Detex Bent Arm Assembly for AO...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$138.10
Detex Bent Arm Assembly for AO19 Series Vertical Rod Exit Devices

Detex Bent Arm Assembly for AO19 Series Vertical Rod Exit Devices

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Model: 12731-1
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$138.10
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Detex Bent Arm Assembly for AO19 Series Vertical Rod Exit Devices

Professional Replacement Component for AO19 Series Exit Devices

The Detex Bent Arm Assembly (Model 12731) is a precision-engineered replacement component designed specifically for AO19 Series vertical rod exit devices. This commercial-grade installation accessory ensures proper mechanical operation and maintains the integrity of your exit device system. Manufactured to exact specifications for seamless integration with existing AO19 Series hardware.

Professional Features & Benefits

  • Series-Specific Compatibility: Engineered exclusively for AO19 Series vertical rod exit devices ensuring perfect fit and function.
  • Commercial-Grade Construction: Built to withstand demanding commercial applications with durable materials and precision manufacturing.
  • Exact OEM Replacement: Model 12731 provides identical specifications to original equipment for reliable performance.
  • Professional Installation Component: Designed as an installation accessory to support proper exit device configuration and operation.
  • Vertical Rod System Integration: Specifically designed for vertical rod exit device applications requiring bent arm assemblies.
  • Quality Assurance: Manufactured to Detex quality standards for consistent performance and long-term reliability.

Technical Specifications

  • Commercial/Residential: Commercial
  • Parts and Accessories Type: Installation Accessories
  • Product Attribute: Parts and Accessories
  • Product Category: Parts and Accessories
  • Product Group: Exit Devices and Trim
  • Product Model: 12731
  • Product Subgroup: Exit Devices - Vertical Rod
  • Product Type: Exit Devices - Vertical Rod
  • Series: AO19
  • Subcategory: Parts and Accessories

Installation & Operation

This component is designed for use with compatible AO19 Series vertical rod exit devices. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Retail Establishments
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Government and Municipal Buildings

Why Choose Detex Quality?

Detex replacement components deliver professional-grade reliability with precision manufacturing designed to match original equipment specifications. Engineered for demanding commercial applications where dependable exit device performance is essential for life safety compliance.

Manufacturer Resources

Product Specs

Subcategory:
Parts and Accessories
Series:
AO19
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Devices - Vertical Rod
Product Type:
Exit Devices - Vertical Rod
Commercial/Residential:
Commercial
Parts and Accessories Type:
Installation Accessories
Product Attribute:
Parts and Accessories
Product Model:
12731
Product Category:
Parts and Accessories
Department:
Door Hardware

Detex 12731-1 – Frequently Asked Questions

1) Will the Detex 12731 bent arm assembly fit any Detex exit device, or only the AO19 series?
Only AO19. The 12731 bent arm assembly is built for Detex AO19 Series vertical rod exit devices and nothing else, so check the series stamped on the device chassis before ordering. If the door carries a different Detex series or another brand's vertical rod device, the arm geometry will not match and you need that device's own replacement arm.
2) Is the Detex 12731 a complete exit device or just a replacement part?
It is a single service part, the bent arm assembly, not a panic device. Ordering the 12731 gets you the arm alone for an AO19 vertical rod device already hanging on the door. If the opening needs a whole new device, look at a complete surface vertical rod unit such as the Von Duprin 8827-3FT or the Marks USA M9900VR instead.
3) Is the Detex 12731 bent arm assembly a replacement for a whole vertical rod exit device?
No. The Detex 12731 is a bent arm assembly, a commercial installation accessory built for AO19 Series vertical rod exit devices, so it replaces one mechanical component inside a device that is already hung on the door. A complete surface vertical rod device is a different purchase entirely: the Von Duprin 8827-3FT is a Grade 1 wide stile surface vertical rod exit device in the 88 Series, and the Imperial USA ED-VR531 is a Grade 1 wide stile surface vertical rod device from the ED-500 Series. Order the 12731 when the AO19 device stays and one arm is worn or bent; order a device like the 8827-3FT or ED-VR531 when the opening needs new panic hardware.
4) Will a bent arm assembly from a Von Duprin or Marks USA device work on a Detex AO19?
No. The Detex 12731 bent arm assembly is engineered specifically for AO19 Series vertical rod exit devices, and internal linkage parts are not interchangeable across manufacturers. The Von Duprin 8827-3FT belongs to the 88 Series, the Marks USA M9900VR is its own exit only panic device, and the Imperial USA ED-VR531 is part of the ED-500 Series - each is a distinct device platform. If the AO19 device is staying on the door, order the Detex 12731 in the aluminum or bronze finish that matches the device.
5) What finishes does the Detex 12731 bent arm assembly come in?
Two: aluminum and bronze. Pick the one that matches the existing AO19 device on the door, since the arm is a visible part of the assembly and a mismatched finish stands out on an otherwise uniform run of openings.
6) My AO19 exit device is fire rated. Can I use a generic aftermarket arm instead of the Detex 12731?
Use the Detex part. The 12731 is the OEM bent arm assembly for the AO19 series, and on a fire door any substituted component puts the labeled assembly in question. If you are replacing the whole device rather than servicing it, the fire rated vertical rod options include the Marks USA M9900FVR and the Delaney F9100 Series.
7) Do I need anything else besides the bent arm to repair an AO19 vertical rod device?
The 12731 covers the bent arm assembly only. Rods, latches, strikes, and trim are separate parts, so pull the AO19 installation instructions and confirm which component actually failed before you order. A bent arm that binds is often paired with a rod out of adjustment, and swapping the arm alone will not fix that.
8) Which non fire rated vertical rod exit devices are available if the AO19 opening is being rebuilt rather than repaired?
For a non fire rated opening there are several complete surface vertical rod devices. The Von Duprin 8827-3FT is Grade 1, wide stile, 88 Series, and lists a 1-3/4 inch door thickness. The Delaney 9100 Series DLY-692301 is a Grade 1 heavy duty vertical rod device for a 36 by 84 inch door in stainless steel, and the Delaney 8100 Series DLY-8100-3684 is a Grade 1 vertical rod device for the same 36 by 84 inch opening. The Marks USA M9900VR is an exit only non-handed vertical rod panic device for 36 by 84 inch doors, with a 48 by 84 inch version as M9900VR-48X84. All are separate devices from the Detex 12731 bent arm assembly, which is a component for AO19 Series hardware.
9) Is the Detex bent arm assembly rated for commercial traffic or is it a light-duty part?
Commercial. The 12731 arm is a commercial-duty service part for AO19 vertical rod devices and gets used in offices, schools, healthcare, retail, warehouses, multi-tenant residential, and government buildings.
How fast can I get the Detex 12731-1 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 Detex 12731-1 come with a warranty?
Absolutely. The Detex 12731-1 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 Detex 12731-1?
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 Detex 12731-1 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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