Genuine Mila Replacement 35/92 Latch & Deadbolt – Single Spindle Lock Box Centre Case

The Genuine Mila Replacement 35/92 Latch & Deadbolt Single Spindle Lock Box Centre Case is an authentic Mila centre gearbox engineered to restore smooth, reliable operation to your multipoint door lock. Designed for doors that operate on a lift lever mechanism, this lock case provides secure latch and deadbolt functionality while working seamlessly with a euro cylinder setup. Manufactured by Mila, a trusted name in door hardware, this replacement lock box offers the precision engineering and durability expected from an original branded component.

This lock features a 35mm backset measurement and 92mm (PZ) centres, making it compatible with a wide range of multipoint door lock systems commonly found on uPVC, composite and timber doors across the UK. The single spindle design ensures straightforward handle operation, while the fixing centres of 197mm from top fixing to bottom fixing allow for accurate alignment during installation. With an overall length of 233mm, this centre case is designed to sit perfectly within the door’s multipoint strip, replacing failed or worn gearboxes without the need to change the full mechanism.

Over time, the centre gearbox of a multipoint lock is the component that experiences the most wear due to constant handle use and locking cycles. Replacing the lock box centre case rather than the entire strip is a cost-effective and efficient way to restore your door’s locking performance back to its original standard. This genuine Mila replacement ensures that the latch retracts smoothly, the deadbolt engages securely, and the lift lever action remains consistent and reliable.

When replacing your multipoint door lock centre case, it is also the perfect opportunity to consider upgrading other key components of your door furniture. Many customers choose to replace their door handles at the same time to refresh the overall appearance of the door and ensure smooth operation. It is also highly recommended to upgrade your existing cylinder to a high security 3 star euro cylinder, significantly improving the security performance of your door while you have the lock dismantled.

For ongoing performance and longevity, regular maintenance of the gearbox is advised. Applying a light lubricant such as GT85 into the moving parts of the lock case helps keep the internal components operating freely and reduces wear over time, particularly in high-use doors.

If you require more information on how to replace a multipoint door lock gearbox correctly, please see our helpful guide here:
https://www.mbdiy.co.uk/blog/how-to/how-to-replace-a-multipoint-door-lock-gearbox/

Alternatively, you can contact our sales team for professional advice to ensure you select the correct replacement part for your door.