PDQ 639001-V Head Chassis, Sur...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$228.03
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PDQ 639001-V Head Chassis, Surface Vertical Rod, Wide Stile, panic or fire (replacement only)

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Model: 639001V

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

$228.03
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PDQ 639001-V Head Chassis, Surface Vertical Rod, Wide Stile, panic or fire (replacement only)

Replacement Parts for PDQ 6300 and 6400 Series Exit Devices

PDQ part number 639001-V: Head Chassis, Surface Vertical Rod, Wide Stile, panic or fire (replacement only). A genuine PDQ part.

These are factory replacement and conversion parts for PDQ 6300 Series wide stile and 6400 Series narrow stile exit devices, covering rim, surface vertical rod, concealed vertical rod and mortise configurations. The range includes head chassis assemblies, latchbolts, rods and connectors, push bars, covers and end caps, strikes and shims, dogging and alarm conversion kits, screwpacks and signal switches, so an existing device can be serviced or upgraded without replacing the whole unit.

Key Features

  • Genuine PDQ parts for 6300 Series wide stile and 6400 Series narrow stile exit devices
  • Covers rim, surface vertical rod, concealed vertical rod and mortise device configurations
  • Panic rated and fire rated head chassis available for replacement
  • Conversion kits add cylinder dogging or an alarm to an installed device
  • Strikes, shims, drill guides and screwpacks for installation and adjustment

Technical Specifications

  • Manufacturer Part Number: 639001-V

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Group:
Exit Devices and Trim
Product Subgroup:
Exit Device Rods and Latches
Product Type:
Top Latch
Product Category:
Parts and Accessories
Product Model:
639001-V
Commercial/Residential:
Commercial
Tags:
pdq 639001-v, 639001-v pdq, 639001-v
Subcategory:
Parts and Accessories
Parts and Accessories Type:
Chassis
Series:
6300 Series

PDQ 639001V – Frequently Asked Questions

1) What is the PDQ 639001-V part, and what device does it go into?
The 639001-V is the head chassis for a PDQ surface vertical rod exit device in the wide stile 6300 Series. It is the mechanism block the push bar and vertical rods connect to, sold as a factory replacement part rather than a complete device. It covers both panic and fire rated applications.
2) Can I use the 639001-V head chassis to build a new exit device from scratch?
No. The 639001-V is a replacement-only head chassis, meant to service an exit device already hung on the door. If you need a full assembly, order a complete PDQ surface vertical rod device instead of this part, then keep the chassis on the shelf as the service item.
3) Will the 639001-V fit a PDQ 6400 narrow stile exit device?
No. The 639001-V is the wide stile chassis and belongs to the 6300 Series. The 6400 Series is PDQ's narrow stile line and takes its own narrow stile head chassis. Check which series is stamped on the device before ordering, because the two are not interchangeable.
4) My PDQ surface vertical rod device still latches but the push bar is loose and binding. Do I need a whole new device?
Usually not. The head chassis is the part that carries the push bar linkage, and PDQ sells it separately as the 639001-V for wide stile 6300 Series surface vertical rod devices. Rods, connectors, latchbolts, push bars, covers, end caps and screwpacks are also available as individual service parts, so the device can be rebuilt in place.
5) Is this chassis good for a fire rated door, or only a panic exit?
The 639001-V head chassis is listed for panic or fire use, so it covers both. On a fire rated opening the device must have no mechanical dogging, so confirm the installed device is the fire configuration before swapping the chassis in.
6) Will this surface vertical rod chassis work on a rim exit device?
No. Surface vertical rod devices drive two rods to latch at the head and the threshold, so the chassis geometry differs from a rim device, which throws a single latch into a strike on the frame. PDQ lists separate head chassis parts for rim, surface vertical rod, concealed vertical rod and mortise configurations. Match the chassis to the configuration on the door.
7) Can I add cylinder dogging or an alarm while I am replacing the chassis?
Yes, those are available as conversion kits for an installed PDQ 6300 or 6400 device, ordered separately from the 639001-V chassis. Cylinder dogging is a panic-device option only, not for fire rated openings. Signal switches are also offered as service parts if you are tying the device into monitoring.
8) Is the PDQ 639001-V a genuine factory part or an aftermarket copy?
It is a genuine PDQ factory part, manufacturer part number 639001-V, for commercial door hardware applications. Using the factory chassis matters on a fire rated device, since substituting non-listed internals voids the device listing.
How fast can I get the PDQ 639001V 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 PDQ 639001V come with a warranty?
Absolutely. The PDQ 639001V 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 PDQ 639001V?
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 PDQ 639001V 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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