Walker Manifold Absolute Pressure (MAP) Sensor 17-20 GM 6.6L Duramax L5P

Is your truck suffering from poor acceleration, rough running, or random check engine lights that just won’t go away? The Walker MAP Sensor is the key to restoring proper engine performance by delivering accurate intake pressure data straight to your ECM. When your MAP sensor starts to fail, your truck can’t correctly calculate air-to-fuel ratios, leading to sluggish power, poor fuel economy, and inconsistent drivability. Replacing it with this direct-fit solution brings your Duramax back to life with smooth power delivery, better efficiency, and reliable operation when you need it most. Built to meet or exceed OEM specifications, this MAP sensor features high-quality internal electronics that withstand extreme engine bay conditions. The durable housing protects against heat cycling, vibration, and contaminants that commonly cause sensor failure over time. Featuring a factory-style connector and precision calibration, it ensures a secure, weather-resistant connection and consistent signal output. Each sensor is fully engineered and tested to deliver OE-level fit, form, and function for long-term reliability.