Replacement Fuhr door lock centre case gearbox for uPVC doors, displayed in multiple views to show the gears and mechanisms.
Diagram illustrating how to measure a Mila uPVC door lock centre case gearbox, showing the "Backset" (A) and "PZ" (B) dimensions for correct fitting.
Replacement Fuhr door lock centre case gearbox for uPVC doors, displayed in multiple views to show the gears and mechanisms.
Diagram illustrating how to measure a Mila uPVC door lock centre case gearbox, showing the "Backset" (A) and "PZ" (B) dimensions for correct fitting.
Fuhr

Fuhr Gearbox – Replacement Centre Case for uPVC Multipoint Door Lock – 25mm to 35mm Backset 92mm PZFuhr Gearbox - 35mm Backset - 92mm PZ

5 reviews
£35.99 SKU: HS3281
Backet
Lock Operation
Backet
Lock Operation
Order by 2pm for same-day dispatch
Klarna

Pay in 4 installments of [klarna_payment]

Learn more
Eye visibility icon in black, representing monitoring, visibility, or visual deterrence, displayed on a transparent background.

Same-day dispatch on orders before 2pm

The gearbox is the most common part to fail on a Fuhr multipoint lock — replace just this centre case, not the full strip, and save.Check your backset is 25mm to 35mm before ordering.

Key benefits
  • Direct Fuhr replacement - 25-35mm backset, 92mm PZ
  • Restores multipoint lock function - saves replacing the full strip
  • Standard Fuhr dimensions - measure your case before ordering
Product overview

Fuhr Replacement Gearbox

This is a replacement Fuhr door lock centre case, commonly used on uPVC doors. It is the part that is most likely to be at fault when a lock fails and becomes unusable.

Replacing the gearbox is cost effective as it saves having to buy a complete new lock and it is quite easily achieved.

Key Measurements

PZ handle centres: 92mm.

Available in 25mm, 30mm, 35mm Backset.

Reversible latch. Non-handed, fitting both left and right-handed doors. Single or split spindle operation.

Important Note

Fuhr manufacture multipoint locks for many other companies, so this gearbox may be a suitable replacement even if your door does not have a Fuhr branded lock.
Delivery & Returns

How much is delivery?

UK Mainland Delivery is £2.99 on all items no matter how many you order!

Northern Ireland, Scottish Highlands, Channel Islands £6.00.

We do not offer International Delivery (Ireland, France, Spain etc).

When will my order be dispatched?

Orders before 3pm (Monday to Friday) are usually dispatched same day but may take up to 24 hours.

When will I receive my item?

We ship on 2 working day courier. Fully Tracked. Tracking will be emailed on dispatch. 

Special order items such as keyed alike locks will take longer to dispatch. Please refer to product description for lead times. 

I haven't received my item?

Please email us your name, order number and date of purchase.

We prefer email as it allows us time to research and respond.

Returns Information

We operate a 30 day refunds and return policy. 

If you change your mind you must return the product back to us within 30 days of delivery

Please include a copy of your invoice and a note stating reason for return. 

Additional keys, locks keyed alike or built to code are non refundable as they are personalised made to order goods.

Any refund, which is due to a fault or other defect, will include a refund of the applicable delivery charges otherwise not. 

It is the buyers responsibility to arrange the return of goods to us. We do not offer a collection service for returning items. 

Items must be returned including original product packaging and accessories.

We reserve the right to refuse any returns that do not comply with this policy.

Please post returns to the following address:

Home Secure (Online)

Unit 5, Brookfield Drive

Liverpool, L9 7AJ

United Kingdom

Frequently Asked Questions

A Fuhr door lock centre case gearbox is the main mechanism within a multi-point locking system. It controls the operation of the latch, deadbolt, and locking points when the handle or key is used.

Common signs include a loose or stiff handle, difficulty locking or unlocking the door, or the lock failing to engage properly. If these issues occur, the gearbox may be worn or damaged and require replacement. For a step-by-step guide, see How to Change Over a uPVC Multipoint Door Lock.

This gearbox is specifically designed for Fuhr multi-point locking systems. It’s important to match the model and measurements with your existing lock to ensure proper compatibility.

Yes, if you have basic DIY skills, you can replace the gearbox by removing the door handle and lock strip. Following a detailed guide can make the process easier and ensure correct installation.

Replacing only the gearbox is often more cost-effective and quicker than changing the entire locking system. It restores the functionality of your door without needing a full lock replacement.