3CX, 4CX
Excavators, Forklifts, Wheeled Loaders, Telescopic Handlers, Generators
The water temperature sensor is a key informational component for the Engine Control Unit (ECU). Its job is to accurately measure the coolant temperature and transmit a signal to the controller, which then adjusts fuel injection and timing. If your machine is hard to start, emits black smoke, runs rough, or its fuel consumption has sharply increased, these are classic symptoms of a faulty sensor. A malfunctioning sensor can send incorrect information to the ECU (e.g., that the engine is always cold), leading to over-fueling and improper engine operation.
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Precise Measurement
Optimal performance and low fuel consumption
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High Durability
Long life in harsh conditions
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Perfect Fit
Guaranteed hassle-free installation
The accuracy and quality of materials guarantee long and trouble-free use without the need for frequent replacement.
The sensor is fully adapted to work with the original JCB wiring and ECU, ensuring a consistent repair.
The GX-AFTER brand is a proven and safe alternative that offers quality comparable to original parts at a much better price.
Before starting any work on the electrical system, always disconnect the negative (-) terminal from the battery for your own safety.
Before unscrewing the sensor, drain the coolant to a level below the cylinder head to avoid spillage.
Ensure the plug and wires leading to the sensor are in good condition, not frayed or oily, to ensure a correct reading.
Use a torque wrench to tighten the sensor to the manufacturer's recommended specification. Overtightening can damage the thread in the cylinder head.
Answer: Yes, it is very likely. If a faulty sensor sends a signal to the computer that the engine is cold (even when it's hot), the ECU increases the fuel dose, causing black smoke and increased fuel consumption.
Question: What is the difference between this sensor and the one for the dashboard gauge?Answer: This sensor sends a signal directly to the engine's computer (ECU). The machine has a second, separate sensor (usually 1-pin) which is responsible only for the temperature gauge reading on the dash.
Question: Do I need a new gasket for installation?Answer: Yes, it is recommended to use a new copper washer or a suitable thread sealant to guarantee a 100% leak-proof connection and avoid coolant leaks.
If you are unsure whether the selected product is suitable for your machine, contact us and we will help you choose the right part and provide practical advice in minutes.
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