MACO Window Gearbox Lock With 340mm Arms Non Crop

The MACO Non-Crop Window Gearbox Lock with 340mm arms is a replacement locking mechanism designed for compatible uPVC window systems. This gearbox is available with either a 20mm or 22mm backset and is supplied complete with a cover plate, making it suitable for replacing worn, damaged or failed MACO window locking gearboxes. Unlike croppable versions, this model features fixed 340mm locking arms, so it is important to compare the measurements and layout of your existing gearbox before ordering. Key Features MACO replacement window gearbox lock 340mm fixed locking arms Available with 20mm or 22mm backset Supplied with cover plate Non-croppable / fixed-length design Suitable for compatible uPVC window locking systems Ideal replacement for worn, damaged or failed window gearboxes Strong steel construction Designed to operate the existing window locking points Suitable for professional repairs and DIY replacement Important Please select the correct 20mm or 22mm backset to match your existing gearbox. This is the non-crop version with 340mm arms and is supplied with the cover plate. Please compare the dimensions, fixing points, backset and overall design with your existing MACO window lock before ordering to ensure compatibility. Replacing a failed gearbox can be a cost-effective way to restore the operation of your uPVC window without replacing the complete window or locking system.