Walker 210-1129 Air Charge Temperature Sensor

Air Charge Temperature Sensor for GM Applications

The Walker 210-1129 air charge temperature sensor measures incoming air temperature so the engine computer can adjust fuel delivery with greater accuracy. This sensor-only replacement is built for GM trucks, vans, and cars that rely on precise intake air temperature data for drivability and emissions control.

Walker Sensor Only parts focus on the sensing element and OE-style electrical connection, making them a practical choice when the original sensor has failed but the surrounding harness and mounting point remain serviceable. The 210-1129 is used across Chevrolet Colorado, GMC Canyon, Chevrolet Silverado HD, and related GM applications.

Key Features

• Air charge temperature sensor for engine management systems
• Measures intake air temperature through resistance changes
• Blade terminal design with 1 female connector and 2 male terminals
• Oblong connector shape with plug-in mounting type
• Sensor-only design for direct replacement service
• Cross-references Standard Ignition TX267 and OE number 12625041

Detailed Description

Walker 210-1129 is an air charge temperature sensor that supports accurate fuel calculation by reporting intake air temperature to the vehicle computer. That information helps the engine management system respond to changing conditions, including cold starts, load changes, and airflow through the turbocharger intercooler pipe on many GM diesel and gas applications. It is a direct-fit service part for vehicles such as Chevrolet Colorado, GMC Canyon, and Chevrolet Silverado 2500 HD/3500 HD, along with Express, Savana, and Cruze applications listed in the fitment data.

This part cross-references Standard Ignition TX267 and OE number 12625041 for the same application. The Walker 210-1129 is a practical replacement when diagnosing inaccurate air temperature readings, poor cold-start behavior, or drivability concerns tied to intake air sensing.

What It Helps Address

• Incorrect intake air temperature readings
• Hard cold starts or extended cranking
• Fuel mixture errors caused by faulty sensor input
• Reduced engine response from poor air charge data
• Emissions-related faults tied to sensor performance

Installation Notes and Tips

Verify the connector style, terminal count, and mounting type before installation. This sensor uses a blade terminal layout, one connector, and plug-in mounting, so the replacement should match the original electrical interface on the vehicle. Inspect the connector and wiring for corrosion or damage before installing the new sensor, especially on turbocharger intercooler pipe locations where heat and vibration are common.

Compatible with 2010-2022 Chevrolet Express 2500, Chevrolet Express 3500, GMC Savana 2500, GMC Savana 3500, Chevrolet Silverado HD, GMC Sierra HD, Chevrolet Colorado, GMC Canyon, and Chevrolet Cruze applications listed in the fitment data.

Quality Assurance

Walker Products is known for engine management components built for accurate sensor input and dependable OE-style service replacement. The 210-1129 is engineered to support proper air temperature reporting for GM vehicles that depend on precise sensor feedback for performance, fuel control, and emissions compliance.