A reliable water temperature sensor, designed for JCB JS series excavators and Sumitomo machines. It is a precision component, screwed into the thermostat housing, responsible for continuously monitoring the coolant temperature. A correct reading is essential for controlling the fan operation and preventing overheating, which is the first line of defense against engine seizure. A faulty sensor can lead to incorrect readings on the dashboard and improper engine management.
GX-AFTER is the smart choice for your machine. We provide high-class replacement parts that combine excellent quality with an attractive price. Each part is carefully verified to ensure full compatibility and reliability you can depend on.
| Brand | Type / Series / Model |
|---|---|
| JCB | Tracked and Wheeled Excavators: JS Series (JS130, JS145, JS160, JS180, JS200, JS210, JS220, JS240, JS260, JS330, JS360, JS370, JS460) |
| Sumitomo | Excavators: SH210-3, SH240-3, SH250-3 |
| Yale | Various models |
The list above is for reference. It is key to match the sensor to the specific engine model.
Before replacing the sensor, ensure the engine is completely cool. Opening the cooling system components on a hot engine can cause a violent spray of hot coolant and steam under high pressure, which can cause severe burns.
The temperature sensor is the most important guardian of your engine's life. Its failure can lead to a lack of warning about overheating, resulting in engine seizure, or to false alarms that unnecessarily interrupt work.
A faulty sensor is a ticking time bomb under your machine's hood.
Ignoring incorrect temperature readings can lead to overheating and engine seizure, which means an overhaul costing thousands. Don't work "blind" – order a new, precise GX-AFTER sensor and be confident you know your engine's condition.
📞 Can't find the part you're looking for?
No problem. Our website shows only a few thousand of the over 60,000 parts we have in stock. Contact us – we probably have what you need on the shelf!
A temperature sensor (like this one) provides a continuous, variable signal to the ECU and the in-cab gauge. A thermal switch is a simple switch that closes a circuit (e.g., turning on the fan) only when a specific, set temperature is reached. In modern machines, the computer decides when to turn on the fan based on the reading from the sensor.
2. The temperature gauge suddenly dropped to zero during operation. Is the sensor faulty?Most likely, yes. A sudden drop to zero usually indicates a break in the electrical circuit – this could be a failure of the sensor itself, but also a disconnected plug or a frayed wire. This should be checked immediately, as the engine continues to heat up without the operator being aware of it.
3. Where exactly is this sensor located?In Isuzu engines, it is most often screwed into the thermostat housing, which is located at the top of the engine where the upper radiator hose connects to the engine block. It is a small component with a two-pin connector.
Data sheet
Specific References
Manufacturer
Responsible person
See also similar products








Water temperature sensor suitable for the JCB JS excavator

















