Fullex XL Multipoint Replacement Gearbox Door Lock 35mm / 45mm Backset

Restore your door lock without replacing the complete multipoint locking system with this Fullex XL Multipoint Replacement Gearbox. Designed as a replacement centre gearbox for compatible Fullex XL multipoint door locks, its an ideal solution when the existing gearbox has become worn, stiff or faulty.

Available in 35mm and 45mm backset options, this gearbox is fully reversible, making it suitable for both left- and right-handed door applications where compatible.

Product Specifications

• Backset: 35mm & 45mm
• Top PZ: 92mm distance from centre of top spindle to centre of Euro profile cylinder
• Bottom PZ: 62mm distance from centre of bottom spindle to centre of Euro profile cylinder
• Case Height: 230mm
• Case Width: Backset + 15mm
• Spindle Size: 8mm
• Handing: Fully reversible

Key Features

• Fullex XL replacement gearbox
• Choice of 35mm or 45mm backset
• 92mm top PZ / 62mm bottom PZ
• Fully reversible for left- or right-handed door applications
• Suitable for compatible Fullex XL multipoint door locks
• Ideal for repairing worn, stiff or faulty locking mechanisms
• Suitable for many uPVC and composite doors
• Replace the centre gearbox rather than the complete multipoint locking strip where compatible
• Suitable for professional locksmith, trade and DIY door repairs

Please Check Before Ordering

Multipoint gearboxes can look very similar but may have different measurements and specifications. Please compare your existing gearbox carefully with the product images and measurements before ordering.

Check the backset, PZ measurements, case dimensions and spindle size to ensure compatibility with your existing Fullex XL locking mechanism.

Need help identifying your lock? Send us clear photos of your existing gearbox and locking strip, along with any visible markings, and well help you identify the correct replacement.