The Fullex Door Centre Gearbox is a high-quality replacement gearbox for older style doors, offering exceptional durability and security. This gearbox features a 37mm backset and 68mm PZ (distance from the spindle to the centre of the key cylinder), making it compatible with a wide range of door lock systems. Ideal for replacing worn or damaged gearboxes, it ensures smooth operation and reliable performance for continued security.
Perfect for those looking to maintain or restore the functionality of older door lock mechanisms, this gearbox is easy to install and fits seamlessly into existing door structures. Whether you're upgrading security or replacing a faulty part, the Fullex Door Centre Gearbox is a trusted choice.
Key Features:
- 37mm Backset: Standard fit for many door locking systems, ensuring easy installation.
- 68mm PZ: Accurate distance from the spindle to the centre of the key cylinder for compatibility with existing locks.
- Old-Style Design: Ideal for retrofitting and replacing old or worn-out gearboxes.
- Reliable Performance: Ensures smooth, long-lasting functionality for your door security system.
- Easy Installation: Quick and hassle-free installation with minimal adjustments needed

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Images are for reference only, showing products from different angles. The quantity shown may not reflect what you purchase, usually only one item is supplied unless stated otherwise.
Any advice is for general guidance only. We cannot guarantee products will meet your specific needs or usage. Please check all measurements and specifications before purchase, as we are not responsible for incorrect advice or items ordered in error. Return costs in such cases are the customer’s responsibility.




