Sargent 25PH10 LH Heavy Duty P...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$575.30
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Sargent 25PH10 LH Heavy Duty Parallel Hold Open Door Closer Arm for 351, 281 and 1431 Series, Left Hand

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Model: 25PH10 26D LH

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

$575.30
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Sargent 25PH10 LH Heavy Duty Parallel Hold Open Door Closer Arm for 351, 281 and 1431 Series, Left Hand

The Sargent 25PH10 LH is a Heavy Duty Parallel Hold Open door closer arm designed for left-hand applications, engineered as a replacement component for Sargent 351, 281, and 1431 Series door closers. This commercial-grade arm delivers reliable hold-open functionality in a parallel arm configuration, making it well suited for high-traffic commercial environments where consistent door positioning is essential. Finished in Bright Brass, the 25PH10 LH integrates seamlessly with compatible Sargent closer series to restore or upgrade door closer performance.

Key Features

  • Heavy Duty Parallel Hold Open Configuration: Designed specifically for parallel arm mounting with integrated hold-open capability, keeping doors open at a fixed position for improved accessibility and traffic flow.
  • Left Hand (LH) Designation: Factory-configured for left-hand door applications, ensuring proper geometry and operation when installed on LH-swing doors.
  • Series Compatibility: Engineered to work with Sargent 351, 281, and 1431 Series door closers, providing a precise OEM-matched replacement solution.
  • Bright Brass Finish: Features a Bright Brass finish for a polished, professional aesthetic that coordinates with complementary door hardware in commercial settings.
  • Commercial-Grade Construction: Built to the heavy-duty standards required for commercial door hardware, supporting reliable operation in demanding, high-cycle environments.
  • Replacement Part Compatibility: Serves as a direct replacement arm for existing Sargent closer installations, minimizing downtime and simplifying maintenance without requiring full closer replacement.
  • Sargent Door Closer Parts Ecosystem: Part of the Sargent door closer parts and accessories lineup, ensuring manufacturer-sourced quality and dimensional accuracy for proper fit and function.

Certifications & Compliance

  • Commercial-Grade Door Hardware Component
  • Designed for Use with UL-Listed Sargent 351, 281, and 1431 Series Door Closers

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: 25PH10 LH
  • Features: Sargent Door Closer Parts

Typical Applications

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

Why Sargent 25PH10?

Sargent door closer arm components are manufactured to meet the precise dimensional and performance requirements of their compatible closer series, ensuring heavy-duty parallel hold-open operation that stands up to the rigors of commercial use. Engineered for the 351, 281, and 1431 Series platforms, the 25PH10 LH delivers the reliable, manufacturer-sourced quality that facilities managers and professional installers depend on for long-term door closer system performance.

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:
25PH10 LH
Features:
Sargent Door Closer Parts

Sargent 25PH10 26D LH – Frequently Asked Questions

1) Will the Sargent 25PH10 arm fit my 351 series door closer?
Yes. The 25PH10 LH parallel hold open arm is built as a replacement arm for Sargent 351, 281 and 1431 Series closers. It is an OEM-matched component for those three platforms, so you can swap the arm without replacing the closer body.
2) Is the 25PH10 handed, and what happens if I order the wrong hand?
Handing matters here. The 25PH10 LH is factory configured for left hand swing doors, and the arm geometry is set for that hand. On a right hand opening it will not operate correctly, so confirm the door swing before ordering.
3) Can I use a hold open closer arm on a fire rated door?
No. A mechanical hold open arm defeats the self closing requirement for a fire door assembly, so the 25PH10 belongs on non-rated openings. For rated doors you need a closer with electromagnetic hold open tied into the fire alarm, or a plain non hold open arm.
4) Do I have to replace the whole door closer if the arm is broken?
Not if the body is a Sargent 351, 281 or 1431. The 25PH10 LH is sold as a replacement arm for those series, so a maintenance tech can change just the arm and keep the existing closer body and mounting.
5) What finishes does the Sargent 25PH10 LH closer arm come in?
Six finishes: 03 bright brass clear coated, 04 satin brass clear coated, 10B dark oxidized satin bronze oil rubbed, 26 bright chromium plated over nickel, 26D satin chromium plated over nickel, and BSP black suede powder coat. Picking 26D or BSP is the usual move when you are matching the rest of the commercial hardware on the opening.
6) What does a parallel hold open arm actually do compared with a regular arm?
A parallel hold open arm mounts on the push side with the arm running parallel to the door face, and it holds the door at a set open position instead of letting it close every time. Use it where you want doors standing open for traffic flow or deliveries. If you do not want the door staying open, order a standard parallel arm instead of the hold open version. The 25PH10 is the heavy duty parallel hold open configuration for Sargent 351, 281 and 1431 closers.
7) Is this arm rated for high traffic commercial buildings?
It is a commercial grade, heavy duty component, intended for high traffic openings in offices, schools, healthcare, retail, government and multi tenant residential buildings. It is not a residential part.
How fast can I get the Sargent 25PH10 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 25PH10 26D LH come with a warranty?
Absolutely. The Sargent 25PH10 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 25PH10 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 25PH10 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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