Is your truck running rough, hesitating, or losing fuel efficiency due to bad intake air data? The Walker Air Charge Temperature (ACT) Sensor restores precise air-temperature readings your engine needs to perform at its best. This sensor monitors the temperature of incoming air and feeds that data to your ECM, allowing it to adjust fuel delivery and timing for optimal power and efficiency. When it fails, your engine can suffer from poor throttle response, hard starts, and reduced fuel economy. Replacing it with this direct-fit solution restores smooth drivability, consistent performance, and reliable power, whether you're daily driving or putting your truck to work.

Built to withstand harsh engine bay conditions, the Walker ACT Sensor is constructed from high-quality, heat-resistant materials that resist extreme temperature changes, vibration, and contamination. Its durable design ensures accurate signal output over time, preventing the inconsistencies that lead to drivability issues. Engineered to meet or exceed OE specifications and thoroughly tested for fit, form, and function, this sensor delivers dependable performance and long-lasting reliability in demanding diesel and gas applications.