3CX, 4CX
Telescopic Handlers, Wheeled Loaders, FASTRAC, Forklifts
The brake light switch is a mechanical switch that activates the brake lights when the brake pedal is pressed. It translates the pedal's movement into an electrical signal. In many JCB machines, it is also responsible for disengaging the transmission drive. If your brake lights don't work at all, stay on constantly, or the machine "pushes" against the brakes (doesn't disengage drive), these are classic symptoms of a faulty switch. A malfunctioning brake light switch is an extremely dangerous fault that makes the machine unsafe for road use.
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Maximum road safety
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High Mechanical 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 switch is fully adapted to work with the original electrical system and mountings, 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, for your own safety, always disconnect the negative (-) terminal from the battery.
Before replacing the switch, check the fuse, relay, and the condition of the wires and plug. Sometimes the problem lies there.
After installation, adjust the switch's position. It must be set to activate as soon as the pedal is pressed, but not be permanently depressed when the pedal is released.
JCB machines have separate switches for the left and right brake circuits. Always replace both at the same time to ensure correct system operation.
Answer: It is the most common cause. However, it's also worth checking the bulbs, the relevant fuse, and the condition of the wires and connector first.
Question: The machine "pushes" against the brakes. Could this switch be the culprit?Answer: Yes. In many JCB machines, the brake light switches also send a signal to the transmission to disengage the drive during braking. If a switch is faulty, this function may not work, causing excessive wear on the brakes and transmission.
Question: Does this switch fit the handbrake?Answer: No, this model is designed exclusively for the foot brake (main brake). The handbrake has a separate switch.
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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