Kawneer KW451440 Center Hung S...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$36.39
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Kawneer KW451440 Center Hung Shear Block Package for Trifab 451 Replacement Part

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Model: KW451440

In Stock (leaves warehouse same day if ordered before 3pm ET)

$36.39
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Kawneer KW451440 Center Hung Shear Block Package for Trifab 451 Replacement Part

The Kawneer KW451440 Center Hung Shear Block Package is a genuine Kawneer service part engineered specifically for use with the Trifab 451 commercial door and framing system. Designed for center hung door applications, this shear block package provides the structural connection and load-transfer support essential to proper door operation and long-term system integrity. Intended for commercial installations, this replacement part ensures continued performance of Trifab 451 assemblies in demanding professional environments.

Key Features

  • Genuine Kawneer Service Part: Manufactured as an authentic Kawneer replacement component, ensuring direct compatibility and consistent performance within Trifab 451 system assemblies.
  • Trifab 451 System Compatibility: Engineered specifically for the Kawneer Trifab 451 door and framing platform, providing a precise fit and reliable integration with existing hardware.
  • Center Hung Door Application: Designed to support center hung door configurations, delivering the shear load transfer required for stable and consistent door operation.
  • Commercial-Grade Construction: Built to meet the demands of commercial applications where structural integrity and long-term durability are essential requirements.
  • Complete Package: Supplied as a shear block package, providing the necessary components for a proper installation or replacement in compatible Trifab 451 assemblies.
  • Exit Device Parts Category: Classified as an exit device part and replacement component, making it suitable for maintenance, repair, and restoration of existing commercial door systems.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Exit Device Parts
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: KW451440
  • Features: Kawneer Service Parts

Typical Applications

  • Commercial Office Buildings with Trifab 451 Door Systems
  • Educational Facilities Requiring Exit Device Maintenance
  • Healthcare Institutions with Commercial Aluminum Door Frames
  • Retail Establishments Servicing Existing Kawneer Installations
  • Government and Municipal Buildings with Kawneer Framing Systems
  • Industrial and Warehouse Facilities Utilizing Center Hung Door Configurations
  • Multi-Tenant Commercial Properties Requiring Replacement Parts Service

Why Kawneer KW451440?

Kawneer service parts like the KW451440 are manufactured to the same exacting standards as original Kawneer system components, ensuring reliable compatibility with Trifab 451 assemblies. Choosing genuine Kawneer replacement parts helps preserve the structural and operational integrity of commercial door systems in high-use environments. For facilities teams and installers maintaining Kawneer-equipped buildings, the KW451440 delivers the confidence of an OEM-matched shear block solution.

Manufacturer Resources

Kawneer Service Parts Catalog

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Exit Device Parts
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
KW451440
Features:
Kawneer Service Parts

Kawneer KW451440 – Frequently Asked Questions

1) What does the Kawneer KW451440 shear block package do in a Trifab 451 system?
The KW451440 is the shear block package that makes the structural connection between framing members in a Kawneer Trifab 451 door and framing assembly, transferring shear load so the opening stays square and the door keeps operating properly. It is supplied as a package, so you get the components needed for the connection rather than a single loose block.
2) Will the KW451440 work on a Kawneer framing system other than Trifab 451?
No. The KW451440 shear block package is engineered specifically for the Kawneer Trifab 451 platform. If your storefront or framing is a different Kawneer series, this is not the service part for it and the fit will not be correct.
3) Is the KW451440 shear block package meant for center hung doors specifically?
Yes, it is built for center hung door configurations, where the pivot sits in from the jamb and the frame has to carry shear loading at that connection. If your Trifab 451 opening uses offset pivots or butt hinges, this particular package is not the one to order.
4) Is this an aftermarket part or a genuine Kawneer service part?
Genuine Kawneer. The KW451440 is an authentic Kawneer service part, which is what keeps the fit consistent with the rest of a Trifab 451 assembly instead of forcing field modification.
5) I manage a building with Kawneer entrances and a door is sagging or binding. Is a shear block package what I need?
It can be. On a center hung Trifab 451 opening, the shear block is the structural connection that transfers load through the frame, so a failed or loose block shows up as an opening that no longer holds alignment. The KW451440 is the OEM package used for that repair on Trifab 451 assemblies. Confirm your framing is Trifab 451 and the door is center hung before you order, since the package is specific to both.
6) Is this Kawneer part rated for commercial use or is it a residential-grade component?
Strictly commercial. The KW451440 is classified as a commercial component and is intended for the kind of high-traffic aluminum entrance work found in offices, schools, healthcare buildings, and municipal facilities running Kawneer framing.
How fast can I get the Kawneer KW451440 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Kawneer KW451440 come with a warranty?
Absolutely. The Kawneer KW451440 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Kawneer KW451440?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Kawneer KW451440 from ZenSupply?
ZenSupply makes it easy to get the commercial door hardware you need—fast shipping, expert support, and rewards on every order. Our team is always ready to help you choose the right product for your project.
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