Von Duprin 051704 Extension Ro...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$47.50
Von Duprin 051704 Extension Rod Kit for 5547 Concealed Vertical Rod Exit Device, 8' to 10' Door

Von Duprin 051704 Extension Rod Kit for 5547 Concealed Vertical Rod Exit Device, 8' to 10' Door

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Model: 51704
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Von Duprin 051704 Extension Rod Kit for 5547 Concealed Vertical Rod Exit Device, 8' to 10' Door

Commercial-Grade Extension Rod Accessory for Tall Door Applications

The Von Duprin 051704 Extension Rod Kit is a heavy-duty commercial-grade accessory engineered specifically for use with the Von Duprin 5547 concealed vertical rod exit device. Designed to accommodate taller door openings ranging from 8 feet to 10 feet (2438 mm to 3048 mm) in height, this kit enables proper installation of the 5547 exit device on oversized commercial doors where standard rod lengths are insufficient. Part of the trusted Von Duprin 55 Series hardware line, this replacement part is rated Grade 1 and is intended for commercial applications requiring reliable panic hardware performance on tall door assemblies.

Professional Features & Benefits

  • Extended Door Height Compatibility: Designed for doors ranging from 8 feet to 10 feet (2438 mm to 3048 mm) in height, enabling proper exit device function on tall commercial door openings.
  • 5547 Device Compatibility: Engineered exclusively for use with the Von Duprin 5547 concealed vertical rod exit device, ensuring precise fit and reliable operation within the 55 Series hardware ecosystem.
  • Concealed Vertical Rod Application: Supports concealed vertical rod panic hardware configurations, maintaining a clean door appearance while delivering compliant egress performance.
  • Heavy-Duty Commercial-Grade Construction: Built to commercial standards with heavy-duty construction suitable for high-traffic door openings in demanding commercial environments.
  • Grade 1 Rated: Meets Grade 1 performance standards, reflecting the highest level of durability and reliability for commercial door hardware applications.
  • 55 Series Integration: Part of the Von Duprin 55 Series hardware line, ensuring seamless compatibility and consistent performance across the product family.
  • Non-Fire-Rated Accessory: Specified as a non-fire-rated accessory kit; verify application requirements prior to installation to ensure code compliance.

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 with Oversized Door Openings
  • Educational Facilities with Tall Corridor and Gymnasium Doors
  • Healthcare Institutions Requiring Compliant Egress Hardware
  • Retail Establishments with Large-Format Entry and Exit Doors
  • Industrial and Warehouse Facilities with High-Clearance Door Assemblies
  • Multi-Tenant Residential Properties with Commercial-Grade Exit Hardware
  • Government and Municipal Buildings with Tall Door Configurations

Why Choose Von Duprin Quality?

Von Duprin exit device parts and accessories are built to Grade 1 commercial standards, delivering the heavy-duty construction and precise compatibility required for reliable panic hardware performance in demanding environments. The 051704 Extension Rod Kit integrates seamlessly with the Von Duprin 55 Series product line, providing a trusted solution for tall door applications from 8 feet to 10 feet (2438 mm to 3048 mm). Engineered for commercial applications where dependable egress performance and code compliance are essential.

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 51704 – Frequently Asked Questions

1) Does the 051704 rod kit fit any Von Duprin concealed vertical rod device, or only the 5547?
Only the 5547. The 051704 is built specifically for the Von Duprin 5547 concealed vertical rod exit device in the 55 Series line. If your device is a different Von Duprin family, the rod set for that family is a different part, and this one won't drop in.
2) Can a Falcon 610061 vertical rod be used in place of the Von Duprin 051704 extension rod kit on a 10-foot door?
No. The Falcon 610061 is a 24 Series Monarch concealed vertical top rod built for the F-25-C and F-25-CWDC exit devices, so it belongs to the Falcon 245 Series parts family and mates to those Falcon chassis. The Von Duprin 051704 is an extension rod kit made for the Von Duprin 5547 concealed vertical rod device in the 55 Series, covering door heights from 8 feet to 10 feet. Concealed vertical rod parts are matched to the device chassis and the rod attachment at the top latch, so a Falcon rod does not carry over to a 5547 opening. If the 5547 is what is on the tall door, the 051704 is the part that extends it.
3) What do I order for a tall pair of doors instead of an extension rod kit if I want to avoid vertical rods entirely?
For a double door opening, a removable mullion changes the approach: the Falcon 4023 is a steel mullion for double door exit device applications, which lets each leaf run a rim device latching to the mullion rather than rods running the full door height. The Falcon 525 aluminum mullion stabilizers are the companion parts that steady a mullion in service. That is a different opening design than the Von Duprin 5547 concealed vertical rod device, where the rods run inside the door and the Von Duprin 051704 kit extends them for door heights of 8 to 10 feet. Choose by what the door and frame are prepped for: a mullion needs frame prep at head and sill, concealed rods need the door itself prepped.
4) Is the Von Duprin 051704 a Grade 1 part for commercial use?
Grade 1, commercial rated. That matters on an extension rod kit because the rod is the load path between the pushbar and the top latch on a tall leaf, and it sees every cycle the device sees. For a school corridor or a gym door running high traffic, this is the duty class you want under the device.
5) What is the difference between a concealed vertical rod kit like the Von Duprin 051704 and a surface vertical rod part?
Concealed rods run inside the door stile, so nothing is visible on the face of the door and there is nothing exposed to get kicked or vandalized. That is what the 5547 the 051704 serves is. Surface vertical rod devices mount their rods on the face of the door, which is easier to service and retrofit but shows hardware. The two are not interchangeable parts: a concealed rod extension goes into a door prepped for concealed rods, and a surface rod part will not fit that opening.
6) I need a longer top rod for a Falcon concealed vertical rod exit device, not a Von Duprin. What do I use?
The Von Duprin 051704 is a Von Duprin only part, so it will not serve a Falcon device. For Falcon 24 Series Monarch concealed vertical rod hardware, the Falcon 610061 concealed vertical top rod is the part that fits the F-25-C and F-25-CWDC devices. Match the rod to the device family, not just to the rod length.
7) I have a pair of tall doors with no mullion. Does the 051704 extension kit handle that, or do I need a mullion?
No mullion needed. Concealed vertical rod devices latch each leaf independently at the head and the threshold, which is the whole reason they get specified on pairs, and the 051704 just extends that reach up to a 10 foot leaf. If instead you have rim devices on a pair, that is where a removable mullion comes in, such as the Falcon 4023 steel mullion for double door exit device applications.
8) Is the Von Duprin 051704 a whole new exit device or just a replacement part?
It's a replacement and accessory part, not a device. You order it in addition to a 5547 concealed vertical rod exit device (or to service one already hanging) when the door height runs past 8 feet. Ordering the 051704 by itself gets you rods, not panic hardware.
9) We have a fire-rated tall opening. Does the Von Duprin 051704 extension rod kit work there?
The Von Duprin 051704 extension rod kit carries a fire rating of No, so it should not be specified where the opening requires fire-rated exit hardware. Among the related exit device parts, the Accentra 60-7010-0049-999 and 60-7010-0050-999 top latch components are also rated No for fire. On a fire-rated tall door, the device and every component in the assembly have to be listed together for that opening, so confirm the fire label requirement before choosing the rod kit. Where the tall door is non-rated, the 051704 covers 8 to 10 foot heights on the Von Duprin 5547 and is Grade 1.
10) Is a top latch replacement component the same thing as an extension rod kit?
No, they are different parts of the same assembly. The Accentra 60-7010-0049-999 is a top latch replacement component for the Accentra 7110 and 7120 exit devices, and the Accentra 60-7010-0050-999 is the top latch component for the 7110F. A top latch is the bolt that engages the frame at the head of the door. The Von Duprin 051704 is the rod kit that spans between the device chassis and the top latch, sized for door heights of 8 to 10 feet on the Von Duprin 5547. If the door is not latching at the head, the failure is usually at the latch or the rod adjustment; if the door is simply taller than standard, the rod length is what has to change.
11) How do I order the Von Duprin extension rod kit for a tall door, and are there options to pick?
There is one part to specify: Von Duprin model 051704, the 8 to 10 foot extension rod kit for the 5547. No handing, finish, or length options to sort out, since the kit covers the full 8 to 10 foot range. What you do need to confirm on your side is the actual door height and that the device in the door is a 5547.
12) Does an SFIC rim housing have anything to do with extending a concealed vertical rod device on a tall door?
No. The Arrow 16RCR-27 is a 6/7-pin SFIC rim housing in the Arrow 24/25 Series, which is the cylinder housing that accepts a small format interchangeable core for keyed control of an exit device from outside. It has no bearing on door height. The Von Duprin 051704 is the rod kit that lets the Von Duprin 5547 concealed vertical rod device work on doors from 8 to 10 feet tall. A tall opening that also needs outside key access requires the correct keyed trim or cylinder for the Von Duprin device in addition to the rod kit, not in place of it.
13) What is the difference between a deadlatch replacement part and a rod kit when a commercial exit door stops securing?
They fix different failures. The Falcon 23981160 is a 2-3/8 inch square corner deadlatch replacement part in the Falcon T Series, which is the latch that throws into the strike on the lock edge of the door. The Von Duprin 051704 extension rod kit is a Von Duprin 55 Series part that carries motion from the 5547 concealed vertical rod device to the latches at the head and sill on doors 8 to 10 feet tall. A door that will not stay shut at the edge points to the latch; a tall door where the top or bottom latch never fully engages points to rod length or adjustment.
How fast can I get the Von Duprin 51704 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 51704 come with a warranty?
Absolutely. The Von Duprin 51704 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 51704?
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 51704 from ZenSupply?
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