Dormakaba 74904 Inside Housing...
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$167.00
$115.00
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Dormakaba 74904 Inside Housing Assembly Passage Cylinder Housing Replacement Part in Satin Chrome

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Model: 74904-26D-01

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

$167.00
$115.00
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Dormakaba 74904 Inside Housing Assembly Passage Cylinder Housing Replacement Part in Satin Chrome

The Dormakaba 74904 Inside Housing Assembly is a commercial-grade replacement part designed for passage function applications, finished in Satin Chrome (26D) for a clean, professional aesthetic. Engineered as a genuine Dormakaba cylinder housing component, this inside housing assembly is built to restore or maintain the performance of compatible Dormakaba mechanical lock systems. Its passage configuration makes it well-suited for interior doors where free movement is required without keyed or privacy restrictions. As an OEM replacement part, it ensures proper fit and function within supported Dormakaba lock assemblies.

Key Features

  • Passage Function: Configured for passage operation, allowing free movement through the door without a keying or turn-button requirement, ideal for interior commercial doors.
  • Satin Chrome Finish (26D): Features a durable Satin Chrome finish that coordinates with a wide range of commercial door hardware and architectural trim styles.
  • Genuine Dormakaba Replacement Part: Sourced directly as a Dormakaba OEM component, ensuring precise compatibility and fit with supported Dormakaba mechanical lock assemblies.
  • Cylinder Housing Design: Engineered as a cylinder housing assembly for the inside of the door, providing a secure and reliable interface for the lock mechanism.
  • Commercial-Grade Construction: Built to the quality standards expected in commercial applications, delivering consistent performance in high-use environments.
  • Easy Integration: Designed to integrate seamlessly into compatible Dormakaba lock systems as a direct replacement, minimizing downtime during maintenance or repair.

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: Cylinder Housing
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 74904-26D-01
  • Features: Dormakaba Parts and Accessories

Typical Applications

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

Why Dormakaba 74904?

Dormakaba is a globally recognized manufacturer of access and security solutions, and their replacement parts division upholds the same exacting standards as their complete lock systems. The 74904 Inside Housing Assembly is a genuine OEM component, ensuring that maintenance and repair of Dormakaba mechanical lock installations preserves original performance characteristics. Specifying authentic Dormakaba parts minimizes compatibility risk and supports long-term reliability in demanding commercial environments.

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:
Cylinder Housing
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
74904-26D-01
Features:
DormaKaba Parts and Accessories

Dormakaba 74904-26D-01 – Frequently Asked Questions

1) What exactly is the Dormakaba 74904 inside housing assembly, and is it the whole lock?
It is a cylinder housing assembly for the inside of the door, not a complete lockset. Model 74904-26D-01 is a genuine Dormakaba OEM replacement part that reinstates the interior housing on a compatible Dormakaba mechanical lock. If your lock chassis, latch or exterior trim is also damaged, those are separate parts.
2) Does the 74904 housing lock or key from the inside?
No. It is built for passage function, so the inside housing gives free operation with no key cylinder and no privacy turn button. If the opening needs to lock, a passage housing is the wrong part for it.
3) Can I use a generic aftermarket housing instead of the Dormakaba 74904?
The 74904 is a genuine Dormakaba OEM component, which is what keeps the fit and the interface with the lock mechanism correct. Housings from other makers are built to their own chassis: the Kaba Ilco R2800 Series housing, for instance, is a small format IC core convertible housing, and the Kaba Ilco S26506 is a large format IC core mortise housing in the Schlage size. Those are core housings for keyed applications, not a passage inside housing for a Dormakaba chassis.
4) Is the Kaba Ilco R2800 convertible housing an equivalent replacement for the Dormakaba 74904 inside housing assembly?
No. The Dormakaba 74904 is an inside housing assembly configured for passage function, meaning the door operates freely with no cylinder or turn button involved. The Kaba Ilco R2800 is a small format interchangeable core convertible housing, built to accept an SFIC core for keyed operation. If the opening needs to stay keyed, the R2800 is the cylinder housing direction; if you are restoring a passage set, stay with the 74904.
5) What finish is the Dormakaba 74904 and will it match my other door hardware?
Satin Chrome, listed as 626 (also shown as 26D), which is the most common commercial finish and coordinates with standard brushed chrome levers, closers and push plates. It ships in that one finish only, so if your building is standardized on brass or oil-rubbed bronze it will not match.
6) I need a housing that takes an interchangeable core instead of passage. What should I look at?
The 74904 has no cylinder provision at all, so it cannot accept a core. For an IC core housing, Kaba Ilco offers the R2800 Series small format IC core convertible housing, and the S26506 large format IC core convertible housing in the Schlage mortise size. Pick based on whether your keying system is small format or large format.
7) Can I keep my existing lock and just swap the inside housing on a Dormakaba mechanical lock?
That is what the part is for. It is sold as a direct replacement inside housing for supported Dormakaba mechanical lock assemblies, so a maintenance tech can restore the interior side without replacing the full lock and without re-prepping the door.
8) What is the difference between the Kaba Ilco R2800 and S26506 housings when the 74904 does not fit my application?
The two differ in core format and prep. The R2800 Series is a convertible housing for small format interchangeable cores. The S26506 is a mortise housing for large format interchangeable cores in the Schlage size. Choose by which core family your facility already keys to and whether the door is prepped for mortise. Neither is a passage part, which is what the Dormakaba 74904 inside housing assembly is.
9) Is the Dormakaba 74904 rated for commercial traffic or is it a residential part?
Commercial. It is specified as a commercial-grade component for Dormakaba mechanical lock systems and is used in offices, schools, healthcare facilities, retail, multi-tenant residential, government buildings and warehouses.
How fast can I get the Dormakaba 74904-26D-01 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 74904-26D-01 come with a warranty?
Absolutely. The Dormakaba 74904-26D-01 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 74904-26D-01?
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 74904-26D-01 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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