Sargent 68-4077 Chassis Assembly for 80 Series Exit Devices — LHR

The Sargent 68-4077 is a genuine OEM Chassis Assembly engineered for the Sargent 80 Series exit device line. This core operating component serves as the mechanical heart of the exit device: when the push bar is depressed, the push rail transfers that force directly to the chassis, which retracts the latch to allow egress. Specified for Left Hand Reverse (LHR) applications, this chassis assembly is a direct-fit replacement part that restores proper egress function to Sargent 80 Series panic hardware installations.

Institutional-Grade Features & Benefits

• Genuine Sargent OEM Part: Manufactured to original factory tolerances, ensuring reliable, code-compliant performance in the Sargent 80 Series exit device.
• Core Egress Mechanism: Directly receives push-rail force and retracts the latch, maintaining the fast, dependable egress action required in high-traffic commercial and institutional openings.
• Fire-Rated Device Compatibility: Compatible with fire-rated 80 Series models, supporting installations where UL-listed fire-exit hardware is required.
• Alarmed & Guarded Latch Model Support: Fits both the AL-12-8816 (Alarmed, Fire-Rated) and GL-12-8816 (Guarded Latch, Fire-Rated) configurations, covering a broad range of security and life-safety applications.
• Handing: Left Hand Reverse (LHR): Specified for LHR door applications — a handing diagram accompanies the listing for reference.
• Precision Replacement Part: Restores original factory operation to worn or damaged 80 Series exit devices, extending service life and avoiding full-device replacement costs.

Applications

The Sargent 68-4077 Chassis Assembly is well-suited for facility maintenance teams, door hardware distributors, and life-safety contractors servicing Sargent 80 Series exit devices in commercial buildings, schools, hospitals, government facilities, and any occupancy requiring fire-rated or alarmed panic hardware. It is the correct replacement chassis for LHR openings equipped with the AL-12-8816 or GL-12-8816 exit device models.

Technical Details

Door Handing Reference

Parts List Illustration