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GU Old Style Replacement uPVC Gear Box Door Lock Centre Case 35mm Backset


GU Old Style Door Lock Gearbox Centre Case

High quality & All metal Parts

A replacement centre case gearbox for the GU old style multipoint door lock mechanism. If you're having problems with your door lock, the gearbox is almost always the problem and changing it is as simple as removing a few screws.

Product Information

  • Important Measurements: 35mm Backset / 92pz Centres
  • This is the mechanism inside the door that is operated by the handle.
  • Most likely to be the problem when a lock fails.
  • Reversible latch for left or right handed doors

Fitting Advice

Gearbox is easily reattached to the locking strip via three star head screws.

The diagram below gives all sizes needed to identify the lock, however, if you need more information please contact us.

Write Review

  1. If only....... 5

    Posted by Michael on 3rd Feb 2019

    Every business took things seriously enough to supply good quality replacement parts that fit and operate correctly as DIY store does life would be a breeze.
    Excellent drawings of the product with dimensions makes the whole job of ordering a pleasure.
    Firmly logged in the memory bank for the next time I require any spare parts, first class all round would recommend to anyone.

  2. replacement door gearbox 5

    Posted by Robert Lock on 30th Nov 2018

    Great efficient service from this company website made it easy to locate the correct part I needed to repair door new part fitted in 20 minutes now working like new very cost effective really pleased with result

  3. great value 4

    Posted by Unknown on 4th Nov 2018

    Great value for money good delivery service easy product to fit saves buying a new door