Sargent 10-3138 Cylinder Tailp...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$19.72
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Sargent 10-3138 Cylinder Tailpiece for 10L and 7L Series 7-Pin XC Commercial Replacement Part

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Model: 10-3138

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

$19.72
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Sargent 10-3138 Cylinder Tailpiece for 10L and 7L Series 7-Pin XC Commercial Replacement Part

The Sargent 10-3138 is a precision-engineered cylinder tailpiece designed as a direct replacement component for Sargent 10L and 7L series lock cylinders utilizing 7-Pin XC keyway configurations. Purpose-built for commercial-grade mechanical lock systems, this tailpiece ensures proper cylinder-to-lock body engagement and smooth, reliable operation when servicing or replacing worn components in compatible Sargent hardware. As a manufacturer-sourced replacement part, it maintains the fit, form, and function standards of the original Sargent specification.

Key Features

  • Series Compatibility: Designed specifically for Sargent 10L and 7L series lock cylinders, ensuring precise fitment and correct mechanical engagement with compatible lock bodies.
  • 7-Pin XC Keyway Configuration: Engineered for 7-Pin XC cylinder systems, maintaining the security and operational integrity of the original lock assembly.
  • Direct Replacement Component: Manufacturer-sourced replacement part that preserves the original fit, form, and function of the Sargent cylinder assembly.
  • Commercial-Grade Construction: Built to the rigorous standards of Sargent's commercial mechanical lock product line, supporting demanding institutional and commercial applications.
  • Restores Proper Cylinder Function: Replaces worn or damaged tailpieces to restore smooth cylinder rotation and reliable lock actuation without full cylinder replacement.
  • Sargent Door Hardware Ecosystem: Part of Sargent's comprehensive parts and accessories program, supporting long-term serviceability of installed Sargent lock hardware.

Technical Specifications

  • Department: Door Hardware
  • Product Category: Mechanical Locks
  • Product Group: Parts and Accessories
  • Subcategory: Parts and Accessories
  • Product Subgroup: Parts and Accessories
  • Product Type: Cylinder Tailpiece
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 10-3138
  • Features: Sargent Door Closer Parts

Typical Applications

  • Commercial Office Buildings
  • Educational Facilities
  • Healthcare Institutions
  • Government and Municipal Buildings
  • Industrial and Warehouse Facilities
  • Multi-Tenant Residential Properties
  • Retail Establishments

Why Sargent 10-3138?

Sargent mechanical lock components are engineered to exacting commercial standards, ensuring that replacement parts like the 10-3138 cylinder tailpiece deliver the same reliable performance as the original factory-installed hardware. Specifying genuine Sargent replacement parts maintains the integrity of the installed lock system and supports the long-term serviceability demands of high-traffic commercial environments.

Manufacturer Resources

Product Specs

Department:
Door Hardware
Product Category:
Mechanical Locks
Product Group:
Parts and Accessories
Subcategory:
Parts and Accessories
Product Subgroup:
Parts and Accessories
Product Type:
Cylinder Tailpiece
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
10-3138
Features:
Sargent Door Closer Parts

Sargent 10-3138 – Frequently Asked Questions

1) What Sargent locks does the 10-3138 cylinder tailpiece fit?
The 10-3138 tailpiece is made for Sargent 10L and 7L series lock cylinders set up with a 7-Pin XC keyway. It is the piece that transfers cylinder rotation into the lock body, so it has to match both the series and the keyway configuration. On a 10 Line or 7 Line lever lock with 7-Pin XC cylinders, this is the correct part.
2) Can I replace just the tailpiece instead of the whole Sargent cylinder?
Yes. The 10-3138 is sold as a standalone replacement part, so a worn or damaged tailpiece can be swapped to restore proper cylinder rotation and lock actuation without buying a complete cylinder. That also means the existing keying stays as it is, which matters if the opening is on a master key system.
3) Is the Sargent 10-3138 a genuine Sargent part or an aftermarket copy?
It is a manufacturer-sourced Sargent component, built to the original fit, form and function specification for the 10L and 7L cylinder assembly. For facilities standardizing on Sargent hardware, that keeps the lock assembly to factory spec rather than mixing in an aftermarket piece.
4) What exactly does a cylinder tailpiece do on a Sargent lever lock?
The tailpiece is the flat drive bar that runs off the back of the cylinder plug into the lock body. Turning the key turns the plug, the plug turns the tailpiece, and the tailpiece throws the lock mechanism. If it is worn, bent or stripped, the key will turn but the lock will not actuate reliably, which is exactly the failure the 10-3138 corrects on 10L and 7L cylinders.
5) Is the 10-3138 tailpiece suitable for high-traffic commercial doors?
It is a commercial-grade component from Sargent's mechanical lock line, intended for commercial rather than residential use. Typical placements are office buildings, schools, hospitals, government buildings, warehouses, retail, and multi-tenant residential properties, which is the traffic level this part is built around.
6) How do I order the Sargent 10-3138 tailpiece, are there options to specify?
There is nothing to configure. The 10-3138 ships as a single part number with no finish, length or handing options, so the only decision is confirming your cylinders are 10L or 7L series with a 7-Pin XC keyway before you order.
How fast can I get the Sargent 10-3138 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 Sargent 10-3138 come with a warranty?
Absolutely. The Sargent 10-3138 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 Sargent 10-3138?
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 Sargent 10-3138 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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