HomeBrake > SensorsStandard Ignition ALS1277 ABS Wheel Speed Sensor - Rear Right
Part #: ALS1277

Standard Ignition ALS1277 ABS Wheel Speed Sensor - Rear Right

Rear Right
7 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Toyota, 4Runner
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Reliable ABS Wheel Speed Sensor for Toyota 4Runner

The Standard Ignition ALS1277 ABS Wheel Speed Sensor is designed specifically for Toyota 4Runner models, ensuring accurate wheel speed data for your vehicle's anti-lock braking system. This sensor helps maintain optimal braking performance and vehicle stability under various driving conditions.

  • Compatible with Toyota 4Runner models
  • Part number ALS1277 for precise identification
  • Monitors wheel speed for ABS functionality
  • Durable construction for long-lasting performance
  • Direct replacement sensor for easy installation

Product Details and Functionality

The Standard Ignition ALS1277 ABS Wheel Speed Sensor plays a critical role in your Toyota 4Runner's braking system by providing real-time wheel speed information to the ABS control module. This data allows the ABS to modulate brake pressure and prevent wheel lockup during sudden stops or slippery conditions. Manufactured to meet OEM specifications, this sensor ensures reliable communication between the wheel and the vehicle’s electronic control systems.

Common Issues Addressed by the ALS1277 Sensor

  • ABS warning light illuminated on the dashboard
  • Intermittent or inconsistent ABS operation
  • Traction control system malfunctions
  • Unusual braking behavior or reduced stability
  • Fault codes related to wheel speed sensor failure

Installation Notes and Tips

  • Ensure the vehicle is securely lifted and supported before installation
  • Disconnect the battery to prevent electrical shorts
  • Locate the faulty ABS wheel speed sensor on the Toyota 4Runner
  • Remove the old sensor carefully to avoid damaging the mounting area
  • Install the Standard Ignition ALS1277 sensor and secure all connections
  • Clear any ABS-related fault codes after installation

Quality Assurance and Warranty Information

Standard Ignition manufactures the ALS1277 ABS Wheel Speed Sensor to meet strict quality standards, ensuring consistent performance and durability. While specific warranty details may vary, Standard Ignition typically offers coverage against defects in materials and workmanship. Refer to the product documentation or manufacturer for exact warranty terms.

BrandStandard Ignition
Part NumberALS1277
Connector GenderFemale
Connector ShapeRectangular
Harness Length - inches43.75"
Harness Length - mm1111.3
Mounting LocationSpindle
Number of Bolt Holes1
Terminal GenderMale
Terminal TypeBlade

This part fits 7 vehicles. Search below:

YearMakeModelPositionNotes
2002Toyota4RunnerRear Right
2001Toyota4RunnerRear Right
2000Toyota4RunnerRear Right
1999Toyota4RunnerRear Right
1998Toyota4RunnerRear Right
1997Toyota4RunnerRear Right
1996Toyota4RunnerRear Right

* 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:

084-44132ABS02195317835S6931695-8817159472-60848954535030ABS1387ABSD30643ARC1518V70-72-0205

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