Yamaha Outboard Starter Motor Assembly – Fits Yamaha 75-90HP 4-Stroke (Replaces 6FP-81800-00-00, 6FP-81800-01-00)
Yamaha Outboard Starter Motor Assembly – Fits Yamaha 75-90HP 4-Stroke (Replaces 6FP-81800-00-00, 6FP-81800-01-00) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Product Details
This aftermarket Yamaha Outboard Starter Motor Assembly is a direct-fit replacement for select Yamaha 75–90HP 4-Stroke engines (F75, F90, VF90 series) from 2016–2019 and newer models. It is engineered to meet or exceed original equipment specifications for reliable performance.
This unit serves as a direct interchange for Yamaha OEM part numbers 6FP-81800-00-00 and its successor, 6FP-81800-01-00.
- Designed for simple, direct OEM-replacement installation.
- Operates on a standard 12V electrical system.
- Includes one complete starter motor assembly for a full swap.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Superseded By |
|---|---|---|
| Yamaha | 6FP-81800-00-00 | 6FP-81800-01-00 |
| Yamaha | 6FP-81800-01-00 |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha engines, verify the model code (e.g., F75LB) and production year range match your outboard motor.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | F75LB | 75 | 4-Stroke | 2017–2019 | 6FP-81800-00-00 | Superseded by 6FP-81800-01-00 |
| Yamaha | F75XB | 75 | 4-Stroke | 2019 | 6FP-81800-01-00 | |
| Yamaha | F90JB | 90 | 4-Stroke | 2017–2019 | 6FP-81800-00-00 | Superseded by 6FP-81800-01-00 |
| Yamaha | F90LB | 90 | 4-Stroke | 2016–2019 | 6FP-81800-00-00 | Superseded by 6FP-81800-01-00 |
| Yamaha | F90XB | 90 | 4-Stroke | 2017–2019 | 6FP-81800-00-00 | Superseded by 6FP-81800-01-00 |
| Yamaha | VF90LA | 90 | 4-Stroke | 2018–2019 | 6FP-81800-00-00 | Superseded by 6FP-81800-01-00 |
| Yamaha | VF90XA | 90 | 4-Stroke | 2018–2019 | 6FP-81800-00-00 | Superseded by 6FP-81800-01-00 |
Technical Specs
- Product Type
- Starter Motor Assembly
- Installation
- Direct OEM replacement
- Voltage
- 12V
- Power
- 1.4kW
- Teeth
- 9 tooth
- Unit Type
- Starter
- Dimensions
- 27.0cm L x 16.3cm W x 14.0cm H
What’s in the Box
- 1 x Starting Motor Assembly (Replaces OEM 6FP-81800-01-00)
Installation Notes
- Disconnect the battery cables (negative terminal first) to prevent electrical shorts.
- Identify and label the electrical connections on the old starter motor before removal.
- Remove the mounting bolts securing the old starter and carefully detach it from the engine.
- Compare the new starter with the original part to ensure all dimensions, mounting points, and electrical connections match.
- Position the new starter motor and tighten the mounting bolts to the manufacturer's specified torque.
- Reconnect the electrical wires to their corresponding terminals as previously labeled.
- Reconnect the battery cables (positive terminal first), ensuring all connections are tight and secure.
- Test the installation by starting the engine, listening for smooth and proper engagement.
Troubleshooting & FAQ
How do I know if this starter fits my Yamaha engine?
This starter is designed for Yamaha 75-90HP 4-Stroke models like the F75, F90, and VF90 from 2016 onward. Always verify your specific model code and year against our compatibility table before ordering.
What are the signs of a failing starter motor?
Common symptoms include a distinct clicking sound when turning the key, slow or labored engine cranking, the starter spinning without engaging the flywheel, or the engine failing to start intermittently.
What's the difference between part number 6FP-81800-00-00 and 6FP-81800-01-00?
Part number 6FP-81800-01-00 is the official OEM supersession for 6FP-81800-00-00. They are functionally identical, and this aftermarket starter is a direct replacement for both.
Is this a direct-fit replacement part?
Yes, this is an aftermarket starter engineered to be a direct-fit replacement. It requires no modifications for installation on compatible engine models.
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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