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.
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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 Gearbox – Replacement Centre Case for uPVC Multipoint Door Lock – 25mm to 45mm Backset 92mm PZ

FuhrSKU: HS3281
Price:
£35.99

Key benefits

  • Direct Fuhr replacement - 25-45mm backset, 92mm PZ
  • Restores multipoint lock function - saves replacing the full strip
  • Standard Fuhr dimensions - measure your case before ordering
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Description

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 or 45mm 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.

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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.