MACO CTS Door Lock Gearbox – 35mm or 45mm Backset, 92mm PZ

MACO CTS Replacement Door Lock Gearbox – 35mm & 45mm Backset, 92mm PZ

Replace a worn, damaged or faulty door lock mechanism with this MACO CTS Replacement Gearbox, designed for compatible uPVC and composite door multipoint locking systems.

Available in 35mm and 45mm backset options, this MACO CTS multipoint door lock centre gearbox features 92mm PZ centres, a 200mm gearbox case height and an 8mm spindle.

Ideal when the centre gearbox mechanism has failed but the rest of the multipoint lock remains serviceable, this replacement unit can provide a cost-effective alternative to replacing the complete locking strip.

Whether you're replacing a jammed mechanism, repairing a faulty door handle operation or restoring an existing multipoint locking system, it's important to match the original gearbox measurements and design before ordering.

Key Features

• MACO CTS replacement gearbox – Genuine-style replacement centre case for compatible MACO CTS door locks.

• uPVC & Composite Doors – Suitable for compatible uPVC and composite door locking mechanisms.

• Multipoint Lock Compatibility – Designed for use with compatible MACO CTS multipoint locking systems.

• 35mm or 45mm Backset – Two available sizes to match your existing gearbox.

• 92mm PZ Centres – Standard measurement from the centre of the handle spindle to the centre of the Euro profile cylinder.

• Replacement Centre Mechanism – Ideal for replacing a damaged, jammed or worn gearbox.

• Restores Lock Operation – Can help restore smooth handle and locking operation when a faulty gearbox is the cause.

• Cost-Effective Repair – An alternative to replacing the complete multipoint locking strip where the existing mechanism is compatible and serviceable.

• Professional & DIY Replacement – Suitable for professional locksmiths, door repair specialists and experienced DIY customers.

Dimensions & Technical Specifications

Choosing the Correct Backset

The backset is measured from the front edge of the metal lock faceplate to the centre of the handle spindle hole.

• 35mm Backset: For existing MACO CTS mechanisms with a 35mm backset.

• 45mm Backset: For existing MACO CTS mechanisms with a 45mm backset.

Both options have 92mm PZ centres, measured from the centre of the handle spindle hole to the centre of the Euro profile cylinder opening.

Please select the correct backset option before adding the gearbox to your basket.

When Might You Need a Replacement Gearbox?

The centre gearbox can become worn or damaged through regular use or excessive strain on the locking mechanism.

Common symptoms of a faulty multipoint door lock gearbox can include:

• A door handle that becomes stiff or difficult to operate.

• A handle that turns without correctly operating the lock.

• A jammed or damaged centre locking mechanism.

• Difficulty engaging or disengaging the locking points.

• Failure of the existing gearbox mechanism.

These symptoms can also be caused by door misalignment or faults elsewhere in the locking system, so the cause should be checked before ordering a replacement.

Important Compatibility Information

MACO multipoint locking systems are available in several different designs and specifications.

Before ordering, carefully compare your existing gearbox with the product photographs and confirm the following:

• Backset: 35mm or 45mm.

• PZ Centres: 92mm.

• Gearbox Case Height: 200mm.

• Gearbox Case Width: Backset + 15mm.

• Spindle Size: 8mm.

• Latch and deadbolt positions.

• Fixing holes and gearbox configuration.

If replacing an existing MACO CTS gearbox, matching the manufacturer's markings, dimensions and overall design of your original mechanism is the best way to confirm compatibility.

Important: This listing is for the replacement centre gearbox, not the complete multipoint locking strip.

Need Help Identifying Your MACO Door Lock?

Not sure whether you need the MACO CTS 35mm or 45mm replacement gearbox?

Our team at Nigel Waters Hardware can help identify a suitable replacement.

Simply contact us with clear photographs of your existing gearbox, including any manufacturer markings, and the relevant measurements.

We recommend checking the alignment of your door and the operation of the remaining locking components before fitting a replacement gearbox, as excessive strain can cause premature wear.