Von Duprin 051705 55/88 Series...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$47.50
Von Duprin 051705 55/88 Series 5547-F Extension Rod Kit for 8' to 10' Doors

Von Duprin 051705 55/88 Series 5547-F Extension Rod Kit for 8' to 10' Doors

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Model: 51705

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

$47.50
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Von Duprin 051705 55/88 Series 5547-F Extension Rod Kit for 8' to 10' Doors

Commercial-Grade Exit Device Extension Rod Replacement Component

The Von Duprin 5547-F Extension Rod Kit is a professional-grade replacement part engineered specifically for the 55/88 Series exit device product line. Designed to accommodate tall door applications ranging from 8' to 10' in height, this kit provides the critical rod extension hardware needed to maintain reliable vertical rod exit device operation on oversized commercial door openings. Rated Grade 1 for commercial performance, this component is an essential accessory for facilities requiring compliant and dependable egress hardware on taller door configurations.

Professional Features & Benefits

  • Door Height Compatibility: Specifically engineered for door heights ranging from 8' to 10', making it ideal for tall commercial door openings that require extended vertical rod coverage.
  • Series Compatibility: Designed exclusively for use with Von Duprin 55/88 Series exit devices, ensuring precise fit and reliable integration with existing hardware.
  • Grade 1 Commercial Rating: Meets Grade 1 performance standards, delivering the durability and dependability required for demanding commercial applications.
  • Replacement Part Convenience: Provides a direct replacement solution for worn or damaged extension rod components, restoring full exit device functionality without requiring complete device replacement.
  • Professional Hardware Construction: Built to Von Duprin's commercial-grade specifications to ensure long-term performance in high-traffic door hardware applications.
  • Exit Device System Integrity: Maintains proper vertical rod alignment and operation across the full door height, supporting code-compliant egress performance.

Technical Specifications

  • Product Group: Exit Devices and Trim
  • Series: 55/88 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 Tall Door Openings
  • Educational Facilities with Oversized Egress Doors
  • Healthcare Institutions Requiring Code-Compliant Exit Hardware
  • Retail Establishments with Extended Door Height Configurations
  • Industrial and Warehouse Facilities with Large Door Openings
  • Multi-Tenant Residential Properties with Commercial-Grade Exit Devices
  • Government and Municipal Buildings with Tall Entry and Egress Doors

Why Choose Von Duprin Quality?

Von Duprin exit device parts and accessories are manufactured to Grade 1 commercial standards, ensuring reliable performance in the most demanding door hardware environments. The 5547-F Extension Rod Kit is purpose-built for the 55/88 Series product line, providing a precise-fit replacement solution that restores full system functionality. Engineered for commercial applications where dependable egress performance and long-term durability are essential requirements.

Manufacturer Resources

Von Duprin 55 Series Catalog

Product Specs

Product Group:
Exit Devices and Trim
Series:
55/88 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 51705 – Frequently Asked Questions

1) Does the 5547-F extension rod kit fit Von Duprin devices outside the 55/88 Series?
No. The 5547-F is built for the Von Duprin 55/88 Series exit device line only. If the device on your door is another Von Duprin family, this kit is the wrong part. Read the model stamped on the device chassis or the back of the touchbar before ordering, because the rod kits are not interchangeable across series.
2) Can I use this Von Duprin extension rod kit on a fire rated exit door?
The 5547-F kit carries no fire rating. On a labeled opening the whole assembly has to be fire rated, so for a fire door you need the fire rated version of the device and its rod hardware. Use this kit on non-labeled tall openings.
3) The exit device on my tall door is a Falcon, not a Von Duprin. Can I use the 5547-F rod kit?
No. The 5547-F extension rod kit is made for Von Duprin 55/88 Series exit devices, and the rod lengths and connections follow that device's geometry. For a Falcon concealed vertical rod device, the rod side of the catalog is served by parts such as the Falcon 610061 top rod for F-25-C and F-25-CWDC devices. Identify the device by its brand and model stamp before ordering rod hardware, because rod parts do not cross brands.
4) Do I have to replace the whole exit device to add rods for a tall door?
No. The 5547-F is a replacement component, so you keep the existing 55/88 Series device and add the extension rod hardware to cover the extra door height. That is the cheaper repair path when the rods are bent, worn, or too short for the opening, and it is why property managers stock this kit rather than a full device.
5) Is the Von Duprin 5547-F rod kit Grade 1?
Grade 1, and rated commercial. That is the top ANSI/BHMA durability tier and the one specified for high traffic openings like schools, hospitals, and government buildings, so it matches the grade of the 55/88 Series device it goes into.
6) My exit device rod is fine but the top latch is worn. Is this the right part?
No. The 5547-F supplies extension rod hardware for tall doors, not a latch. For a worn top latch you want the latch component for your specific device family, for example the Accentra top latch replacement for 7110/7120 devices, or the 7110F version. Match the part to the brand and model stamped on your device.
7) What is the difference between a surface vertical rod extension kit and a concealed vertical rod?
Surface rods run on the face of the door and are serviced without pulling the door apart, which is why an extension kit like the Von Duprin 5547-F can be added on site for an 8 to 10 foot opening. Concealed rods run inside the door and use a rod made for that specific device, such as the Falcon 610061 concealed vertical top rod for F-25-C and F-25-CWDC devices. If your rods are hidden inside the door edge, a surface kit is not the part.
8) I have a tall pair of doors with no mullion. Is an extension rod kit what I need, or a mullion?
Those solve different problems. The 5547-F extension rod kit is Grade 1 commercial hardware that extends vertical rod coverage on a single 8 foot to 10 foot leaf so the device latches top and bottom over the full door height. If instead you need a fixed or removable center post so two leaves can each carry a rim device, that is a mullion: the Falcon 4023 is a steel mullion for double door exit device applications, and the Falcon 525 aluminum mullion stabilizers are accessories for that mullion arrangement. A tall opening that already runs vertical rod devices takes the rod kit; a pair converting to rim devices takes the mullion.
9) My exit device is not latching at the top of a 9 foot door. Do I need a rod kit or a top latch?
Diagnose which part is failing before ordering. If the device is a Von Duprin 55/88 Series on an 8 foot to 10 foot door and the rod does not reach or align properly to the top strike, the 5547-F extension rod kit is the rod hardware that restores full height coverage. If the rod travels correctly but the latch itself is worn or broken, the failed part is the top latch assembly, which is a separate component on every brand: Accentra sells top latch replacement components for its 7110/7120 and 7110F devices under 60-7010-0049-999 and 60-7010-0050-999. Confirm rod travel by hand before deciding.
10) How do I order the Von Duprin extension rod kit for tall doors?
Order it by model 5547-F, Von Duprin part number 051705. There is one configuration, so there is no finish or handing to specify on the kit itself. What you do need to confirm before ordering is the door height, since the kit is sized for 8 to 10 foot doors, and that the device is a 55/88 Series.
11) What looks like a substitute for the 5547-F extension rod kit but is not?
Two categories get confused with it. Latch and deadlatch parts, such as the Falcon T Series 2-3/8 inch square corner deadlatch replacement part, are latching components and do nothing about rod length on a tall door. Cylinder housings, such as the Arrow 16RCR-27 SFIC rim housing for 6 and 7 pin cores in the 24/25 Series, address keyed outside access, not rod travel. The 5547-F is strictly the rod extension hardware for Von Duprin 55/88 Series vertical rod devices on 8 foot to 10 foot openings.
12) Do I need a fire rated version of the extension rod kit for a rated opening?
The Von Duprin 5547-F extension rod kit carries no fire rating, and the same is true of the Accentra 7110/7120 and 7110F top latch replacement components. On a labeled opening, the rating comes from the door, frame, and the listed exit device assembly as a whole, so confirm with the device's own listing which rod and latch parts are permitted before substituting any component.
How fast can I get the Von Duprin 51705 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 51705 come with a warranty?
Absolutely. The Von Duprin 51705 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 51705?
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 51705 from ZenSupply?
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