Sargent 68-4128 Chassis Assembly for 80 Series Exit Devices — RHR

The Sargent 68-4128 is an OEM Chassis Assembly engineered as the core operating component of Sargent 80 Series exit devices. When the push bar is depressed, the push rail transfers that force directly to this chassis, which retracts the latch bolt to allow immediate, code-compliant egress. This is a Right Hand Reverse (RHR) handing configuration. Compatible 80 Series exit device models include AL-8504 (Alarmed) and GL-8504 (Guarded Latch). Facilities managers, door hardware contractors, and life-safety professionals rely on genuine Sargent replacement chassis assemblies to restore full exit device function without replacing the entire unit.

Institutional-Grade Features & Benefits

• OEM Sargent Component: Genuine factory part ensures precise dimensional fit, consistent latch retraction force, and full compatibility with the 80 Series push-rail mechanism — no modification required.
• Core Operating Mechanism: Serves as the mechanical heart of the exit device; directly receives force from the push rail and converts it into reliable latch retraction for life-safety egress.
• Right Hand Reverse (RHR) Handing: Factory-configured for RHR door applications; a handing diagram accompanies the listing for reference.
• Broad 80 Series Compatibility: Designed specifically for AL-8504 (Alarmed) and GL-8504 (Guarded Latch) 80 Series exit device models, covering common commercial and institutional alarmed-door applications.
• Cost-Effective Repair Solution: Replacing the chassis assembly restores the exit device to full operating condition, extending the service life of the door hardware investment and avoiding costly full-unit replacement.
• Life-Safety Compliance: Maintaining a properly functioning chassis assembly supports ongoing compliance with NFPA 101, IBC egress requirements, and AHJ inspections on panic hardware and fire-rated door assemblies.

Applications

• Repair and restoration of Sargent 80 Series exit devices on commercial, institutional, and industrial doors
• Alarmed exit door assemblies utilizing the AL-8504 model
• Guarded-latch exit door assemblies utilizing the GL-8504 model
• Schools, hospitals, government facilities, and high-traffic commercial buildings requiring dependable panic hardware performance
• Preventive maintenance programs for door hardware on fire-rated and non-rated egress doors

Technical Details

Door Handing Reference

Parts List Illustration