HomeTransmission > SensorsStandard Ignition SC835 Automatic Transmission Output Shaft Speed Sensor
Part #: SC835

Standard Ignition SC835 Automatic Transmission Output Shaft Speed Sensor

20 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$39.26Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Chevrolet and GMC, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500 HD, and Silverado 3500 HD
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

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.

BrandStandard Ignition
Part NumberSC835
Attachment MethodBolt on
Color/FinishBlack , gray
Connector GenderFemale
Connector Quantity1
Connector ShapeRectangle
Connector TypePlug in
Dust Shield IncludedNo
Hardware IncludedBolt
Mounting Bracket(s) IncludedNo
Mounting Hardware IncludedYes
Mounting Hole Quantity1
Mounting LocationOn transmission
Mounting TypeBolt mount
New or RemanNew
Number of Bolt Holes1
Number of wires2
Terminal GenderFemale
Terminal Quantity2
Terminal TypeBlade
Wiring Harness IncludedYes

This part fits 20 vehicles. Search below:

YearMakeModelPositionNotes
2024ChevroletSilverado 2500 HDN/AMounted on Transmission
2024ChevroletSilverado 3500 HDN/AMounted on Transmission
2024GMCSierra 2500 HDN/AMounted on Transmission
2024GMCSierra 3500 HDN/AMounted on Transmission
2023ChevroletSilverado 2500 HDN/AMounted on Transmission
2023ChevroletSilverado 3500 HDN/AMounted on Transmission
2023GMCSierra 2500 HDN/AMounted on Transmission
2023GMCSierra 3500 HDN/AMounted on Transmission
2022ChevroletSilverado 2500 HDN/AMounted on Transmission
2022ChevroletSilverado 3500 HDN/AMounted on Transmission
2022GMCSierra 2500 HDN/AMounted on Transmission
2022GMCSierra 3500 HDN/AMounted on Transmission
2021ChevroletSilverado 2500 HDN/AMounted on Transmission
2021ChevroletSilverado 3500 HDN/AMounted on Transmission
2021GMCSierra 2500 HDN/AMounted on Transmission
2021GMCSierra 3500 HDN/AMounted on Transmission
2020ChevroletSilverado 2500 HDN/AMounted on Transmission
2020ChevroletSilverado 3500 HDN/AMounted on Transmission
2020GMCSierra 2500 HDN/AMounted on Transmission
2020GMCSierra 3500 HDN/AMounted 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:

24043904SN8536VSS1369VSSA353

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