Is your Duramax throwing EGT-related codes, struggling with regen control, or losing efficiency because it can’t accurately read exhaust temps before the emissions system? The Walker Exhaust Gas Temperature Sensor restores precise temperature feedback at a critical point in the exhaust stream, either before the DPF or in the turbo downpipe. When this front sensor fails, your ECM can’t properly manage fueling, turbo operation, or emissions strategy, leading to poor performance, excessive regen cycles, and drivability issues. Replacing it with this direct-fit sensor restores your truck to smooth, efficient operation and reliable temperature monitoring under all conditions.

Built to meet or exceed OEM specifications, this sensor uses high-quality metals and ceramic components designed to withstand extreme exhaust heat, vibration, and contamination. Engineered for precise response and long-term durability, it delivers stable, accurate readings even in harsh diesel environments. With an OE-style fit and connector, installation is quick and straightforward, and each unit is 100% tested to ensure dependable performance, helping your engine and emissions system operate correctly.