HomeTransmission > SensorsStandard Ignition SC284 Automatic Transmission Output Shaft Speed Sensor
Part #: SC284

Standard Ignition SC284 Automatic Transmission Output Shaft Speed Sensor

8 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$341.24Free 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: Toyota, Previa and 4Runner
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Standard Ignition SC284 Output Shaft Speed Sensor

The Standard Ignition SC284 is a new automatic transmission output shaft speed sensor designed for select Toyota vehicles, including the 4Runner, Pickup, and Previa models. This sensor plays a critical role in monitoring transmission output speed to ensure smooth shifting and optimal vehicle performance.

  • Attachment Method: Bolt mount for secure installation
  • Color/Finish: Silver and black for durability and corrosion resistance
  • Connector Type: Female, rectangular plug-in connector with one connector and three blade terminals
  • Mounting: Single mounting hole with one bolt hole for precise fit
  • New part with no wiring harness, dust shield, or mounting hardware included

Detailed Product Description

The Standard Ignition SC284 automatic transmission output shaft speed sensor is engineered to provide accurate speed data from the transmission output shaft to the vehicle’s control module. Featuring a bolt mount attachment method, this sensor ensures a stable and reliable connection. The sensor’s female rectangular plug-in connector with three male blade terminals facilitates straightforward electrical integration without the need for additional wiring harnesses. Its silver and black finish offers resistance to environmental factors, contributing to long-term durability. This sensor is specifically compatible with Toyota 4Runner, Pickup, and Previa models, making it a precise replacement part for these vehicles.

Common Applications and Issues Addressed

  • Helps resolve erratic or delayed automatic transmission shifting
  • Prevents transmission slipping caused by inaccurate speed readings
  • Eliminates transmission warning lights related to output shaft speed sensor faults
  • Improves overall transmission performance and drivability
  • Addresses sensor failure symptoms such as harsh shifting or transmission hesitation

Installation Notes and Tips

  • Ensure the vehicle is safely lifted and supported before sensor replacement
  • Use the existing bolt hole for mounting; no additional hardware is included
  • Verify connector orientation matches the female rectangular plug-in style
  • Check for clean mounting surface to avoid sensor misalignment
  • Test sensor operation after installation to confirm proper transmission function

Quality Assurance and Warranty

The Standard Ignition SC284 sensor is a new, OEM-quality replacement part manufactured to meet or exceed original equipment specifications. While no mounting hardware or wiring harness is included, the sensor is designed for direct fitment on compatible Toyota models. Standard Ignition products typically come with a limited warranty covering defects in materials and workmanship; please refer to the product documentation or manufacturer for specific warranty details.

BrandStandard Ignition
Part NumberSC284
Connector GenderFemale
Connector ShapeRectangular
Connector TypePlug In
Mounting LocationTrans Mount
Mounting TypeBolt Mount
Terminal GenderMale
Terminal TypeBlade

This part fits 8 vehicles. Search below:

YearMakeModelDrive TypeTransmissionLitersCylindersPositionNotes
1997ToyotaPreviaAWDN/A
1996ToyotaPreviaAWDN/A
1995ToyotaPickupAutomatic3.0LV6N/A
1995ToyotaPreviaAWDN/A
1994Toyota4Runner4WDAutomatic3.0LV6N/A
1994ToyotaPreviaAWDN/A
1993Toyota4Runner4WDAutomatic3.0LV6N/A
1992Toyota4Runner4WDAutomatic3.0LV6N/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:

090-504913-02255S489272-3879757128318135051SN7219SU6252VSS819

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