A high-quality engine oil pressure sensor, which screws into the engine block. Its purpose is to accurately measure the oil pressure in the lubrication system and transmit this information to the gauge on the operator's dashboard. It is a key component of the early warning system against engine seizure, protecting it from serious and costly damage caused by a lack of lubrication.
Aftermarket quality product – an intelligent choice combining excellent quality with an attractive price.
| Brand (Machine Type) | Model |
|---|---|
| JCB (Backhoe Loaders) | 3CX, 4CX (with Perkins AR, AK engines) |
| JCB (Wheel Loaders) | 406, 407, 408, 409 |
| JCB (Skid Steer Loaders) | ROBOT 190, 1105, 1110 |
| JCB (Tractors) | FASTRAC 125, 130, 145 |
| JCB (Other) | Telehandlers, JS Excavators |
The list above is for reference. It is crucial to ensure that your machine is fitted with a Perkins engine that uses this sensor.
Replacing the sensor is a perfect opportunity to check the condition and level of the engine oil. If it is old or contaminated, replace it with new, high-quality HYPTRON oil, which will provide optimal lubrication and protect the engine.
The oil pressure sensor is a key component of the engine protection system. Its failure can lead to a lack of information about low pressure, which can result in a seized turbocharger, crankshaft, and consequently a major engine overhaul.
Replace the sensor if:
A faulty sensor risks engine seizure.
The cost of replacing a sensor is negligible compared to an engine overhaul. Protect your machine from the worst-case scenario – order a new GX-AFTER sensor today and be sure you will always know about an oil pressure problem in time.
That's one of the possible causes. Before replacing the sensor, **immediately shut down the engine** and check the oil level. If the level is correct, the next step is to check the oil pressure with a mechanical gauge. Only after ruling out actual lubrication problems can you suspect a faulty sensor or its electrical circuit.
2. What is the difference between an engine oil pressure sensor and a transmission oil pressure sensor?Although they both measure pressure, they are completely different parts. They differ in their pressure range, thread type, and connector. You should always use the sensor dedicated to the specific system to ensure correct readings and avoid damage.
3. How can I test if my old sensor is faulty?The easiest test is to swap it with a new, working sensor. You can also use a multimeter to check if the sensor correctly opens and closes the circuit. After disconnecting the wire and starting the engine, the light should not be on. After grounding the wire to the engine block, the light should illuminate. If this happens, but it doesn't with the sensor connected, the sensor is faulty.
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Engine Protection
Prevents seizure and costly failures.
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Precise Reading
Gives confidence in the lubrication system's operation.
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Perfect Fit
Compatible with many JCB machine models.
Have doubts or need confirmation to avoid costly downtime? Call us. Our experts will help you choose the right part to get your equipment back to work as soon as possible.
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Fits JCB 3CX 4CX with Perkins AR AK engine.

















