Walker Crankshaft Position Sensor 04.5-05 GM 6.6L Duramax LLY

Need to fix a no-start, stalling, or loss of RPM signal issue on your Duramax? The Walker Crankshaft Position Sensor is a direct-fit replacement that restores accurate crankshaft position sensor data on 6.6L LLY Duramax engines. When the crankshaft position sensor fails, your ECU loses critical timing reference, which can lead to hard starts, misfires, poor performance, or a complete no-start condition. This sensor restores that essential signal, keeping your fuel injection timing and engine operation consistent, reliable, and dialed in.

Built to meet OE fit, form, and function, the Walker CKP sensor uses high-quality internal components engineered to maintain precise signal output under extreme heat, vibration, and continuous engine cycling. The sensor is designed to withstand harsh conditions, such as heat cycling, contamination, and long-term wear, which are common causes of factory sensors failing over time. Each unit is engineered and tested to OE specifications, ensuring accurate communication with the ECU for dependable engine timing, consistent performance, and long-term durability.