Sargent 25H8 LH Door Closer Ar...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$560.11
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Sargent 25H8 LH Door Closer Arm for 351, 281, and 1431 Series with Mortise Foot Hold Open

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Model: 25H8 26D LH

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

$560.11
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Sargent 25H8 LH Door Closer Arm for 351, 281, and 1431 Series with Mortise Foot Hold Open

The Sargent 25H8 LH is a left-hand door closer arm engineered as a direct replacement component for Sargent 351, 281, and 1431 Series door closers. Featuring a mortise foot hold-open design, this arm maintains the door in an open position using a mortise-style foot mechanism, making it well suited for commercial environments where hands-free door management is required. Finished in Bright Brass, it delivers a clean, professional appearance that complements a wide range of commercial door hardware installations.

Key Features

  • Left-Hand Configuration: Factory-designated left-hand (LH) handing ensures precise fitment and correct operational geometry for left-hand door applications.
  • Series Compatibility: Designed specifically for use with Sargent 351, 281, and 1431 Series door closers, providing a reliable drop-in replacement solution.
  • Mortise Foot Hold-Open Mechanism: Incorporates a mortise foot design that engages a hold-open position, allowing doors to remain open without manual intervention for improved accessibility and traffic flow.
  • Bright Brass Finish: Finished in Bright Brass for a polished, professional aesthetic that coordinates with complementary commercial door hardware.
  • Commercial-Grade Replacement Part: Manufactured to Sargent quality standards as an OEM-compatible replacement arm, ensuring reliable performance and fitment in commercial door closer applications.
  • Door Closer Arm Category: Classified as a door closer arm replacement part, designed for seamless integration with the parent closer series without requiring additional modification.

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: Door Closer Arms
  • Parts and Accessories Type: Replacement Parts
  • Commercial/Residential: Commercial
  • Product Model: 25H8 LH
  • Features: Sargent Door Closer Parts

Typical Applications

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

Why Sargent 25H8?

Sargent door closer arm components are manufactured to the same exacting standards as the original equipment, ensuring proper fit and dependable operation in demanding commercial applications. The 25H8 LH arm's mortise foot hold-open design reflects Sargent's commitment to functional, professional-grade door hardware solutions built for long-term performance in high-traffic settings.

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:
Door Closer Arms
Parts and Accessories Type:
Replacement Parts
Commercial/Residential:
Commercial
Product Model:
25H8 LH
Features:
Sargent Door Closer Parts

Sargent 25H8 26D LH – Frequently Asked Questions

1) Which Sargent door closers does the 25H8 LH arm fit?
The 25H8 LH arm is built as a replacement arm for Sargent 351, 281 and 1431 Series door closers. If your closer body is one of those three series, this is the correct arm family; for any other Sargent closer series, it is the wrong arm.
2) Is the Sargent 25H8 arm left hand or right hand, and does handing really matter on a closer arm?
This one is factory left hand (LH). Handing matters on a hold-open arm because the mortise foot and the arm geometry are cut for one swing direction, so an LH arm on a right hand opening will not engage correctly. Determine the hand of the door first, then order the matching hand.
3) Can I replace just the arm instead of the whole Sargent closer?
Yes, that is what this part is for. The 25H8 LH is sold as a replacement arm assembly for the 351, 281 and 1431 Series, so a bent or failed arm on an otherwise working closer body can be swapped without replacing the closer.
4) What does the mortise foot hold open on the 25H8 arm actually do?
It holds the door open at a set position without anyone having to prop it. The hold-open is achieved through a mortise-style foot on the arm, so the door stays open for traffic flow or moving equipment and then closes normally once released. If you want a closer that always closes, you want a regular (non hold-open) arm instead.
5) What finishes can I get the Sargent 25H8 LH closer arm in?
Six finishes: 03 bright brass clear coated, 04 satin brass clear coated, 26 bright chrome over nickel, 26D satin chrome over nickel, 10B dark oxidized satin bronze oil rubbed, and BSP black suede powder coat. Pick the one that matches the closer cover and the rest of the trim on the opening, since a replacement arm in the wrong finish stands out immediately.
6) Will I need to modify the closer or drill the door to install the 25H8 LH arm?
No modification to the closer is called for. It mounts to the parent 351, 281 or 1431 closer as a drop-in arm. The mortise foot does need a soffit or frame mounting point suited to the mortise-style shoe, so confirm the existing hold-open foot location before you pull the old arm off.
7) Is the 25H8 arm suitable for a high traffic commercial opening, or is it a residential part?
It is a commercial-grade part, rated for the kind of traffic found in offices, schools, healthcare, retail, warehouses, multi-tenant residential and municipal buildings. Property managers standardizing on Sargent 351, 281 or 1431 closers can stock this arm as the common hold-open replacement across those openings.
How fast can I get the Sargent 25H8 26D LH 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 25H8 26D LH come with a warranty?
Absolutely. The Sargent 25H8 26D LH 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 25H8 26D LH?
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 25H8 26D LH 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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