Sargent 25-UO Universal Door C...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$217.72
$157.44
Sargent 25-UO Universal Door Closer Arm for 351, 281, - Standard, Parallel & Top Jamb Mount

Sargent 25-UO Universal Door Closer Arm for 351, 281, - Standard, Parallel & Top Jamb Mount

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Model: 25UO EN
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In Stock (leaves warehouse same day if ordered before 3pm ET)

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$157.44
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Sargent Universal Door Closer Arm for 351, 281, 1431 Series - Multi-Mount Configuration

Commercial-Grade Replacement Arm for Multiple Mounting Configurations

The Sargent Universal Door Closer Arm delivers versatile compatibility with Sargent 351, 281, and 1431 Series door closers across standard, parallel, and top jamb applications. Engineered from durable, high-quality materials, this commercial-grade replacement arm ensures smooth, reliable door operation in high-traffic environments. The universal design provides a precise OEM fit for both new installations and maintenance replacements in offices, schools, hospitals, and retail spaces.

Professional Features & Benefits

  • Universal Series Compatibility: Fits Sargent 351, 281, and 1431 Series door closers for versatile installation options across multiple product lines.
  • Multiple Mounting Configurations: Works with standard, parallel, and top jamb mounting options to accommodate various door and frame requirements.
  • Heavy-Duty Construction: Durable, high-quality materials ensure long service life and consistent performance in demanding commercial applications.
  • Precision OEM Fit: Designed to match original specifications for optimal performance and direct replacement capability with minimal downtime.
  • Smooth Operation: Provides consistent, controlled door movement for reliable closing performance throughout the operational cycle.
  • Commercial-Grade Quality: Perfect for offices, schools, healthcare facilities, and retail environments where dependable door control is essential.
  • Easy Installation: Direct OEM replacement design enables fast setup and reduces installation complexity for maintenance teams.

Technical Specifications

  • Refer to manufacturer documentation for complete technical specifications.

Installation & Operation

This replacement arm is designed for use with compatible Sargent 351, 281, and 1431 Series door closers. Refer to the parent device installation instructions and manufacturer documentation for proper integration. Ensure compatibility with existing hardware before installation.

Professional Applications

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

Why Choose Sargent Quality?

Sargent door closer components deliver professional-grade reliability with durable, high-quality materials engineered for demanding commercial applications. The universal design ensures precise OEM fit and optimal performance across multiple door closer series. Engineered for demanding commercial applications where dependable door control performance is essential.

Product Specs

Grade:
Grade 1
Product Type:
Door Closer Arms
Duty Level:
Heavy Duty
Product Group:
Door Controls
Product Subgroup:
Parts and Accessories
Subcategory:
Parts and Accessories
Commercial/Residential:
Commercial
Product Category:
Door Controls
Department:
Door Hardware

Parts & Accessories

    Sargent 25UO EN – Frequently Asked Questions

    1) Which Sargent door closers does the 25-UO universal arm fit?
    The Sargent 25-UO universal arm is made for Sargent 351, 281, and 1431 Series closers. It is an OEM-fit replacement arm, so it goes back onto those closer bodies without adapting anything. If your closer body is a different Sargent series or another brand entirely, this is not the arm for it.
    2) Can the Sargent 25-UO arm be used for parallel arm and top jamb installs, or only regular arm?
    All three. The 25-UO works in standard (regular arm), parallel arm, and top jamb mounting configurations, which is why it carries the universal designation. That covers the usual cases: pull side regular arm, push side parallel arm under a soffit, and top jamb where the closer sits on the frame face.
    3) My closer body is fine but the arm is bent and the door slams. Do I replace the whole closer?
    If the body still holds oil and the valves adjust, replacing just the arm is the normal fix. The 25-UO is sold as a maintenance replacement arm for 351, 281, and 1431 Series closers and mounts back in the original standard, parallel, or top jamb configuration, so the closer stays on the door and the frame prep is reused.
    4) I need a hold-open arm instead of a standard closer arm - what are my options?
    The Sargent 25-UO is a universal closer arm for the Sargent 351, 281 and 1431 Series covering standard, parallel and top jamb mounting, and it does not carry a hold-open function. If the opening needs to stay propped, the LCN 1250-3049/PA is a hold open arm assembly with a parallel arm shoe in a non-handed design with adjustable hold open, the LCN 4010-3049 is a hold open arm with an adjustable elbow function, and the Falcon SC70A-3049/PA is a hold open arm supplied with a PA bracket. Each of those is tied to its own closer series, so match the arm to the closer body already on the door.
    5) What is the closest equivalent to the Sargent 25-UO arm if the closer on the door is an LCN?
    The Sargent 25-UO fits Sargent 351, 281 and 1431 Series closers and will not cross over to another manufacturer's body. For a standard, non-hold-open LCN arm, the LCN 4000T-3077T is a standard arm replacement component for the 4000T Series and the LCN 1260-3077 is a regular arm supplied with a parallel arm bracket for the 1260 Series. Identify the closer series stamped on the body before ordering, since those arms are series-specific.
    6) Can I use the Sargent 25-UO arm on a center hung pivoted door or an automatic operator?
    No. The Sargent 25-UO is a surface closer arm for Sargent 351, 281 and 1431 Series closers in standard, parallel or top jamb mounting. A center hung pivoted opening uses a different assembly such as the Falcon OHC100A-DP, a center hung floor pivot with end load arm for the OHC100A Series, and a low energy automatic operator uses an operator arm such as the Falcon 8230-3077PLCM standard arm with track for the 8200 Series 8230 operators. Neither application is served by a surface closer arm.
    7) Do I need a separate mounting plate for a top jamb install with the 25-UO arm?
    For a top jamb application on the 351, Sargent offers the 351A top jamb mounting plate as a companion part. The 25-UO arm itself is the arm assembly, so if your frame condition calls for the top jamb plate, order it alongside the arm rather than expecting it in the same box.
    8) What finishes does the Sargent 25-UO closer arm come in?
    Five sprayed enamel finishes: EAB sprayed brass, EN sprayed aluminum, EP sprayed bronze to match satin bronze, EB sprayed bronze to match dark satin bronze, and ED sprayed bronze to match dark statuary bronze. Property managers replacing one arm in a run of doors should pick the enamel code that matches the closer bodies already hanging, since the sprayed enamels are matched to those bronze tones rather than being plated finishes.
    9) Is the Sargent 25-UO arm heavy duty enough for a school or hospital entrance?
    It is a Grade 1, heavy duty commercial component, which is the classification used for the highest-traffic openings. Sargent lists it for offices, schools, healthcare facilities, retail, industrial buildings, multi-tenant residential, and government work.
    10) The door needs a dead stop so it cannot swing into the wall - is the 25-UO the right arm?
    The Sargent 25-UO is a universal replacement arm for Sargent 351, 281 and 1431 Series closers in standard, parallel and top jamb mounting; stopping the swing is handled separately. Where the arm itself needs to provide it, the Falcon SC60A-3049DS is a hold-open dead stop parallel arm assembly for the SC60A Series, which combines the stop and hold-open in the arm.
    11) My parallel arm install needs a bracket - does the Sargent 25-UO include one or should I look at an assembly that comes with it?
    The Sargent 25-UO covers standard, parallel and top jamb mounting for Sargent 351, 281 and 1431 Series closers, and a Sargent 351A top jamb mounting plate is offered alongside it for top jamb work. If you want an arm that arrives as a package with its parallel arm hardware, the LCN 1260-3077 is a regular arm supplied with a parallel arm bracket, the LCN 1250-3049/PA includes a parallel arm shoe, and the Falcon SC70A-3049/PA ships with a PA bracket - each for its own closer series.
    12) Do I need to order a left and right hand version of the 25-UO arm?
    The Sargent 25-UO is a universal arm that covers standard, parallel and top jamb mounting on Sargent 351, 281 and 1431 Series closers, so mounting configuration is selected at install rather than by ordering separate parts; you choose only the finish, offered in EAB sprayed brass enamel, EB and ED sprayed bronze enamels, EN sprayed aluminum enamel and EP sprayed bronze enamel to match satin bronze. Among comparable arms, the LCN 1250-3049/PA is likewise described as a non-handed design.
    How fast can I get the Sargent 25UO EN 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 25UO EN come with a warranty?
    Absolutely. The Sargent 25UO EN 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 25UO EN?
    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 25UO EN 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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