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Standard Ignition SC406 Vehicle Speed Sensor
| Brand | Standard Ignition SC406 |
|---|---|
| Connector Gender | Male |
| Connector Shape | Rectangular |
| Connector Type | Plug In |
| Mounting Location | On Transimission |
| Mounting Type | Screw-in |
| Terminal Gender | Male |
| Terminal Type | Blade |
| Fits | Subaru · 8 vehicles |
Screw-in design. Installs securely with a simple threaded mount.
Plug-in connector. One rectangular male connector for straightforward hookup.
Sensor only. Replacement sensor without extra brackets or hardware.
Cross-references Four Seasons 75639, Standard Ignition SC406 and 5S4829 for the same application. See all 9.
Standard Ignition SC406 Vehicle Speed Sensor
The Standard Ignition SC406 is a new screw-in vehicle speed sensor with a plug-in rectangular connector and included wiring harness. It is built for direct replacement service on select Subaru applications, including Legacy, Impreza, and Forester models from the mid-1990s through 1998.
Key Features
- Vehicle speed sensor for drivetrain speed signal input
- Screw-in mounting style for direct sensor replacement
- Male rectangular connector with plug-in terminal design
- 2-wire, 2-terminal blade configuration
- New sensor only with wiring harness included
- Silver and black finish
Product Details
Standard Ignition SC406 is a replacement vehicle speed sensor engineered for Subaru speed signal applications. It uses a screw-in attachment method, a male connector, and a rectangular plug-in interface to match the original style used on supported vehicles. This SC406 sensor is listed for 1995-1998 Subaru Legacy, 1996-1998 Subaru Impreza, and 1998 Subaru Forester, making it a fitment-based choice for owners searching for a Subaru Legacy vehicle speed sensor or a Subaru Impreza speed sensor replacement. The part number SC406 is also useful when cross-checking catalog listings for the same application.
This part cross-references Four Seasons 75639 for the same application.
What It Helps Resolve
- Inaccurate or unstable vehicle speed readings
- Speedometer operation concerns tied to sensor signal loss
- Transmission control issues related to missing vehicle speed input
- Diagnostic trouble codes associated with the speed sensor circuit
Installation Notes and Tips
Install the sensor in the original screw-in location and verify the connector style before installation. Because this unit is sensor only, inspect the mating harness and connector terminals for corrosion, looseness, or damage before reconnecting. Confirm vehicle application by year and model before ordering; SC406 fits 1995-1998 Subaru Legacy, 1996-1998 Subaru Impreza, and 1998 Subaru Forester.
Quality Assurance
Standard Ignition supplies this SC406 vehicle speed sensor as a new replacement part built to match the listed OE-style application requirements for supported Subaru vehicles.
| Year | Make | Model | Transmission | Position | Notes |
|---|---|---|---|---|---|
| 1998 | Subaru | Forester | Manual | N/A | — |
| 1998 | Subaru | Impreza | Manual | N/A | — |
| 1998 | Subaru | Legacy | Manual | N/A | — |
| 1997 | Subaru | Impreza | Manual | N/A | — |
| 1997 | Subaru | Legacy | Manual | N/A | — |
| 1996 | Subaru | Impreza | Manual | N/A | — |
| 1996 | Subaru | Legacy | Manual | N/A | — |
| 1995 | Subaru | Legacy | Manual | N/A | — |
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