Walker 210-1046 Ambient Air Temperature Sensor

Ambient Air Temperature Sensor for GM Applications

Walker Products 210-1046 is an ambient air temperature sensor built for vehicles that rely on accurate outside-air temperature input for HVAC and engine management functions. It is a direct-fit replacement for a wide range of Chevrolet, GMC, Cadillac, Buick, Saturn, Hummer, and Oldsmobile applications, including Silverado, Sierra, Tahoe, Yukon, Escalade, and Trailblazer models.

Walker Products has supplied automotive fuel system and engine sensor components since 1946, with manufacturing and engineering support focused on meeting or exceeding OEM standards. Part number 210-1046 is part of that sensor lineup and is backed by the company’s ISO 9001/IATF16949 quality systems.

Key Features

• Ambient air temperature sensor for HVAC and related vehicle temperature input systems
• Direct replacement for select GM trucks, SUVs, and crossovers
• Built to meet or exceed OEM standards and specifications
• Supported by Walker Products engineering and technical documentation
• Cross-references Gates AX78 for the same application

Detailed Description

Walker Products 210-1046 is engineered for accurate ambient temperature sensing across a broad range of GM platforms. It supports vehicles such as the Chevrolet Silverado 1500, GMC Sierra 1500, Cadillac Escalade, and Chevrolet Tahoe, making it a practical replacement when the original sensor is damaged, inaccurate, or no longer responding correctly. This part number 210-1046 is also listed with interchange references including 5S1148, ATS38, SU1519, and WT5520.

Compatible With 2000-2006 Chevrolet Tahoe, 2000-2006 GMC Yukon, and 2003-2007 Hummer H2 applications, this sensor helps maintain reliable ambient temperature input for the vehicle’s climate control and display functions. It also covers select models with bracket notes, including certain Buick, Chevrolet, GMC, and Oldsmobile applications.

What This Sensor Helps Address

• Incorrect outside temperature readings on the dash or HVAC display
• Intermittent or failed ambient air temperature signal
• Climate control behavior affected by inaccurate temperature input
• Sensor damage from age, road debris, or exposure
• Replacement needs on GM trucks and SUVs with original sensor wear

Installation Notes and Tips

Verify the connector style, mounting location, and bracket requirement before installation. Some applications list a bracket in the fitment notes, so confirm the vehicle-specific configuration before ordering. Compare the original sensor and connector to the replacement part number 210-1046 to ensure proper fitment on Chevrolet Silverado, GMC Sierra, and related GM models.

Quality Assurance

Walker Products manufactures engine sensors and fuel system components to OEM-level standards and supports production with in-house engineering, product management, and technical documentation. The company is ISO 9001/IATF16949 certified, reflecting controlled manufacturing and quality processes for automotive aftermarket parts.