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4-Wire Ignition Key Switch for Yamaha YFM400 YFM450 YFZ450 ATV
4-Wire Ignition Key Switch for Yamaha YFM400 YFM450 YFZ450 ATV
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Product Overview
Replacement 4-wire ignition key switch for selected Yamaha YFM400, YFM450, and YFZ450-series ATV and quad applications using a compatible ignition-switch configuration.
The switch features an approximately 30mm (1.2") outer diameter, 22mm (0.87") inner diameter, and 250mm (9.8") wire length, providing useful dimensions for comparison with the original ignition switch.
Listed applications include selected YFM400, YFM450, YFZ450R, YFZ450X, and related YFZ450 configurations.
Before ordering, verify the exact ATV model and compare the 4-wire configuration, connector or terminal arrangement, switch dimensions, wire length, mounting design, and original switch appearance.
Product Compatibility
| Make | Model / Series | Fitment Notes |
|---|---|---|
| Yamaha | YFM400 | Selected applications; verify original switch |
| Yamaha | YFM450 | Selected applications; verify wiring and dimensions |
| Yamaha | YFZ450R | Verify 4-wire ignition-switch configuration |
| Yamaha | YFZ450X | Verify connector and mounting |
| Yamaha | YFZ450LE | Listed application reference |
| Yamaha | YFZ450SE | Listed application reference |
| Yamaha | YFZ450SP | Listed application reference |
| Yamaha | YFZ450V | Listed application reference |
| Yamaha | YFZ450W | Listed application reference |
| ATV / Quad | W14 400 / 450 | Listed reference; verify exact application |
Specifications
| Specification | Details |
|---|---|
| Product Type | Ignition Key Switch |
| Make / Application | Yamaha ATV / Quad |
| Listed Series | YFM400 / YFM450 / YFZ450 |
| Wire Count | 4-Wire |
| Ignition Switch Outer Diameter | Approx. 30 mm / 1.18 in |
| Ignition Switch Inner Diameter | Approx. 22 mm / 0.87 in |
| Wire Length | Approx. 250 mm / 9.84 in |
| Replacement Type | Aftermarket |
| Condition | New |
Key Features
- 4-Wire Configuration: Designed for compatible Yamaha ATV ignition systems using a matching four-wire configuration.
- YFM & YFZ Applications: Listed for selected YFM400, YFM450, and YFZ450-series applications.
- 250mm Wire Length: Approximately 9.8-inch harness length provides an additional fitment reference.
- Defined Switch Dimensions: Approximately 30mm outer and 22mm inner dimensions help with physical comparison.
- Replacement Key Switch: Suitable for replacing a compatible worn, damaged, or malfunctioning ignition switch.
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Preguntas frecuentes sobre compatibilidad
¿Esta pieza es compatible con mi modelo y año específicos?
This switch is listed for selected Yamaha YFM400, YFM450, YFZ450R, YFZ450X, and related YFZ450 applications.
Because no exact year range is provided, verify the original ignition switch's wiring, connector, dimensions, and mounting design before ordering.
¿Necesito que coincida el número de pieza OEM?
No verified Yamaha OEM number is provided for this product.
Instead, compare:
4-wire configuration
Connector / terminal type
Pin arrangement
Approx. 30mm outer diameter
Approx. 22mm inner diameter
Approx. 250mm wire length
Mounting design
Key-switch functions
Original switch appearance
¿Qué modelos o situaciones no son compatibles con esta pieza?
Do not assume this switch fits:
Every Yamaha YFM400
Every Yamaha YFM450
Every Yamaha YFZ450
All YFZ450 model years
Switches using a different wire count
4-wire switches with a different pinout
Vehicles using incompatible connectors
Ignition switches with different mounting dimensions
A matching model family or four-wire configuration alone does not guarantee compatibility.
¿Qué debo verificar antes de hacer un pedido?
Confirm:
Exact Yamaha ATV model
Model year
Submodel / version
4-wire configuration
Connector shape and pin arrangement
Approx. 30mm outer switch dimension
Approx. 22mm inner dimension
Approx. 250mm wire length
Mounting configuration
Original switch appearance
Compare the replacement directly with the original ignition switch before purchase.