Sargent 25-H8 Mortise Foot Hol...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$311.03
$204.63
SGT-25-H8

Sargent 25-H8 Mortise Foot Hold-Open Door Closer Arm with Standard Mount Compatibility

(No reviews yet) Write a Review
New Parts & Accessories Available!

Model: 25H8 EN RH
Selected Finish is

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

$311.03
$204.63
Adding to cart… The item has been added
New Parts & Accessories
Free Shipping on orders over $199
We price match and offer bulk discounts! Click Add to Quote. It's quick and easy.
✨
Earn points with this purchase! You can redeem points for giftcards, iPads, XBox's and more. View Rewards
Free Keying on all locks
You may also like

Sargent 25-H8 Mortise Foot Hold-Open Door Closer Arm for 351/281/1431 Series

Professional Door Closer Replacement Component

The Sargent 25-H8 Mortise Foot Hold-Open Door Closer Arm is a heavy-duty, precision-engineered replacement part designed for Sargent 351, 281, and 1431 Series door closers. Featuring a mortise foot design for secure attachment, this arm combines hold-open functionality with the strength and reliability needed for commercial, institutional, and high-traffic environments. Compatible with both standard mount and top jamb applications, it ensures controlled door operation and accessibility compliance.

Professional Features & Benefits

  • Series Compatibility: Designed specifically for Sargent 351, 281, and 1431 Series door closers for guaranteed fit and performance.
  • Hold-Open Functionality: Allows doors to remain open at a preset angle for easy passage, then close smoothly and securely when released.
  • Mortise Foot Design: Provides secure, stable mounting connection for long-term reliability in demanding applications.
  • Dual Mounting Options: Compatible with both standard mount and top jamb installations for versatile application flexibility.
  • Heavy-Duty Construction: Built from durable, long-lasting materials to withstand high-traffic commercial use and meet industry standards.
  • Smooth Closing Action: Ensures controlled, consistent door movement when released from hold-open position.
  • ADA Compliance Support: Supports accessibility requirements when paired with matching Sargent door closers.
  • OEM Replacement Quality: Direct Sargent replacement part ensures perfect fit and dependable performance for efficient maintenance.

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 heavy-duty construction designed for commercial, institutional, and high-traffic environments. This OEM replacement arm ensures perfect fit and dependable performance, meeting the highest industry standards for safety and function. Engineered for demanding commercial applications where controlled door operation and accessibility compliance are 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 25H8 EN RH – Frequently Asked Questions

    1) I have LCN closers, not Sargent. Is there an equivalent hold-open arm?
    The 25-H8 is Sargent-only and won't mount to an LCN closer. For LCN bodies, match the series: the LCN 1250-3049/PA hold open arm with parallel arm shoe is non-handed with adjustable hold open for 1250 Series closers, and the LCN 4010-3049 hold open arm with adjustable elbow covers the 4020 Series. On Falcon closers, the SC60A-3049DS hold-open dead stop parallel arm and the SC70A-3049/PA hold open arm with PA bracket are the series-matched parts.
    2) Do I have to order the 25-H8 closer arm left hand or right hand?
    Yes, handing has to be specified. The 25-H8 arm is sold as left hand or right hand, and each of the five finishes is available in both. Determine the swing at the opening before ordering, because a handed arm won't swap to the opposite door.
    3) Can the 25-H8 arm be used in a top jamb installation, or only regular mount?
    Both. The 25-H8 works in standard (regular) mount and top jamb applications. For top jamb work on a 351 closer, the Sargent 351A top jamb mounting plate is the companion piece that carries the closer body on the frame face.
    4) Will a hold-open arm like this work on a fire rated door?
    No. A mechanical hold-open arm defeats the self-closing requirement on a fire door, so the 25-H8 belongs on non-rated openings such as offices, corridors between non-rated spaces, and back-of-house doors. Fire rated openings need a standard non-hold-open arm, or an electrified hold-open tied to the alarm system.
    5) What hold-open closer arm should I use if the closer on the door is an LCN 4020 instead of a Sargent?
    The Sargent 25-H8 mortise foot hold-open arm is built for Sargent 351, 281 and 1431 Series closers, so it is not the part for an LCN body. For LCN, the 4010-3049 is a hold open arm for door closers with an adjustable elbow function in the 4020 Series. Match the arm to the closer series stamped on the body rather than to the arm shape.
    6) Do I have to order handing on a replacement hold-open arm?
    For the Sargent 25-H8 you do - it is sold in left hand and right hand versions, so the door swing has to be confirmed before ordering. If a non-handed part simplifies your stocking, the LCN 1250-3049/PA is a non-handed hold open arm assembly with adjustable hold open. Property managers carrying spares across a building often prefer a non-handed arm for that reason, but it has to suit the closer series on the door.
    7) What finishes does the Sargent 25-H8 hold-open arm come in?
    Five sprayed enamel finishes: EAB sprayed brass enamel, EN sprayed aluminum enamel, EP sprayed bronze enamel to match satin bronze, EB sprayed bronze enamel to match dark satin bronze, and ED sprayed bronze enamel to match dark statuary bronze. The three bronze options are matched to different bronze tones, so pick the one that matches the closer body already on the other doors rather than assuming any bronze will blend.
    8) What does the mortise foot on this Sargent closer arm actually do?
    The mortise foot is the shoe end of the forearm that mortises into the frame soffit or head rather than surface-mounting on a parallel arm bracket. It gives a fixed, stable anchor point for the arm. If your existing closer uses a parallel arm bracket on the door face instead, a mortise foot arm is the wrong configuration for that opening.
    9) Is this closer arm rated for a busy commercial entrance?
    It is a Grade 1, heavy duty commercial component, which is the top ANSI/BHMA grade tier and the level specified for high traffic openings in schools, hospitals and municipal buildings.
    10) Do I need a handed arm, or is there a non-handed hold-open option?
    The Sargent 25-H8 is handed, so left and right hand versions are separate parts. If you are stocking one arm for a mixed set of openings and are not tied to Sargent closers, the LCN 1250-3049/PA is a non-handed hold open arm assembly for 1250 Series closers, which avoids keeping two part numbers on the shelf.
    11) Can I swap just the arm, or do I need a whole new door closer?
    If the closer body is a Sargent 351, 281 or 1431 and it still holds fluid and controls the swing, replacing the 25-H8 arm alone is the normal repair. Bent, seized or worn arms are the usual failure. Confirm the existing closer series stamped on the body before ordering, and match the handing and the finish of the existing cover.
    12) The door needs a stop built into the arm so it cannot overswing. Is the Sargent 25-H8 the right choice?
    The 25-H8 provides hold-open at a preset angle and smooth closing when released, but it is a mortise foot arm for Sargent 351, 281 and 1431 Series closers. When the opening needs a dead stop, the Falcon SC60A-3049DS is a hold-open dead stop parallel arm assembly for SC60A Series closers, which combines the hold open and the stop in the parallel arm. That solves a wall-clearance problem the 25-H8 is not designed for.
    13) If I do not need the hold-open function, is there a plainer arm I should buy instead?
    The Sargent 25-H8 is specifically the hold-open version of the mortise foot arm. Where hold-open is not wanted - a fire-rated corridor or a door that must self-close every cycle - a standard or regular arm is the equivalent part: the LCN 4000T-3077T is a standard arm replacement component for the 4000T Series, and the LCN 1260-3077 is a regular arm with parallel arm bracket for the 1260 Series. Each is tied to its own closer series, so pick by the closer on the door.
    14) Will a Sargent 25-H8 arm work on an automatic door operator?
    No. The 25-H8 is a hold-open arm for Sargent 351, 281 and 1431 Series manual door closers. An automatic operator takes its own arm assembly - the Falcon 8230-3077PLCM is a standard arm with track for 8230 Series automatic door operators in the 8200 Series. The track-style arm and the mortise foot arm are not interchangeable.
    15) What do I order for a center hung door on a floor pivot - can the 25-H8 be adapted?
    It cannot. The Sargent 25-H8 mounts by a mortise foot for standard mount and top jamb applications on Sargent 351, 281 and 1431 Series closers. A center hung pivot opening uses a different assembly entirely: the Falcon OHC100A-DP is a center hung floor pivot with end load arm for OHC100 Series overhead concealed closers. Confirm the hanging method before ordering either part.
    How fast can I get the Sargent 25H8 EN RH 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 EN RH come with a warranty?
    Absolutely. The Sargent 25H8 EN RH 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 EN RH?
    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 EN RH 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.
    !