3CX, 4CX
The door lock mechanism is a key safety and comfort component, responsible for properly latching the cabin door. If your door doesn't close properly ("bounces back"), you have trouble opening it from the inside or outside, the handle is loose and offers no resistance, or the lock doesn't respond to the key, these are classic symptoms of a worn or damaged mechanism. A faulty lock poses a risk of the door opening during operation, facilitates theft, and allows water and dust into the cabin.
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Secure Latching
Safety and protection
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Durable Construction
Long life in harsh conditions
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Perfect Fit
"Plug & play" installation
The accuracy and quality of materials guarantee long and trouble-free use without the need for frequent replacement.
The lock is fully adapted to work with original handles, rods, and the striker, 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 installation, generously lubricate all moving parts of the new mechanism. Use a high-quality grease, such as HYPTRON.
After installing the lock, check the alignment of the striker plate on the cab pillar. If necessary, adjust its position to ensure the door closes smoothly and without force.
Closing problems often result from a sagging door on worn hinges. While replacing the lock, check the hinge pins and bushes.
The kit does not include the rods that connect the lock to the handles. You need to transfer them from the old lock, checking the condition of the plastic clips.
Answer: Yes, this is the most common symptom of a worn latch mechanism in the lock. It can also be caused by a sagging door on its hinges and poor adjustment of the striker on the pillar.
Question: Will this lock fit newer machines made after 2001?Answer: No, this model is designed for machines produced between 1997-2001. Newer models require a different type of lock.
Question: Are keys included in the set?Answer: No, this product is the lock mechanism only. It does not include the key cylinder or handles, which must be transferred from the old door or purchased separately.
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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