OE Quality
60-Day Returns

Standard Ignition SC835 Automatic Transmission Output Shaft Speed Sensor
Automatic Transmission Output Shaft Speed Sensor
Standard Ignition SC835 is a new automatic transmission output shaft speed sensor built for direct mounting on the transmission. It uses a bolt-on attachment, a single bolt hole, and a plug-in female connector with a 2-wire harness for a straightforward OE-style replacement.
Compatible with 2020-2024 Chevrolet Silverado 2500 HD, 2020-2024 Chevrolet Silverado 3500 HD, 2020-2024 GMC Sierra 2500 HD, and 2020-2024 GMC Sierra 3500 HD, SC835 supports accurate transmission speed signal input on these heavy-duty applications. The black and gray sensor body is designed for on-transmission mounting and uses a rectangular connector layout.
Key Features
- Automatic transmission output shaft speed sensor for transmission-mounted applications
- Bolt-on design with one mounting hole and included bolt hardware
- Female plug-in connector with rectangular shape and blade terminals
- 2-wire construction with wiring harness included
- New replacement part from Standard Ignition
- Cross-reference part numbers include 24043904 and SN8536
Detailed Description
Standard Ignition SC835 is an automatic transmission output shaft speed sensor engineered for vehicles where the sensor mounts directly on the transmission case. It is built with a female connector, 2-wire layout, and bolt-mount attachment to match the original installation style. For buyers searching for a 2020-2024 Chevrolet Silverado 2500 HD transmission speed sensor or a 2020-2024 GMC Sierra 3500 HD output shaft speed sensor, SC835 provides a direct-fit replacement option.
This part cross-references 24043904 and SN8536 for the same application. The sensor’s plug-in connector, included wiring harness, and bolt-on mounting design support a clean replacement on Silverado HD and Sierra HD trucks.
Common Problems This Part Can Address
- Erratic or missing transmission output speed signal
- Transmission shifting concerns related to speed sensor input
- Illuminated transmission or powertrain warning lights tied to sensor faults
- Harsh, delayed, or inconsistent shift behavior caused by inaccurate shaft speed data
- Failed sensor connector or damaged transmission-mounted sensor assembly
Installation Notes and Tips
SC835 mounts on the transmission with a bolt-on design and one mounting point. Confirm connector style, terminal count, and transmission location before installation, and inspect the harness routing and mating connector for wear or corrosion. Always verify vehicle application by year, make, and model before ordering.
Quality Assurance
Standard Ignition supplies this part as a new replacement sensor for transmission applications. Its OE-style mounting and connector layout support accurate fitment on the listed Chevrolet Silverado HD and GMC Sierra HD models.
| Brand | Standard Ignition |
|---|---|
| Part Number | SC835 |
| Attachment Method | Bolt on |
| Color/Finish | Black , gray |
| Connector Gender | Female |
| Connector Quantity | 1 |
| Connector Shape | Rectangle |
| Connector Type | Plug in |
| Dust Shield Included | No |
| Hardware Included | Bolt |
| Mounting Bracket(s) Included | No |
| Mounting Hardware Included | Yes |
| Mounting Hole Quantity | 1 |
| Mounting Location | On transmission |
| Mounting Type | Bolt mount |
| New or Reman | New |
| Number of Bolt Holes | 1 |
| Number of wires | 2 |
| Terminal Gender | Female |
| Terminal Quantity | 2 |
| Terminal Type | Blade |
| Wiring Harness Included | Yes |
This part fits 20 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 2024 | Chevrolet | Silverado 2500 HD | N/A | Mounted on Transmission |
| 2024 | Chevrolet | Silverado 3500 HD | N/A | Mounted on Transmission |
| 2024 | GMC | Sierra 2500 HD | N/A | Mounted on Transmission |
| 2024 | GMC | Sierra 3500 HD | N/A | Mounted on Transmission |
| 2023 | Chevrolet | Silverado 2500 HD | N/A | Mounted on Transmission |
| 2023 | Chevrolet | Silverado 3500 HD | N/A | Mounted on Transmission |
| 2023 | GMC | Sierra 2500 HD | N/A | Mounted on Transmission |
| 2023 | GMC | Sierra 3500 HD | N/A | Mounted on Transmission |
| 2022 | Chevrolet | Silverado 2500 HD | N/A | Mounted on Transmission |
| 2022 | Chevrolet | Silverado 3500 HD | N/A | Mounted on Transmission |
| 2022 | GMC | Sierra 2500 HD | N/A | Mounted on Transmission |
| 2022 | GMC | Sierra 3500 HD | N/A | Mounted on Transmission |
| 2021 | Chevrolet | Silverado 2500 HD | N/A | Mounted on Transmission |
| 2021 | Chevrolet | Silverado 3500 HD | N/A | Mounted on Transmission |
| 2021 | GMC | Sierra 2500 HD | N/A | Mounted on Transmission |
| 2021 | GMC | Sierra 3500 HD | N/A | Mounted on Transmission |
| 2020 | Chevrolet | Silverado 2500 HD | N/A | Mounted on Transmission |
| 2020 | Chevrolet | Silverado 3500 HD | N/A | Mounted on Transmission |
| 2020 | GMC | Sierra 2500 HD | N/A | Mounted on Transmission |
| 2020 | GMC | Sierra 3500 HD | N/A | Mounted on Transmission |
* 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.