Walker Products 210-1001 Air Charge Temperature (ACT) Sensor

The Walker Products 210-1001 Air Charge Temperature (ACT) Sensor is a direct-fit replacement sensor engineered to meet or exceed OEM fit, form, and function. Designed for precise intake air temperature monitoring, this sensor plays a critical role in your vehicle's engine management system.

Air charge temperature sensors measure the temperature and density of incoming air by detecting changes in electrical resistance, then transmit that data to the powertrain control module (PCM). The PCM uses this input — along with other sensor data — to calculate the correct fuel delivery, optimize ignition timing, and maintain a proper air-fuel mixture across all operating conditions.

Key Features:

• Direct replacement — no modifications required for installation
• Engineered to OEM specifications for precise fit and reliable performance
• Uses resistance-based temperature measurement technology for accurate readings
• Helps the ECU optimize fuel delivery, improving fuel economy and reducing emissions
• Supports cold-start efficiency and smooth engine operation
• 100% tested for performance before leaving the factory
• Manufactured by Walker Products, an ISO 9001/IATF 16949 certified company

OEM / Cross-Reference Part Numbers: 25036751, 25037034, 25037334, 25037225, 25036950, 25095187, 3854527, 38545273, 8250367510, 8250373340

Common symptoms of a failing air charge temperature sensor include poor fuel economy, rough idle, engine flooding, no-start conditions, or an illuminated check engine light. Sensor service is recommended every 25,000–35,000 miles. Walker Products has been a trusted supplier of engine management sensors and fuel system components to the automotive aftermarket since 1946.