Ignition Cut-Off Switch Assembly for Yamaha Outboards and Mercury Mariner
Ignition Cut-Off Switch Assembly for Yamaha Outboards and Mercury Mariner is backordered and will ship as soon as it is back in stock.
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Ignition Cut-Off Switch Assembly for Yamaha Outboards and Mercury M...
Ignition Cut-Off Switch Assembly for Yamaha Outboards and Mercury Mariner is backordered and will ship as soon as it is back in stock.
Product Details
This replacement Ignition Cut-Off Switch Assembly is designed for specified Yamaha outboard engines and Mercury Mariner outboards. The switch interrupts the ignition circuit to provide a convenient way to stop the engine and replace a worn or damaged original switch assembly.
This is a single switch assembly. The company product record does not identify this item as a kit or state that a separate safety lanyard is included.
- Replacement ignition cut-off switch assembly for selected Yamaha and Mercury Mariner outboards.
- Suitable for the engine applications and reference numbers listed below.
- Use the original switch, connector and mounting arrangement to verify the physical and electrical match before installation.
Part Number Matrix
The following are manufacturer reference numbers and aftermarket reference numbers listed for this replacement switch. Number listings are provided for identification; always compare the original part and connector before ordering.
| Brand or Reference Type | Part Number |
|---|---|
| Yamaha | 63V-82575-00 |
| Yamaha | 65W-82575-00 |
| Yamaha | 689-82575-02 |
| Yamaha | 689-82575-03 |
| Yamaha | 689-82575-04 |
| Yamaha | 699-82575-09 |
| Yamaha | 6E9-82575-00 |
| Yamaha | 6E9-82575-01 |
| Yamaha | 6E9-82575-02 |
| Yamaha | 6H4-82575-00 |
| Yamaha | 6H4-82575-02 |
| Mercury | 87-97757M |
| Mercury | 94537M |
| Mercury | 99050M |
| Mercury | 97757M |
| Aftermarket reference | 18-65450 |
| Aftermarket reference | 9-15450 Mallory Marine |
Engine & Model Compatibility
Confirm the engine brand, model designation, horsepower and any year condition against the lists below. Do not rely on horsepower alone because connector and switch configurations may vary.
| Brand | Engine Model or Series | Rated HP | Stroke | Year or Other Condition | Reference Numbers |
|---|---|---|---|---|---|
| Yamaha | F2.5 | 2.5 | Not specified | Not specified | See Yamaha numbers above |
| Yamaha | T/F 6–8 | 6–8 | Not specified | Not specified | See Yamaha numbers above |
| Yamaha | F9.9–F15 | 9.9–15 | Not specified | Not specified | See Yamaha numbers above |
| Yamaha | 9.9F-M | 9.9 | Not specified | Not specified | See Yamaha numbers above |
| Yamaha | F13.5 | 13.5 | Not specified | Not specified | See Yamaha numbers above |
| Yamaha | F25 | 25 | Not specified | 2002 and later | See Yamaha numbers above |
| Mercury Mariner | Outboard applications listed by horsepower | 9.9, 15, 25, 30, 40, 48 | Not specified | Model and year not specified | 87-97757M, 94537M, 99050M, 97757M |
Technical Specs
- Product Type
- Ignition Cut-Off Switch Assembly
- Product Configuration
- Single switch assembly; not identified as a kit
- Function
- Interrupts the ignition circuit to stop the outboard engine
- Application
- Selected Yamaha outboards and Mercury Mariner outboards
- Installation
- Replacement installation using the original mounting and electrical connection where compatible
- Material and Color
- Not specified in the company product record
What’s in the Box
- 1 x Ignition Cut-Off Switch Assembly
A separate safety lanyard is not identified as an included component in the company product record.
Installation Notes
- Turn the engine off and remove the ignition key before beginning work.
- Disconnect power according to the engine manufacturer’s service procedure.
- Access the original ignition cut-off switch and note the connector and wire positions.
- Disconnect the original switch and remove its mounting hardware.
- Install the replacement switch using the original mounting arrangement, if compatible.
- Reconnect the electrical connector securely and check that wiring is routed away from moving or hot components.
- Before operating the boat, test the switch with the engine off and confirm that the ignition circuit responds correctly.
- After installation, start the engine in a safe location and verify that the switch stops the engine as intended.
Troubleshooting & FAQ
How do I confirm compatibility?
Match your engine brand, model designation, horsepower and any applicable year condition to the compatibility table. Also compare the original switch, connector and mounting arrangement. The listed horsepower range alone is not sufficient to confirm fitment.
Is this a complete safety lanyard kit?
No kit contents are stated in the company record. This product is identified as a single ignition cut-off switch assembly, and a separate safety lanyard is not listed as included.
What does the ignition cut-off switch do?
The switch interrupts the ignition circuit so the outboard engine can be stopped. It is commonly operated through the boat’s engine stop-control system.
What should I check if the replacement switch does not work?
Check that the connector is fully seated, the terminals are clean and undamaged, the wires are in the correct positions, and the switch matches the original mounting and electrical configuration. If the problem remains, consult the engine service information or a qualified marine technician.
Can I use the existing lanyard with this switch?
The company record does not specify lanyard compatibility or include a lanyard. If your original system uses a lanyard, compare the clip and switch interface before installation.
Is this an OEM component?
This listing is for a replacement switch assembly. Yamaha and Mercury/Mariner numbers shown on this page are manufacturer reference numbers used for identification and compatibility comparison; the replacement itself is not presented as a genuine OEM component.
Safety & Important Info
- Verify the engine model, horsepower, connector and mounting details before purchase.
- Disconnect power and follow the engine manufacturer’s safety and service procedures during installation.
- Test the engine stop function in a controlled, safe location before normal operation.
- Professional installation is recommended if the ignition wiring or safety-control operation is uncertain.
About Sea Sierra
- Marine Replacement Parts — Replacement components for common outboard service applications.
- Application-Focused Listings — Compatibility information is organized by brand, model and horsepower where available.
- Identification Support — Manufacturer reference numbers are provided to help compare the original component before ordering.
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