GU Old Style Replacement Door Lock Gearbox Centre Case 45mm Backset

A replacement centre case gearbox for the GU old style 45mm backset multipoint door lock mechanism. If you're having problems with your door lock, the gearbox is almost always the problem and changing it to a GU Old Style Gearbox is as simple as removing a few screws.
This particular version comes with a faceplate extension but it will work as a replacement for all 45mm backset GU Old Styles. 

Information

• 45mm Backset
• 92 PZ
• 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

Technical

A full technical diagram is included in the image gallery.