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Standard Ignition SC373 Automatic Transmission Output Shaft Speed Sensor
Automatic Transmission Output Shaft Speed Sensor
Standard Ignition SC373 is an automatic transmission output shaft speed sensor built for direct-fit service on select Nissan applications. It monitors transmission output shaft speed and sends the signal needed for accurate vehicle speed and transmission control. This SC373 sensor is a practical replacement for Nissan Quest and Nissan Altima models within the listed years.
Key Features
- Automatic transmission output shaft speed sensor for transmission speed signal input
- Bolt-mount attachment with one mounting hole for straightforward installation
- Female rectangular plug-in connector with included wiring harness
- Two-wire design with male blade terminals
- Grey finish and vehicle speed sensor contents
- Direct replacement for Standard Ignition SC373 applications
Fitment Details
Fits 1999-2002 Nissan Quest, N/A. Fits 1999-2001 Nissan Altima, N/A. This part cross-references 5S4802 and 13-0364 for the same application.
What It Helps Address
- Erratic or inaccurate vehicle speed readings
- Transmission shifting concerns related to speed signal loss
- Illuminated check engine light from speed sensor faults
- Intermittent transmission control issues caused by a failing output shaft sensor
- Signal interruptions from worn connector or sensor internals
Installation Notes
Verify connector shape, terminal style, and mounting style before installation. SC373 uses a bolt-mount design with a single mounting hole and a plug-in female connector, so matching the OE connector and harness layout is important. Inspect the transmission connector and wiring for corrosion or damage before installing the new sensor.
Quality Assurance
Standard Ignition is a recognized aftermarket source for electrical and engine management components. SC373 is built to match the listed application requirements for Nissan Quest and Nissan Altima fitment.
| Brand | Standard Ignition |
|---|---|
| Part Number | SC373 |
| Attachment Method | Bolt mount |
| Color/Finish | Grey |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Rectangular |
| Connector Type | Plug in |
| Contents | Vehicle speed sensor |
| Hardware Included | No |
| Mounting Bracket(s) Included | No |
| Mounting Hole Quantity | 1 |
| Number of wires | 2 |
| Terminal Gender | Male |
| Terminal Quantity | 2 |
| Terminal Type | Blade |
| Wiring Harness Included | Yes |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2002 | Nissan | Quest | N/A | |
| 2001 | Nissan | Altima | N/A | |
| 2001 | Nissan | Quest | N/A | |
| 2000 | Nissan | Altima | N/A | |
| 2000 | Nissan | Quest | N/A | |
| 1999 | Nissan | Altima | N/A | |
| 1999 | Nissan | Quest | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.