UPVC Door Gearboxes Roto MVD 400 Door Lock Gearbox Centre Case Replacement UPVC Mechanism 35mm

Technical Details 

A replacement centre case gearbox for the Roto MVD 400 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.

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.