Walker Products 211-91039 Engine Coolant Temperature Sensor (ECT) - FSK

The Walker Products 211-91039 Engine Coolant Temperature Sensor has garnered a mixed reception among users, reflecting both its effectiveness and some issues regarding compatibility and product specifications. On the positive side, many customers have praised the sensor for its functionality, citing it as a solid choice for LS motor projects at a reasonable price. The sensor delivers a three-wire temperature signal, which is crucial for maintaining accurate temperature readings on factory gauges, making it especially beneficial for those engaged in LS swaps. The product has reportedly worked well for several users, proving to be a reliable component in their engine setups. However, the reception hasn’t been universally positive. Some users expressed difficulties with the fitment, particularly noting that it did not match the thread size for certain LS heads, leading to potential compatibility issues during installation. Moreover, there was criticism regarding a lack of clear information on the thread size in the product details, which can lead to frustration for those unacquainted with the specifics of LS motor hardware. The warnings about the return policy upon opening the package also seemed to add a layer of concern for some buyers. Overall, the Walker Products Engine Coolant Temperature Sensor appears to be a satisfactory choice for many LS motor projects, provided that users do their due diligence regarding compatibility. **