Standard Ignition ALS1956 ABS Wheel Speed Sensor - Rear

Reliable ABS Wheel Speed Sensor for Chevrolet and GMC Trucks

The Standard Ignition ALS1956 ABS Wheel Speed Sensor is designed to provide accurate wheel speed data for Chevrolet Silverado 2500, Silverado 2500 HD, and GMC Sierra 2500 HD models. Engineered for spindle mounting, this sensor ensures consistent performance and compatibility with your heavy-duty truck's braking system.

• Connector Gender: Female with 1 oval-shaped connector
• Harness Length: 39.5 inches (1120 mm) for flexible installation
• Mounting Location: Spindle with 1 bolt hole for secure fit
• Terminal Type: Male blade terminals, quantity of 2
• Compatible with Chevrolet Silverado 2500, Silverado 2500 HD, and GMC Sierra 2500 HD

Detailed Product Description

The ALS1956 ABS Wheel Speed Sensor from Standard Ignition is specifically designed to meet the requirements of heavy-duty Chevrolet and GMC trucks. Featuring a female connector with an oval shape, this sensor connects seamlessly to the vehicle’s wiring harness. The 39.5-inch harness length provides ample reach for installation on the spindle mounting location, secured by a single bolt hole. The sensor terminals are male blade type, with two terminals ensuring reliable electrical contact. This part number ALS1956 is engineered to deliver precise wheel speed data to the ABS control module, helping maintain vehicle stability and braking efficiency.

Common Applications and Issues Addressed

• Restores ABS functionality on Chevrolet Silverado 2500 and GMC Sierra 2500 HD
• Resolves ABS warning lights caused by faulty wheel speed sensors
• Eliminates erratic or inconsistent ABS braking behavior
• Prevents wheel lockup during heavy braking conditions
• Improves traction control system performance

Installation Notes and Tips

• Ensure the spindle mounting location is clean and free of debris before installation
• Verify the connector orientation matches the female oval connector on the vehicle harness
• Secure the sensor with the single bolt hole to prevent movement or damage
• Check the wiring harness length (39.5 inches) to confirm proper routing without tension
• Test ABS system functionality after installation to confirm sensor operation

Quality Assurance and Warranty

Standard Ignition parts are manufactured to meet or exceed OEM specifications for fit, form, and function. The ALS1956 ABS Wheel Speed Sensor undergoes rigorous quality control to ensure durability and reliable performance in demanding conditions. This sensor is backed by Standard Ignition’s limited warranty, providing coverage against defects in material and workmanship under normal use.