Von Duprin 050184 55 Series 55...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$1,352.00
$977.96
Von Duprin 050184 55 Series 55NL Center Case Kit Replacement Part

Von Duprin 050184 55 Series 55NL Center Case Kit Replacement Part

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Model: 050184 26D
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In Stock (leaves warehouse same day if ordered before 3pm ET)

$1,352.00
$977.96
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Von Duprin 050184 55 Series 55NL Center Case Kit Replacement Part

Commercial-Grade Exit Device Replacement Component for the 55 Series

The Von Duprin 050184 55 Series 55NL Center Case Kit is a genuine replacement part designed specifically for compatible Von Duprin 55 Series exit devices. Engineered to commercial Grade 1 standards, this center case kit provides a reliable solution for restoring or maintaining the performance of 55 Series exit device installations. Intended for commercial door hardware applications, this part ensures continued dependable operation in demanding environments where exit device integrity is critical.

Professional Features & Benefits

  • Genuine 55 Series Compatibility: Designed specifically for Von Duprin 55 Series exit devices, ensuring proper fit and function for the 55NL configuration.
  • Grade 1 Commercial Quality: Meets Grade 1 standards for commercial door hardware, delivering the durability and reliability required in high-traffic commercial applications.
  • Targeted Replacement Solution: Serves as a direct replacement center case kit, allowing restoration of existing 55 Series exit devices without full unit replacement.
  • Commercial-Grade Construction: Built to Von Duprin's professional specifications for exit device components, supporting long-term performance in commercial settings.
  • Exit Device Parts and Accessories Classification: Categorized as an exit device part within the Von Duprin product ecosystem, ensuring straightforward identification and ordering for maintenance professionals.
  • Door Hardware Department Compatibility: Designed for integration within commercial door hardware systems, supporting facility maintenance and upgrade programs.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 55 Series
  • Grade: Grade 1
  • Product Subgroup: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Type: Exit Devices Parts
  • Commercial/Residential: Commercial
  • Parts and Accessories Type: Replacement Parts
  • Product Attribute: Parts and Accessories
  • Fire Rating: No
  • Product Category: Exit Devices and Trim
  • Department: Door Hardware

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 Von Duprin Quality?

Von Duprin exit device parts and accessories are manufactured to Grade 1 commercial standards, ensuring that replacement components meet the same performance benchmarks as original equipment. The 55 Series 55NL Center Case Kit reflects Von Duprin's commitment to providing reliable, professionally specified replacement parts for commercial door hardware. Facility managers and door hardware professionals can depend on genuine Von Duprin components to maintain the integrity and performance of installed exit device systems.

Manufacturer Resources

Von Duprin 55 Series Catalog

Product Specs

Product Group:
Exit Devices and Trim
Series:
55 Series
Grade:
Grade 1
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Type:
Exit Devices Parts
Commercial/Residential:
Commercial
Parts and Accessories Type:
Replacement Parts
Product Attribute:
Parts and Accessories
Fire Rating:
No
Product Category:
Exit Devices and Trim
Department:
Door Hardware

Von Duprin 050184 26D – Frequently Asked Questions

1) What exactly is the Von Duprin 050184 center case kit, and what does it replace on a 55 Series exit device?
The 050184 is a genuine Von Duprin replacement center case kit for the 55 Series exit device, in the 55NL (night latch) configuration. The center case is the housing at the middle of the device that carries the push rail mechanism. Ordering this kit lets you rebuild an installed 55 Series device instead of pulling the whole unit off the door.
2) Will the Von Duprin 050184 kit work on a fire rated exit device?
No. The 050184 center case kit carries no fire rating, so it should not be used to service a labeled fire exit device opening. Fire rated hardware has to be restored with components listed for that assembly. On a non-rated 55 Series device, panic-only, it is the correct part.
3) Can I use the 050184 on a Von Duprin 99 or 33A device, or on another brand of exit device?
No. The 050184 center case kit is made for the Von Duprin 55 Series and the 55NL configuration specifically. Exit device center cases are not interchangeable across series or brands, so a 99, 33A, or a competitor's device needs the part number for that family. Confirm the series marking on your device before ordering.
4) Can an Accentra 7110 top latch component be used to repair a Von Duprin 55 Series device?
No. The Von Duprin 050184 is a center case kit for the 55NL configuration of the Von Duprin 55 Series exit device, and it is built for that series specifically. The Accentra 60-7010-0049-999 is a top latch replacement component for Accentra 7110/7120 devices, and the 60-7010-0050-999 covers the 7110F. Those are a different manufacturer's device family and a different location on the device - the top latch rather than the center case - so they do not serve as a repair part for a 55 Series chassis.
5) Is this Von Duprin part suitable for a high traffic commercial door, or is it a light duty component?
It is built to Grade 1, the heaviest commercial duty level for door hardware, and it is classified as commercial rather than residential. That is the same performance tier you would expect on the original device, which is what matters when you are servicing school corridors, hospital wings, or a retail back-of-house door that cycles all day.
6) What finishes does the Von Duprin 050184 center case kit come in, and how do I match the device already on my door?
Four finishes: 626 satin chrome, 625 bright chrome, 613 oil rubbed bronze, and 605 bright brass. Match the finish code stamped or specified on the existing device rather than eyeballing it, since 626 satin chrome and 625 bright chrome read very differently once installed side by side on adjacent openings.
7) My exit device problem is at the top latch, not the push rail. Is this the right part?
Probably not. The 050184 addresses the center case, the mechanism behind the push rail. If the fault is a top latch on a vertical rod device, you want a latch or rod component instead. ZenSupply stocks top latch replacement components for Accentra 7110/7120 devices and a Falcon 610061 concealed vertical top rod for the 24 Series Monarch F-25-C and F-25-CWDC. Diagnose whether the failure is at the rail, the rod, or the latch before you order.
8) I have a pair of doors and the problem is that the devices will not secure properly at the center. Do I need this kit?
A center case kit rebuilds one device; it does nothing about how a pair of doors comes together. If your issue is securing a pair with rim devices, you need a mullion, not a rebuild kit. ZenSupply carries the Falcon 4023 steel mullion for double door exit device applications, and Falcon 525 aluminum mullion stabilizers. Use the 050184 only when the fault is inside a 55 Series device itself.
9) Is it worth rebuilding a 55 Series device with this kit instead of replacing the whole exit device?
That is exactly what this kit is for. It is a direct replacement center case, so a maintenance tech can restore an existing 55 Series installation without removing the device, re-prepping the door, or disturbing the trim and strike. For a facility standardized on 55 Series across many openings, keeping center case kits on the shelf keeps the fleet consistent. If the device is on a labeled fire door, though, this part is not rated for it.
10) We need a rod, not a center case - what is the equivalent part for a concealed vertical rod device?
The Von Duprin 050184 is a center case kit, the chassis assembly at the middle of a 55 Series 55NL device, and it does not include vertical rods. For a concealed vertical rod repair, the Falcon 610061 is a 24 Series Monarch concealed vertical top rod for F-25-C and F-25-CWDC exit devices. That is a Falcon part for Falcon devices, so it is the right category of component but only for those device models.
11) What should I order for a double door pair instead of a center case kit?
A center case kit like the Von Duprin 050184 repairs an existing 55 Series device on a single leaf; it does nothing for the gap between two leaves. For a double door application the Falcon 4023 is a steel mullion for double door exit device applications, and the Falcon 525 aluminum mullion stabilizers are an exit device accessory for mullion installations. Those address the pair of doors rather than the internals of one device.
12) Is a rim cylinder housing an alternative to the 55NL center case kit for a night latch function?
They do different jobs. The Von Duprin 050184 is the center case kit for the 55NL night latch configuration of the 55 Series device - the mechanical chassis. The Arrow 16RCR-27 is an SFIC rim housing in 6/7-pin for the Arrow 24/25 Series, which is the cylinder side of the opening. A night latch retrofit can need both a functioning center case and a cylinder, but neither part substitutes for the other.
13) For standardizing repair parts across a commercial facility, how does the 55NL center case kit compare to other exit device components we stock?
The Von Duprin 050184 is a commercial Grade 1 replacement part in the Von Duprin 55 Series, ordered in 626 satin chrome, 625 bright chrome, 613 oil rubbed bronze, or 605 bright brass so it can be matched to existing trim. Because repair components track the device family, a facility running mixed brands will still need brand-specific parts alongside it - Accentra top latches for 7110/7120 devices, or the Falcon 610061 top rod for F-25-C devices. Standardizing on one device series is what reduces the parts list.
How fast can I get the Von Duprin 050184 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 Von Duprin 050184 26D come with a warranty?
Absolutely. The Von Duprin 050184 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 Von Duprin 050184 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 Von Duprin 050184 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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