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

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Model: 639001C

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

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

Replacement Parts for PDQ 6300 and 6400 Series Exit Devices

PDQ part number 639001-C: Head Chassis, Concealed 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-C

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-C
Commercial/Residential:
Commercial
Tags:
pdq 639001-c, 639001-c pdq, 639001-c
Subcategory:
Parts and Accessories
Parts and Accessories Type:
Chassis
Series:
6300 Series

PDQ 639001C – Frequently Asked Questions

1) What exactly is the PDQ 639001-C part, and what does it do on an exit device?
The 639001-C is the head chassis for a PDQ concealed vertical rod exit device in the wide stile configuration. The head chassis is the mechanism block at the end of the push rail that drives the concealed rod up into the top latch when the bar is pushed. It is a genuine PDQ factory replacement part, sold to service an installed device rather than as a complete exit device.
2) Which PDQ exit device series does the 639001-C head chassis fit?
It is a 6300 Series part, which is PDQ's wide stile exit device line. The replacement and conversion parts range covers both the 6300 Series wide stile and 6400 Series narrow stile devices, but this particular head chassis is the wide stile concealed vertical rod version, so it is not the part for a narrow stile 6400 device.
3) Can I buy the 639001-C to build a complete concealed vertical rod exit device?
No. The 639001-C is a replacement-only head chassis. It does not include the rods, latches, push rail, covers or strikes needed for a working device. If you are hanging new hardware, order a complete PDQ 6300 Series concealed vertical rod exit device; use this part only when the chassis on an installed device has failed.
4) My PDQ exit device latches at the top and bottom but the rods run inside the door. Is this the right chassis?
That describes a concealed vertical rod device, and the 639001-C is the concealed vertical rod head chassis. If your rods are visible on the face of the door, you have a surface vertical rod device and need the surface vertical rod chassis instead. If the device latches into a strike on the frame stop only, it is a rim device and takes the rim chassis.
5) Will this head chassis work on a fire rated door or only a panic device?
The 639001-C head chassis is offered for panic or fire applications. Note that fire rated concealed vertical rod devices run without dogging, so if your opening is fire rated, do not add the cylinder dogging conversion when servicing the device.
6) What other PDQ 6300 and 6400 parts can I get if the chassis is not the only thing that failed?
The PDQ factory parts range for the 6300 and 6400 Series also covers latchbolts, rods and connectors, push bars, covers and end caps, strikes and shims, dogging and alarm conversion kits, screwpacks, drill guides and signal switches. That lets a locksmith or maintenance crew rebuild an installed device piece by piece instead of replacing the whole unit.
7) Can I add cylinder dogging or an alarm to an existing PDQ 6300 device instead of replacing it?
Yes. PDQ offers conversion kits that add cylinder dogging or an alarm to an already installed 6300 or 6400 Series device. Those are separate kits from the 639001-C head chassis, so order them in addition if you are upgrading function at the same time as a chassis repair.
8) Is 639001-C the actual PDQ part number I should quote on a purchase order?
Yes. 639001-C is the PDQ manufacturer part number for the wide stile concealed vertical rod head chassis, and it is a genuine PDQ part. Quote the brand as PDQ and the model as 639001-C so the wide stile version ships rather than a narrow stile chassis.
9) Is the 639001-C a commercial-grade part or something for residential doors?
It is a commercial door hardware part. Concealed vertical rod exit devices of this kind are used on commercial and institutional openings, and the 639001-C is the factory PDQ service part for those devices, not a residential item.
How fast can I get the PDQ 639001C 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 639001C come with a warranty?
Absolutely. The PDQ 639001C 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 639001C?
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 639001C 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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