Engine Stop Switch Assembly – Fits Yamaha 40HP E40X Outboard Motors (Replaces 66T-82575-01-00)
Engine Stop Switch Assembly – Fits Yamaha 40HP E40X Outboard Motors (Replaces 66T-82575-01-00) 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 Engine Stop Switch Assembly – Fits Yamaha 40HP E40X Outboard Motors is a direct-fit replacement for Yamaha 40HP E40X 2-stroke outboard motors from 2001 and newer. It ensures your engine's safety cutoff system functions reliably.
This unit interchanges with Yamaha part numbers 66T-82575-01-00, 697-82575-00-00, and 6K5-82575-02-00, as well as Parsun PAT40-01020101.
- Designed for direct bolt-on installation with no modifications required.
- Features anti-corrosion treatment for enhanced durability in saltwater environments.
- Includes the main switch assembly as a single, ready-to-install unit.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Yamaha | 66T-82575-01-00 | Primary replacement part number. |
| Yamaha | 697-82575-00-00 | Superseded by 66T-82575-01-00. |
| Yamaha | 6K5-82575-02-00 | Superseded by 66T-82575-01-00. |
| Parsun | PAT40-01020101 | Aftermarket cross-reference. |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Yamaha Owners: This part is confirmed to fit the E40X models listed. Please verify your specific model and year before ordering.
For Parsun Owners: This part is listed as a compatible replacement for certain models. Please verify your OEM part number is PAT40-01020101.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. | Notes |
|---|---|---|---|---|---|---|
| Yamaha | E40X | 40 | 2-Stroke | 2001+ | 66T-82575-01-00 | Also fits 40XMH, E40XMH, XW, XWT models |
Technical Specs
- Product Type
- Engine Stop Switch Assembly
- Installation
- Direct bolt-on replacement
- Dimensions
- 13.0 cm x 14.0 cm x 3.0 cm
- Weight
- 0.1 kg (0.22 lb)
- Housing Material
- ABS Plastic and Metal
- Technical Attributes
- Anti-corrosion treatment for saltwater environment
What’s in the Box
- 1x Engine Stop Switch Assembly
Installation Notes
- Ensure the engine is off and the battery is disconnected before starting work.
- Locate the existing engine stop switch assembly on your outboard motor.
- Carefully disconnect the wiring harness connected to the old switch.
- Unscrew or unbolt the old switch from its mounting position.
- Clean the mounting area of any dirt or corrosion.
- Mount the new switch assembly, ensuring it is secure.
- Connect the wiring harness to the new switch.
- Reconnect the engine battery.
- Test the functionality of the new stop switch and lanyard before operating the motor on the water.
Troubleshooting & FAQ
How do I know if this stop switch fits my engine?
This switch is confirmed to fit Yamaha E40X 2-Stroke models from 2001 and newer. The most reliable way to confirm fitment is to match your existing part number to one of the equivalents listed in our Part Number Matrix (66T-82575-01-00, 697-82575-00-00, 6K5-82575-02-00).
What are the signs of a failing engine stop switch?
Common symptoms include the engine not starting, the engine cutting out intermittently, or the inability to stop the engine using the switch. Corrosion on the contacts or physical damage to the switch or lanyard are also indicators that a replacement is needed.
Is this a direct replacement for the original part?
Yes, this is a direct bolt-on replacement designed to match the fit and function of the original OEM part for the specified models. No modifications to your engine or wiring should be necessary.
What is the purpose of the safety lanyard?
The safety lanyard (also known as a kill switch cord) attaches to the operator. If the operator falls away from the helm, the lanyard pulls a clip from the switch, immediately stopping the engine to prevent a runaway boat and potential injury.
What maintenance is required for this switch?
Regularly inspect the switch and lanyard for cracks, corrosion, or damage. After use in saltwater, it's good practice to rinse the console area with fresh water to minimize salt buildup. Test the switch's function periodically.
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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