GU genuine gearbox to suit new style GU locks only, not compatible with old style versions. Also stamped DGS.

New style GU gearboxes are available in a variety of different operations and are one of the biggest ranges of backsets on the market. They are available in 28mm, 35mm, 40mm, 45mm and 55mm backsets with lift lever function, 35mm and 45mm with split spindle function, and 35mm only with the Europa Plus fast locking function.

New style GU locks can be differentiated from their old style equivalents by the shape at the top of the gearbox. Old style locks have the top corner removed, whereas new versions feature a vertical groove to help with bolts for handles. The two gearboxes are not compatible, so a new style gearbox will not fit on an old style multipoint lock.

GU multipoint lock gearboxes feature a latch and deadbolt and measure 191mm high (excluding the fixing lugs) by the backset + 16mm wide. The latch is 32mm high, the deadbolt measures 35mm high and there is 54mm from the bottom of the latch to the top of the deadbolt.

GU gearboxes are fixed to their faceplates with 3 screws. The distance from the top to the middle screw is 108mm, while the middle screw to the bottom screw is 92mm.

Always allow 2mm when measuring your backset and the faceplate is still attached to the gearbox.

Will fit new style GU locks only, not compatible with old style versions.

We stock a range of associated products for GU Europa gearboxes, including multipoint door locks, keeps, spindles, handles, and accessories.

Operation: Lift lever

Latch reversal: Twist latch into desired position.

To lock the door

1. Lift the handle upwards to engage the locking points.

2. Lock the locking points and main deadbolt (if present) by turning the key.

To unlock the door

1. Unlock the system by turning the key.

2. Push the handle downwards to disengage the locking points and retract the latch.