HomeTransmission > SensorsStandard Ignition SC799 Automatic Transmission Input Shaft Speed Sensor
Part #: SC799

Standard Ignition SC799 Automatic Transmission Input Shaft Speed Sensor

⚙️ 14 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Subaru, Crosstrek, Forester, Legacy, and Outback
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Reliable Automatic Transmission Input Shaft Speed Sensor

The Standard Ignition SC799 Automatic Transmission Input Shaft Speed Sensor is designed to provide accurate speed readings for your Subaru vehicle's transmission system. Engineered for direct bolt-on installation, this sensor ensures precise monitoring of input shaft speed to support smooth transmission operation.

  • Direct bolt-on attachment method for secure mounting
  • Gray finish with a single oval-shaped female connector
  • Plug-in connector type with three male blade terminals
  • Designed for transmission mount with one bolt hole
  • New OEM replacement part for Subaru Crosstrek, Forester, Legacy, and Outback

Product Details and Specifications

The SC799 sensor from Standard Ignition features a bolt mount design with one bolt hole, allowing for straightforward installation on the transmission mount. Its gray color finish and oval-shaped female connector provide compatibility with the original equipment setup. The sensor includes a plug-in connector type with three male blade terminals, ensuring reliable electrical connections without the need for additional wiring harnesses or mounting hardware. This new sensor is an OEM replacement part, specifically engineered to meet the standards required for Subaru Crosstrek, Forester, Legacy, and Outback models.

Compatible Subaru Models and Applications

This Automatic Transmission Input Shaft Speed Sensor is compatible with the following Subaru vehicles:

  • Subaru Crosstrek
  • Subaru Forester
  • Subaru Legacy
  • Subaru Outback

Common Issues Addressed by the SC799 Sensor

  • Erratic or inaccurate transmission speed readings
  • Transmission shifting problems or delays
  • Check engine light related to transmission speed sensor faults
  • Intermittent loss of communication with the transmission control module
  • Reduced transmission performance or drivability concerns

Installation Notes and Tips

The SC799 sensor installs directly onto the transmission mount using a single bolt hole. It is important to ensure the mounting surface is clean and free of debris before installation. The sensor features a female oval plug-in connector that mates with the vehicle’s wiring harness, which is not included. No additional mounting hardware or wiring harness is provided, so retain the original components during replacement. Proper torque specifications should be followed to avoid sensor damage.

Quality Assurance and Warranty

Standard Ignition provides this SC799 sensor as a new OEM replacement part, manufactured to meet or exceed original equipment specifications. While specific warranty details are not provided here, Standard Ignition parts typically come with a limited warranty against defects in materials and workmanship. For exact warranty terms, consult the product documentation or manufacturer.

BrandStandard Ignition
Part NumberSC799
Attachment MethodBolt on
Color/FinishGray
Connector GenderFemale
Connector Quantity1
Connector ShapeOval
Connector TypePlug in
Hardware IncludedNo
Harness Length - cmNo wire
Harness Length - inchesW/o harness
Mounting Bracket(s) IncludedNo
Mounting Hardware IncludedNo
Mounting LocationTrans mount
Mounting TypeBolt mount
New or RemanNew
Number of Bolt Holes1
O.E.M. ReplacementYes
Terminal GenderMale
Terminal Quantity3
Terminal TypeBlade
Wiring Harness IncludedNo

This part fits 14 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2023SubaruCrosstrekN/ASecondary
2023SubaruOutback2.5LH4N/AAutomatic Transmission Input Sensor
2022SubaruCrosstrekN/ASecondary
2022SubaruForesterN/AAutomatic Transmission Input Sensor
2022SubaruLegacy2.5LH4N/A
2022SubaruOutback2.5LH4N/AAutomatic Transmission Input Sensor
2021SubaruCrosstrekN/ASecondary
2021SubaruForesterN/AMounted on Transmission
2021SubaruLegacy2.5LH4N/A
2021SubaruOutback2.5LH4N/A
2020SubaruCrosstrekN/ASecondary
2020SubaruLegacy2.5LH4N/AAutomatic Transmission Input Sensor
2020SubaruOutback2.5LH4N/A
2019SubaruCrosstrekN/AAutomatic Transmission Input Sensor

* 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:

31937AA190SC799SN8501VSS1333VSSA314

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.