Replacement uPVC Door Lock Gearboxes

45 products

Find the right replacement gearbox for uPVC and composite doors from our range of reliable multipoint lock gearboxes. We stock replacement centre cases and gearboxes suitable for many popular door lock brands and systems.

Read detailed product guidance
Not sure which gearbox fits? Check your backset and PZ centres, or send us a photo for help identifying the right part.
Get identification help
Not sure which size you need? View sizing diagram before ordering
Door lock backset guide

Check the backset and other lock dimensions against your existing mechanism.

Door lock gearbox backset measurement diagram Example guide only. Confirm compatibility with your existing hardware before ordering. Select the image to enlarge.
Showing 1 - 24 of 45 products
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MACO CTS Door Lock Gearbox – 35mm or 45mm Backset, 92mm PZMACO CTS Door Lock Gearbox – 35mm or 45mm Backset, 92mm PZ
From £30.85 inc VAT From £25.71 ex VAT
Maco
MACO CTS Door Lock Gearbox – 35mm or 45mm Backset, 92mm PZ
Fullex XL Multipoint Replacement Gearbox Door Lock 35mm / 45mm BacksetFullex XL Multipoint Replacement Gearbox Door Lock 35mm / 45mm Backset
£22.80 inc VAT £19.00 ex VAT
Fullex
Fullex XL Multipoint Replacement Gearbox Door Lock 35mm / 45mm Backset
Avantis Door Lock Gearbox – 35mm / 45mm Backset, 92/62mm PZAvantis Door Lock Gearbox – 35mm / 45mm Backset, 92/62mm PZ
£38.00 inc VAT £31.67 ex VAT
Avantis
Avantis Door Lock Gearbox – 35mm / 45mm Backset, 92/62mm PZ
Roto Elite 35mm Door Lock Gearbox – Single or Double SpindleRoto Elite 35mm Door Lock Gearbox – Single or Double Spindle
From £29.80 inc VAT From £24.83 ex VAT
Roto
Roto Elite 35mm Door Lock Gearbox – Single or Double Spindle
Winkhaus Replacement uPVC Door Lock Gearbox 92mm Split SpindleWinkhaus Replacement uPVC Door Lock Gearbox 92mm Split Spindle
£80.58 inc VAT £67.15 ex VAT
Winkhaus
Winkhaus Replacement uPVC Door Lock Gearbox 92mm Split Spindle
ERA Hook Lock Case Multi Point UPVC Door Gearbox 35mm Backset 92mm PZ
£23.18 inc VAT £19.32 ex VAT
ERA
ERA Hook Lock Case Multi Point UPVC Door Gearbox 35mm Backset 92mm PZ
Genuine Replacement Fullex Case A Gearbox Lock 39mm Backset, 68mm PZ
£42.60 inc VAT £35.50 ex VAT
Fullex
Genuine Replacement Fullex Case A Gearbox Lock 39mm Backset, 68mm PZ
Genuine Lockmaster Mila Master Replacement uPVC Door Lock Gearbox 35mmGenuine Lockmaster Mila Master Replacement uPVC Door Lock Gearbox 35mm
£25.90 inc VAT £21.58 ex VAT
LOCKMASTER
Genuine Lockmaster Mila Master Replacement uPVC Door Lock Gearbox 35mm
Fuhr Lock Case Multi Point Door Gearbox Various Sizes availableFuhr Lock Case Multi Point Door Gearbox Various Sizes available
From £26.00 inc VAT From £21.67 ex VAT
Fuhr
Fuhr Lock Case Multi Point Door Gearbox Various Sizes available
GU Old Style Replacement uPVC Door Lock Gearbox Centre Case 92mm PZ
From £18.00 inc VAT From £15.00 ex VAT
GU
GU Old Style Replacement uPVC Door Lock Gearbox Centre Case 92mm PZ
Mila Coldseal Replacement uPVC Door Lock Gearbox 35mmMila Coldseal Replacement uPVC Door Lock Gearbox 35mm
From £25.50 inc VAT From £21.25 ex VAT
Mila
Mila Coldseal Replacement uPVC Door Lock Gearbox 35mm
ERA Vectis Dead Bolt Lock Case UPVC & Composite Multi Point Door GearboxERA Vectis Dead Bolt Lock Case UPVC & Composite Multi Point Door Gearbox
£32.00 inc VAT £26.67 ex VAT
ERA
ERA Vectis Dead Bolt Lock Case UPVC & Composite Multi Point Door Gearbox
Cego Surelock Replacement Multi Point Door Lock Gearbox Centre Case 35mm 92/70
£35.40 inc VAT £29.50 ex VAT
Cego
Cego Surelock Replacement Multi Point Door Lock Gearbox Centre Case 35mm 92/70
Genuine Fullex SL16 Replacement Gearbox | Multipoint Door Lock Centre CaseGenuine Fullex SL16 Replacement Gearbox | Multipoint Door Lock Centre Case
From £42.00 inc VAT From £35.00 ex VAT
Fullex
Genuine Fullex SL16 Replacement Gearbox | Multipoint Door Lock Centre Case
Fullex Crimebeater Replacement Multipoint Door Lock Gearbox 35mm, 45mm & 55mmFullex Crimebeater Replacement Multipoint Door Lock Gearbox 35mm, 45mm & 55mm
From £27.30 inc VAT From £22.75 ex VAT
Fullex
Fullex Crimebeater Replacement Multipoint Door Lock Gearbox 35mm, 45mm & 55mm
ERA Saracen Thin Bolt Replacement uPVC Door Lock Gearbox 35mm
£28.00 inc VAT £23.33 ex VAT
Nigel Waters Hardware
ERA Saracen Thin Bolt Replacement uPVC Door Lock Gearbox 35mm
Union L2224 Replacement Aluminium Door Lock Gearbox 31mm 48mm PZ
£84.00 inc VAT £70.00 ex VAT
Union
Union L2224 Replacement Aluminium Door Lock Gearbox 31mm 48mm PZ
Ingenious uPVC & Composite Door Lock Centre Gearbox Case 35mm & 45mm Backset | Replacement Multipoint Lock
£22.80 inc VAT £19.00 ex VAT
Ingenious
Ingenious uPVC & Composite Door Lock Centre Gearbox Case 35mm & 45mm Backset | Replacement Multipoint Lock
Lockmaster Door Lock Gearbox Hook Style Upvc 35mm Back Set
£25.90 inc VAT £21.58 ex VAT
LOCKMASTER
Lockmaster Hook Replacement uPVC Door Lock Gearbox Centre Case 35mm
ABT Gibbons Replacement Aluminium Door Lock Gearbox 31mm 92/48 PZ No Snib
£80.00 inc VAT £66.67 ex VAT
ABT
ABT Gibbons Replacement Aluminium Door Lock Gearbox 31mm 92/48 PZ No Snib
Maco Door Lock Old Style
£18.95 inc VAT £15.79 ex VAT
Maco
MACO Old Style Replacement uPVC Door Lock Gearbox Centre Case 35mm 92mm
Roto Upvc Door Lock Gearbox Multi Point Door Lock 45mm Twin Spindle
£39.00 inc VAT £32.50 ex VAT
Roto
Roto Upvc Door Lock Gearbox Multi Point Door Lock 45mm Twin Spindle
Fuhr Replacement Sliding Patio Door Lock Gearbox Centre Case 22mm 92mm PZ
£29.80 inc VAT £24.83 ex VAT
Fuhr
Fuhr Replacement Sliding Patio Door Lock Gearbox Centre Case 22mm 92mm PZ
Union Monarch Replacement Door Lock Gearbox Case for uPVC & Aluminium Doors
£138.80 inc VAT £115.67 ex VAT
Union
Union Monarch Replacement Door Lock Gearbox Case for uPVC & Aluminium Doors

About Replacement uPVC Door Lock Gearboxes

Find the right replacement gearbox for uPVC and composite doors from our range of reliable multipoint lock gearboxes.

We stock replacement centre cases and gearboxes suitable for many popular door lock brands and systems. Whether your door handle is stiff, the key will not turn correctly, or the multipoint locking mechanism has failed, replacing the gearbox can often restore the lock without needing to replace the complete locking strip.

Our range includes gearboxes with different backsets, centres, spindle configurations and locking mechanisms, helping you find a compatible replacement for your existing door lock.

For the best match, check the manufacturer, backset, PZ centres and gearbox dimensions on your existing lock before ordering.

Shop replacement gearboxes for uPVC front doors, back doors, patio doors, French doors and composite doors, with options available for a wide variety of multipoint locking systems.

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