Is your truck running rough, hesitating under load, or struggling with poor fuel economy? The Walker Mass Air Flow (MAF) Sensor gets your engine the accurate airflow data it needs to perform at its best. By precisely measuring the amount of air entering your intake, this sensor allows your ECM to calculate the correct fuel delivery and maintain an optimal air‑to‑fuel ratio. A failing MAF can cause check engine lights, uneven acceleration, and a lackluster throttle response, but replacing it with this direct‑fit unit helps restore smooth performance, improved efficiency, and consistent power, whether you’re towing, hauling, or cruising down the highway.

Built for reliability in demanding engine environments, the Walker MAF Sensor is constructed with high‑quality components designed to withstand heat, vibration, and contamination from the intake system. Its robust design protects sensitive sensing elements while maintaining fast, accurate response times. Engineered to meet OE specifications and 100% tested for fit and performance, this sensor delivers dependable operation and long‑lasting service life in harsh diesel applications.