Yale Lockmaster Key Wind Gearbox for Multipoint Door Lock 45mm Backset 92 PZ

Yale Lockmaster 45mm Key Wind Gearbox - 92 PZ Centre Case for Composite Doors

Replace your failed composite door gearbox with this exact-match Yale Lockmaster 45mm key wind mechanism – restoring reliable security and effortless key-only operation.

Yale Lockmaster 45mm Key Wind Gearbox is the genuine replacement solution for failed or worn multipoint locking mechanisms in modern composite doors. If your existing Yale Lockmaster key wind gearbox has stopped operating smoothly or has failed completely, this exact-match replacement restores your door to full functionality. This advanced gearbox features innovative key wind technology that eliminates the need to lift your door handle – simply rotate your key 360 degrees to engage all locking points, providing effortless security with every turn.

Manufactured in the UK by Yale, this genuine replacement gearbox offers exceptional build quality backed by a comprehensive 10-year manufacturer's mechanical guarantee. Rather than facing the expense and disruption of replacing your entire composite door when the locking mechanism fails, this exact-match gearbox restores full functionality at a fraction of the cost. The corrosion-resistant construction has been rigorously tested to BS EN 1670:2007 Grade 4 standards (240 hours NSST) and proven through 50,000 operational cycles, ensuring reliable performance for years to come.

Key Benefits:

• Direct Replacement for Failed Gearboxes – This is the genuine Yale replacement part for worn or failed Lockmaster 45mm key wind mechanisms. If your existing gearbox matches these specifications (45mm backset, 92mm PZ centres, key wind operation), this is your exact-match solution. Avoid costly door replacement by simply swapping the failed gearbox mechanism.
• Effortless Key Wind Operation – Lock and unlock your door with a simple 360-degree key rotation, eliminating the need to lift handles. Perfect for users with mobility concerns or those seeking streamlined door operation.
• Enhanced Security Key-Holder-Only Entry – When fitted with a fixed pull handle or cylinder pull escutcheon plate externally, your door becomes accessible only to key holders. Simply push the door closed and it latches automatically – no keys needed from inside, but essential security from outside.
• PAS 24 & Secured by Design Certification – Police-accredited and tested to the highest security standards, providing insurance-approved protection and peace of mind. Meets all current building regulations for composite door installations.
• Non-Handed Universal Design – Suitable for left or right-hung doors without modification. The latch reversal is straightforward – simply remove the end screw, rotate the latch 180 degrees, and re-fasten. No special tools or technical expertise required.
• Compatible with Existing Yale Lockmaster Systems – Works seamlessly with current Yale Lockmaster keeps and standard euro profile cylinders, making replacement installations quick and hassle-free. Designed to suit a wide variety of door furniture styles.
• UK Manufactured Quality – Designed and manufactured in Britain to exacting standards, ensuring superior engineering and long-term reliability. Backed by Yale's reputation for security excellence spanning over 180 years.
• Exceptional Durability – Endurance tested to 50,000 cycles and corrosion tested to Grade 4 standards (240 hours NSST). The robust construction ensures consistent performance in all weather conditions, protecting your home year-round.
• Comprehensive Manufacturer's Guarantee Coverage – Enjoy a 10-year manufacturer's mechanical guarantee covering all moving parts and a 12-month surface finish guarantee from Yale. The manufacturer stands behind their products with industry-leading warranty protection.
• 45mm Backset – The compact 45mm backset design is specifically engineered for modern composite door profiles, ensuring proper fit and optimal security performance without compromising door aesthetics.
• Convenient Internal Access – From inside your home, simply pull the lever down to release the latch and exit freely. No key required for internal operation, providing safety and convenience for your household.

Product Specifications:

• Brand: Yale
• Model: Lockmaster 45mm Key Wind (685-F20-0AA)
• Type: Lever/Lever or Lever/Pad Compatible
• Operation: Key Wind (360° Key Rotation)
• Backset: 45mm
• Centres (PZ): 92mm
• Case Height: 202mm
• Case Width: 15mm
• Case Depth: 60mm
• Deadbolt Length: 27mm
• Deadbolt Width: 5mm
• Latch to Deadbolt Centres: 90mm
• Cylinder Type: Euro Profile (Standard)
• Spindle: Single 8mm
• Handing: Non-Handed (Universal)
• Main Gearbox Function: Latch & Deadbolt
• Fixings Required: 3 × Torx T20 Screws (Not Included - Use Existing)
• Certification: PAS 24, Secured by Design (Police Accredited)
• Testing Standards: BS EN 1670:2007 Grade 4 Corrosion Resistance
• Endurance Rating: 50,000 Cycles Tested
• Guarantee: 10-Year Manufacturer's Mechanical, 12-Month Surface Finish
• Origin: Designed & Manufactured in the UK
• Authenticity: Genuine Yale Product

Pro Tips:

Pro Tip: Before installation, verify this gearbox matches your failed unit's measurements exactly: 45mm backset, 92mm PZ centres, and key wind operation. When installing, use your existing screws from the old mechanism – they will self-tap perfectly into the new unit as the screw holes are intentionally left unthreaded by Yale for optimal grip and secure fitting. This design feature ensures maximum holding strength and prevents thread stripping during installation. Always test the key wind operation several times before final securing to confirm smooth 360-degree rotation. Taking accurate measurements before ordering prevents costly returns and ensures you get the exact replacement your door needs.

Frequently Asked Questions:

Q: How do I know if this gearbox will replace my existing failed mechanism?
A: This Yale Lockmaster 45mm key wind gearbox is designed as a direct replacement for existing failed or worn gearboxes with matching specifications. Before ordering, measure your current gearbox to confirm: 45mm backset (distance from edge of door to centre of cylinder), 92mm PZ centres (distance between handle spindle and cylinder), and verify it operates by key wind (360-degree key rotation rather than handle lifting). Compare your measurements against the diagram and all dimensions listed in the Product Specifications section above – every measurement must match exactly. If these measurements match and your door currently has a Yale Lockmaster key wind system, this is your exact replacement. The model number 685-F20-0AA ensures you're getting the genuine article that will fit perfectly and restore your door's functionality. Taking accurate measurements is crucial – an incorrect gearbox cannot be forced to fit and may compromise your door's security.

Q: What does "key wind operation" mean, and how is it different from standard multipoint locks?
A: Key wind operation means you lock and unlock your door by rotating the key 360 degrees (a full turn), which automatically engages or releases all locking points including hooks and deadbolts. Unlike traditional multipoint locks that require you to lift the door handle before turning the key, the Yale Lockmaster key wind system eliminates this step entirely. This makes locking and unlocking smoother, easier, and more convenient – particularly beneficial for those with mobility issues or when carrying shopping bags.

Q: Can I use this gearbox on both left-hung and right-hung doors?
A: Yes, absolutely! This Yale Lockmaster gearbox features a non-handed design, making it suitable for both left and right-hung doors without any modifications. The latch can be easily reversed if needed by simply removing the screw at the end of the latch, rotating it 180 degrees, and re-fastening. This universal compatibility makes it an ideal replacement part regardless of your door configuration.

Q: Is this a genuine Yale product, and what guarantees are included?
A: Yes, this is a 100% genuine Yale Lockmaster product, designed and manufactured in the UK to Yale's exacting quality standards. It comes with an impressive 10-year manufacturer's mechanical guarantee covering all moving components and a 12-month surface finish guarantee. The gearbox has been rigorously tested to 50,000 operational cycles and meets BS EN 1670:2007 Grade 4 corrosion resistance standards. Additionally, it carries PAS 24 certification and is Police-accredited Secured by Design, ensuring it meets insurance requirements and the highest security standards.

Q: Why aren't fixing screws included, and what screws should I use?
A: Yale deliberately designs the screw holes in this gearbox to be unthreaded, allowing your existing screws to self-tap during installation. This engineering approach provides superior holding strength compared to pre-threaded holes and prevents thread stripping. Simply retain the three Torx T20 screws from your existing gearbox and reuse them when fitting the new mechanism. The self-tapping action creates a custom thread pattern that ensures maximum security and longevity. If your existing screws are damaged or missing, standard Torx T20 screws suitable for door hardware are widely available from hardware suppliers.

Why Choose Yale Lockmaster 45mm Key Wind Gearbox?

When your composite door's multipoint lock fails, replacing the entire door can cost thousands of pounds. The Yale Lockmaster 45mm Key Wind Gearbox offers a cost-effective, professional-grade solution – replacing only the failed mechanism while retaining your existing door, frame, and hardware. This genuine Yale replacement part is the exact match for your failed gearbox, ensuring perfect fit and restoring your door to factory-specification performance.

With police accreditation through Secured by Design and PAS 24 certification, this replacement gearbox maintains the highest security standards required by insurance companies and building regulations. The effortless key wind operation transforms your daily door security routine from a frustrating struggle with a failing mechanism into a smooth, single-turn action. Backed by Yale's 10-year manufacturer's mechanical guarantee and manufactured to withstand 50,000 operational cycles, this replacement investment delivers reliable performance day after day, year after year – at a fraction of the cost of door replacement. Trust Yale – the name synonymous with lock security since 1840.