Dormakaba MOD-SISJ Modular Doo...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$548.00
$317.57
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Dormakaba MOD-SISJ Modular Door Closer Arm, Extra Heavy-Duty Spring Cushion, Top Jamb Mount for 3-1/2" to 6-1/2" Reveal

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Model: MOD SISJ 689

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

$548.00
$317.57
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Dormakaba MOD-SISJ Modular Door Closer Arm, Extra Heavy-Duty Spring Cushion, Top Jamb Mount

The Dormakaba MOD-SISJ is a commercial-grade modular door closer arm engineered for extra heavy-duty spring cushion performance, designed for top jamb mounting configurations with a reveal range of 3-1/2" to 6-1/2". As part of Dormakaba's modular closer arm system, this replacement component integrates seamlessly with compatible door closer bodies to maintain smooth, controlled door operation. Its robust construction makes it well-suited for demanding commercial applications where reliable door control is essential.

Key Features

  • Extra Heavy-Duty Spring Cushion: Engineered for high-cycle commercial applications, providing smooth, controlled closing action under demanding conditions.
  • Top Jamb Mount Configuration: Designed specifically for top jamb and mount installations, enabling flexible placement in a variety of commercial door openings.
  • Reveal Range Compatibility: Accommodates reveals from 3-1/2" to 6-1/2", providing versatile fit across a wide range of door frame and wall configurations.
  • Modular System Design: Functions as part of Dormakaba's modular closer arm platform, allowing for targeted replacement of arm components without full closer replacement.
  • Commercial-Grade Construction: Built to the performance standards required for commercial door hardware applications, ensuring lasting durability in high-traffic environments.
  • Dorma Door Closer Compatibility: Specifically designed as part of the Dorma/Dormakaba door closer parts and accessories family for assured system compatibility.

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 SISJ
  • 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-SISJ?

Dormakaba door closer arm components are engineered to deliver professional-grade reliability in commercial environments where consistent door control is non-negotiable. The MOD-SISJ's extra heavy-duty spring cushion design and broad reveal compatibility of 3-1/2" to 6-1/2" make it a dependable solution for maintaining optimal closer performance in high-traffic facilities. Specifying genuine Dormakaba replacement parts ensures full system compatibility and sustained operational integrity for your door closer installation.

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 SISJ
Features:
Dorma Door Closer Parts & Accessories

Dormakaba MOD SISJ 689 – Frequently Asked Questions

1) Can I replace just the closer arm instead of the whole door closer?
That is the point of the MOD-SISJ. It is a replacement arm in Dormakaba's modular closer arm platform, so a damaged or wrong-configuration arm can be swapped on a compatible Dorma/Dormakaba closer body without pulling and replacing the entire closer.
2) Does the Dormakaba MOD-SISJ fit other brands of door closers?
No. It is part of the Dorma/Dormakaba door closer parts family and is made to mate with compatible Dormakaba modular closer bodies. If the closer on the door is an LCN, Norton, or Yale, you need that manufacturer's arm, not this one.
3) What does the spring cushion feature on the MOD-SISJ actually do?
The spring cushion stop absorbs the door at the end of its opening swing instead of letting it slam against the arm or the wall. On the MOD-SISJ it is the extra heavy-duty version, intended for high-cycle commercial traffic where doors get thrown open hard, such as schools, hospitals, and warehouse openings.
4) What finishes does the MOD-SISJ closer arm come in for matching existing hardware?
Three finishes: 689 aluminum, 693 black, and 695 dark bronze. Those are the standard closer finishes, so matching the arm to the closer body and the rest of the openings in a building is usually straightforward.
5) Should I use a top jamb arm or a regular arm for my closer?
It depends on where the closer body sits. A top jamb arm like the MOD-SISJ is used when the closer is mounted on the frame face above the door and the arm reaches back to the door, which is the common choice on openings with narrow top rails or out-swinging doors. A regular arm mounts the closer on the pull side of the door itself with the shoe on the frame. The MOD-SISJ only covers the top jamb configuration, and it is limited to reveals of 3-1/2 to 6-1/2 inches.
6) Is the MOD-SISJ suitable for a residential door, or is it commercial only?
It is a commercial part. Dormakaba lists the MOD-SISJ as commercial grade, built for high-traffic openings in offices, retail, government buildings, and multi-tenant residential properties. It will physically work on a house door served by a matching Dormakaba closer, but it is specified for commercial duty.
How fast can I get the Dormakaba MOD SISJ 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 SISJ 689 come with a warranty?
Absolutely. The Dormakaba MOD SISJ 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 SISJ 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 SISJ 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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