Dormakaba MOD AR Modular Close...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$134.00
$91.36
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Dormakaba MOD AR Modular Closer Arm for 8600/7400 Series, Round, Non-Hold Open, Regular/Top Jamb, 0" - 4" Reveal

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Model: MOD AR 689

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

$134.00
$91.36
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Dormakaba MOD AR Modular Closer Arm for 8600/7400 Series Door Closers

The Dormakaba MOD AR is a modular replacement closer arm engineered specifically for compatibility with Dormakaba 8600 and 7400 Series door closers. Featuring a round arm profile and non-hold open configuration, this arm supports both regular and top jamb mounting applications and accommodates a reveal range of 0" to 4", providing flexible installation across a wide variety of commercial door frames. Designed for commercial environments, the MOD AR is a genuine Dormakaba replacement part intended to restore or expand the functionality of compatible closer systems.

Key Features

  • Reveal Range Compatibility: Accommodates 0" to 4" reveal, enabling proper fitment across a range of door frame configurations without additional adapters.
  • Series Compatibility: Designed for use with Dormakaba 8600 and 7400 Series door closers, ensuring precise mechanical interface and reliable operation.
  • Round Arm Profile: Round arm design provides a clean, professional appearance suited to commercial interior and exterior door applications.
  • Non-Hold Open Configuration: Engineered for standard controlled closing, door returns to the closed position after each use without a hold-open feature.
  • Dual Mounting Application: Supports both regular (parallel arm) and top jamb mounting orientations for versatile installation across different door and frame configurations.
  • Genuine Dormakaba Replacement Part: Manufactured as an original Dormakaba component, ensuring proper fit and performance with compatible 8600/7400 Series closer bodies.
  • Commercial Grade: Intended for commercial applications where consistent, dependable door control is required across high-use environments.

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: Door Closer Arms
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: MOD AR
  • Features: Dorma Door Closer Parts & Accessories

Typical Applications

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

Why Dormakaba MOD AR?

Dormakaba MOD AR closer arms are genuine replacement components built to the same standards as the original hardware installed in commercial facilities worldwide. Engineered specifically for the 8600 and 7400 Series closer bodies, the MOD AR delivers dependable, repeatable performance with mounting flexibility to match real-world installation conditions, making it the reliable choice for facility managers and door hardware professionals who need a drop-in solution they can trust.

Manufacturer Resources

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:
Door Closer Arms
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
MOD AR
Features:
Dorma Door Closer Parts & Accessories

Dormakaba MOD AR 689 – Frequently Asked Questions

1) Will the Dormakaba MOD AR arm fit my 8600 or 7400 Series door closer?
Yes. The MOD AR is a genuine Dormakaba modular closer arm built for the 8600 and 7400 Series closer bodies, so it mates directly to the closer spindle without an adapter. It is a replacement part only, so you are ordering the arm assembly, not a closer body.
2) What reveal can a MOD AR closer arm handle on a top jamb installation?
The MOD AR covers a 0 inch to 4 inch reveal, which is the gap from the face of the door to the frame stop face where the shoe lands. Anything inside that range is handled by the arm itself, no drop plate or reveal bracket needed.
3) Can this Dormakaba arm be mounted both regular arm and top jamb?
Both. The MOD AR is set up for regular and top jamb mounting, so the same arm works whether the closer body sits on the pull side of the door or on the frame face above it. Confirm which side of the door your closer body is mounted on before you set the arm, because the shoe orientation differs between the two.
4) Does the MOD AR arm have a hold open feature?
No. It is a non-hold open arm, so the door closes fully after every swing. If the opening needs to stand open, this is the wrong arm, order the hold open version of the modular arm instead.
5) What finishes does the Dormakaba MOD AR closer arm come in?
Two: 689 aluminum and 695 dark bronze. 689 matches the painted aluminum finish on most standard commercial closers, and 695 is the dark bronze used on storefront and exterior openings. Match the arm finish to the closer body already on the door so the repair is not obvious.
6) I manage a building with Dorma closers on every corridor door. Can I standardize on this arm for repairs?
If those closers are 8600 or 7400 Series, yes. The MOD AR is the commercial grade non-hold open arm for that family, stocked in aluminum and dark bronze, so a single part number covers regular arm and top jamb openings and reveals up to 4 inches. Doors that need a hold open or that run other closer series will need a different arm.
7) Does ordering the MOD AR arm get me everything I need, or do I need the closer body too?
The MOD AR is the arm only. It is sold as a replacement component to restore or reconfigure an existing 8600 or 7400 Series closer, so you keep the body and shoe mounting screws already in the frame. If the closer body itself is leaking or blown, the arm will not fix it.
8) Is a round closer arm different from a standard arm, and why would I pick it?
The MOD AR uses a round arm profile rather than a flat or forged square section. Mechanically it does the same job on a regular or top jamb mount; the difference is appearance, and the round profile is the one specified where the hardware is visible in finished commercial interiors and entrances.
How fast can I get the Dormakaba MOD AR 689 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 Dormakaba MOD AR 689 come with a warranty?
Absolutely. The Dormakaba MOD AR 689 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 Dormakaba MOD AR 689?
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 Dormakaba MOD AR 689 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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