Sargent 904 RHR Mortise Lock B...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,009.00
$666.45
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Sargent 904 RHR Mortise Lock Body Replacement Part for Exit Devices, Right Hand Reverse

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Model: 904 RHR 26D

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

$1,009.00
$666.45
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Sargent 904 RHR Mortise Lock Body Replacement Part for Exit Devices, Right Hand Reverse

The Sargent 904 RHR is a commercial-grade mortise lock body engineered as a direct replacement part for Sargent exit device assemblies in Right Hand Reverse (RHR) door applications. Designed for professional door hardware technicians and facility maintenance teams, this component restores proper latching and locking function to compatible Sargent exit device installations. As a purpose-built replacement part, the 904 RHR ensures reliable integration with existing Sargent hardware systems in commercial environments.

Key Features

  • Right Hand Reverse (RHR) Configuration: Specifically engineered for Right Hand Reverse door handing, ensuring correct fit and operation in compatible Sargent exit device assemblies.
  • Direct Replacement Compatibility: Designed as an OEM-grade replacement part for Sargent exit device systems, maintaining the integrity and performance of the original installation.
  • Mortise Lock Body Design: Mortise-style lock body construction provides secure, reliable latching suited to the demands of commercial door applications.
  • Commercial-Grade Construction: Built to meet the performance expectations of commercial door hardware environments, including offices, institutions, and high-traffic facilities.
  • Exit Device Integration: Engineered to function within Sargent exit device assemblies, preserving proper egress and security functions when the original component requires replacement.
  • Professional Installation: Intended for installation by qualified door hardware professionals or facility maintenance personnel familiar with Sargent exit device 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: 904 RHR
  • Features: Sargent Door Closer Parts

Typical Applications

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

Why Sargent 904 RHR?

Sargent exit device replacement parts are manufactured to OEM standards, ensuring that the 904 RHR mortise lock body restores original performance and reliability to compatible exit device installations. Engineered for commercial applications where consistent egress function and security are essential, this component supports the long-term serviceability of Sargent door hardware systems in demanding, high-traffic 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:
Exit Device Parts
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
904 RHR
Features:
Sargent Door Closer Parts

Sargent 904 RHR 26D – Frequently Asked Questions

1) What is the Sargent 904 RHR and what does it do in an exit device?
The Sargent 904 is the mortise lock body that sits inside a Sargent mortise-type exit device assembly. It is the part that does the latching and locking; when it wears out or fails, the device stops securing the opening even though the push rail and trim are fine. The RHR designation means it is built for Right Hand Reverse openings. It is a commercial replacement part meant to be installed by someone who already knows Sargent exit device hardware.
2) My door is Left Hand Reverse. Can I still use the Sargent 904 RHR lock body?
No. The 904 RHR is handed for Right Hand Reverse openings only, and a mortise lock body for an exit device is not field-reversible on this part. Stand outside the opening: if the hinges are on your right and the door swings toward you, that is RHR. Hinges on the left with an outswing door is LHR, and you need the left hand reverse version of the 904 instead.
3) Which Sargent exit device series does the 904 mortise lock body fit?
It is ordered against a specific device series, and the choices are 83/89/9904, 83/89/9910, 83/89/9916, 83/89/9928, 83/89/9940, 83/89/9944, 83/89/9963, 83/89/9975, 83/89/9976, 83/8973, 83/8974, and 8966. Pull the model number off the device chassis or the original order paperwork before you buy, because the lock body is matched to the series, not universal across the Sargent line.
4) What do I need to specify when ordering a Sargent 904 mortise lock body?
Three things: the handing (RHR here), the exit device series the lock body is going into, and the finish. Miss any one of them and you get a part that either will not fit the device or will not match the rest of the hardware on the opening.
5) Is this a whole exit device or just the internal lock?
Just the mortise lock body. The push rail, chassis, trim, cylinder, and strike are not part of it. If the device itself is damaged or the trim is broken, replacing the 904 alone will not fix the opening.
6) Can I get the Sargent 904 lock body in a finish that matches the rest of my doors?
Yes, in nine finishes: 03 bright brass clear coated, 04 satin brass clear coated, 10 satin bronze clear coated, 10B dark oxidized satin bronze oil rubbed, 10BL dark oxidized satin bronze clear coated, 20D dark statuary bronze lacquered, 26 bright chromium plated over nickel, 26D satin chromium plated over nickel, and BSP black suede powder coat. For a fleet of openings, 26D and BSP are the usual standardization picks in commercial buildings.
7) Will swapping in a new 904 lock body restore the original function of my Sargent exit device?
That is what it is for. Built to OEM standards as a direct replacement inside compatible Sargent exit device assemblies, it restores latching and locking so egress and security work as originally installed, provided you match the handing, the device series, and the finish. It is not a way to change the function of the device, only to return it to how it was.
8) Is the Sargent 904 suitable for a high-traffic building, or is it a light-duty part?
It is a commercial-grade part, intended for offices, schools, healthcare, retail, warehouse, multi-tenant residential, and government buildings where exit devices see constant use. It is not a residential item.
How fast can I get the Sargent 904 RHR 26D 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 Sargent 904 RHR 26D come with a warranty?
Absolutely. The Sargent 904 RHR 26D 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 Sargent 904 RHR 26D?
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 Sargent 904 RHR 26D 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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