspect it whenever the lower unit is serviced, especially if you notice any of the failure symptoms.
Can I replace just the bushing without other parts?
Yes, but it is best practice to inspect the drive shaft and seals at the same time. If the old bushing was severely worn, it may have damaged the shaft or seals, which should also be replaced to ensure a complete and lasting repair.
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.
Payment & Security
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