Mila Coldseal Gearbox for Multipoint Door Lock Single Spindle 35mm Backset 92PZ

Mila Coldseal Gearbox for Multipoint Door Lock Single Spindle 35mm Backset 92PZ

Repair your uPVC door's multipoint lock for a fraction of the cost — this Mila gearbox fits Coldseal & Swift Frame locks and restores full security fast.

Mila Coldseal Swift Frame Multipoint Lock Gearbox is the cost-effective way to restore a faulty multipoint lock without replacing the entire mechanism. When a multipoint lock stops engaging correctly, the gearbox is often the only component at fault. Swapping it out rather than fitting a new lock saves both money and time — and with this 35mm backset, 92PZ replacement unit, you can get your uPVC door locking smoothly and securely again without calling a locksmith.

This gearbox is manufactured to fit Mila, Coldseal, and Swift Frame multipoint door locks, making it one of the most widely compatible gearbox replacements available for these systems. Built to the same tolerances as the original component, it slots directly into the lock case and restores proper function from the very first use.

Key Benefits for uPVC Door Lock Repairs:

• Targeted Repair Saves Significant Cost – A full multipoint lock replacement can be expensive and time-consuming. By replacing only the faulty gearbox, you restore complete locking function for a fraction of the price — keeping more money in your pocket without compromising your door's security.
• Designed for Mila, Coldseal & Swift Frame Locks – This gearbox is built to match the exact specifications of Mila, Coldseal, and Swift Frame multipoint lock systems. When your measurements confirm compatibility, it fits cleanly into the existing lock case with no modification required.
• Non-Handed — Fits Left or Right-Handed Doors – The reversible latch means this gearbox can be configured for both left and right-handed door installations. There's no need to order a handed version; a simple adjustment before fitting sets it up correctly for your door.
• Lever/Lever Handle Operation – Designed for use with lever/lever handle configurations, this gearbox works with the standard handle setup found on the vast majority of uPVC entrance doors, so there's no need to change your existing handles.
• Precise Dimensions for Accurate Replacement – With a 233mm case length, 92PZ spindle centre, and 197mm faceplate screw centres, this gearbox matches the critical measurements of the original component. Checking these figures against your existing lock before ordering ensures a clean, accurate swap.
• Straightforward DIY-Friendly Fitting – No specialist tools or trade knowledge are required. With a screwdriver and tape measure, most homeowners can complete the replacement themselves in under an hour — restoring the door to full working order without waiting for a tradesperson.

Product Specifications:

• Brand: Mila
• Compatible Lock Systems: Mila, Coldseal, Swift Frame multipoint door locks
• Backset: 35mm
• PZ (Spindle Centre): 92mm — 8mm single spindle
• Lock Case Length: 233mm
• Lock Case Depth: 50mm
• Lock Case Width: 13mm
• Deadbolt Length: 30mm
• Deadbolt Thickness: 5mm
• Centre of Latch to Centre of Deadbolt: 103mm
• Faceplate Screw Hole Centres: 197mm
• Handing: Non-handed (reversible latch)
• Handle Operation: Lever/lever

All measurements are approximate. Please measure your existing gearbox carefully before ordering and refer to the diagram in the product image gallery. If you are unsure whether this gearbox is compatible with your lock, please contact us before purchasing.

Pro Tips:

Pro Tip: Before ordering, take three measurements from your existing gearbox: the backset (35mm), the PZ spindle centre (92mm), and the distance between the faceplate screw holes (197mm). All three should match. If the faceplate screw centres differ from 197mm, this gearbox will not align correctly in your door — so it's worth double-checking before you buy.

Package Contents:

• 1 × Mila Coldseal Swift Frame Multipoint Lock Replacement Gearbox (35mm Backset, 92PZ)

Frequently Asked Questions:

How do I know if this gearbox will fit my multipoint lock?
The three key figures to check are the backset (35mm), the PZ spindle centre (92mm), and the faceplate screw hole centres (197mm). These must match your existing gearbox exactly. You should also confirm that your current lock is a Mila, Coldseal, or Swift Frame system. If you're unsure of the brand, check the faceplate of your existing lock — the manufacturer name is usually printed or embossed on it.

Can this gearbox be fitted to both left and right-handed doors?
Yes. This gearbox is non-handed, meaning the latch is fully reversible. To set the correct handing, locate the cross-head screw on the side of the gearbox inline with the latch, remove it, pull out the latch, rotate it 180°, and reinsert it before replacing the screw. This takes only a minute and ensures the latch operates correctly regardless of which way your door opens.

What tools do I need to replace my multipoint lock gearbox?
In most cases, a cross-head (Phillips) screwdriver and a tape measure are all that's required. You'll use the tape measure to confirm your door's measurements before fitting, and the screwdriver to remove the old gearbox and secure the new one in place. No drilling or specialist equipment is needed for a like-for-like replacement.

Will this work with my current door handles?
This gearbox is designed for lever/lever handle operation, which is the standard configuration on the vast majority of uPVC entrance doors. Provided your existing handles operate on a lever/lever basis and your door uses a 92PZ spindle spacing, your current handles will operate this gearbox without any modification.

Why Choose the Mila Coldseal Swift Frame Replacement Gearbox?

When a multipoint lock develops a fault — whether that's a latch that won't retract, a deadbolt that won't engage, or a handle that spins without catching — the gearbox is the most common culprit. Replacing the whole lock mechanism is rarely necessary and significantly more expensive. This Mila replacement gearbox gives you a precise, manufacturer-matched component that slots directly into your existing lock case, restoring full security and smooth operation without the cost or disruption of a complete lock swap.

At JCP Hardware, we stock replacement gearboxes, lock cases, and multipoint lock components to help homeowners and trade professionals find the exact part they need. If you're unsure whether this gearbox is the right match for your door, get in touch — our team is happy to help you confirm compatibility before you order.