Is your Duramax cranking without starting, randomly stalling, or throwing timing-related codes because it’s losing crank signal? The Walker Crankshaft Position Sensor restores accurate crankshaft position data to your ECM, enabling it to control fuel injection timing and engine synchronization properly. When this sensor fails, your truck can experience hard starts, misfires, poor performance, or complete no-start conditions. But replacing it with this direct-fit sensor restores reliable starting, smooth operation, and consistent power delivery you can trust.

Built to meet or exceed OEM specifications, this sensor features precision-engineered internal components designed for accurate signal output and long-term durability in harsh engine environments. It’s constructed to withstand heat, vibration, and electromagnetic interference while maintaining consistent performance. Designed as a direct-fit replacement, it installs easily and integrates seamlessly with your engine system, helping maintain proper timing, improve efficiency, and ensure dependable operation.