Walker Engine Coolant Temperature Sensor With Pigtail 94-00 GM 6.5L Detroit

Need to fix overheating concerns, poor fuel economy, or a check engine light caused by bad coolant temperature readings? The Walker Engine Coolant Temperature (ECT) Sensor with Pigtail is a direct-fit replacement designed to restore accurate coolant temperature data when the factory sensor or connector starts to fail. The ECT sensor is critical for engine management. When it sends incorrect readings, it can throw off fuel delivery, timing strategy, fan operation, and cold start behavior, leading to drivability issues and inconsistent performance. This kit solves the problem by replacing both the sensor and the pigtail in a single, clean repair, restoring reliable temperature input to the ECU.

Built to OE fit, form, and function standards, the sensor uses durable internal thermistor components engineered to withstand constant heat cycling and long-term exposure to coolant system conditions. The housing is designed to resist corrosion, moisture intrusion, and vibration, all of which commonly cause sensor drift or failure over time. The included pigtail provides a secure, weather-tight electrical connection to eliminate signal loss caused by worn or corroded factory wiring. Each unit is fully tested to OE specifications to ensure accurate temperature signal output and consistent communication with the ECU for stable engine operation and long-term reliability.