Sargent 68-4104 Chassis Assembly for AL-12-8866 & GL-12-8866 Exit Devices — LHR

The Sargent 68-4104 is a genuine OEM Chassis Assembly engineered for the Sargent 80 Series exit device platform. This core operating component is the mechanical heart of the exit device: when the push bar is depressed, the push rail transfers force to this chassis, which retracts the latch bolt and permits egress. Sourced directly from Sargent, the 68-4104 is the correct replacement or repair chassis for left-hand reverse (LHR) applications on specific AL-12-8866 and GL-12-8866 device configurations.

The prefix designations on compatible 80 Series models are life-safety significant and not interchangeable. AL- denotes an Alarmed exit device; GL- denotes a Guarded Latch exit device; and 12- indicates a Fire-Rated construction. This chassis is factory-matched to those specific configurations only. Substituting this part into a differently prefixed 80 Series device is not supported and may compromise code compliance.

Institutional Grade Features & Benefits

• Genuine OEM Sargent Component: Factory-spec chassis assembly ensuring dimensional accuracy, proper latch retraction force, and maintained UL/fire-label compliance on eligible devices.
• Core Egress Mechanism: Translates push-bar force directly into latch retraction — the critical action required for reliable, code-compliant emergency egress on 80 Series exit devices.
• Life-Safety Prefix Matched: Designed exclusively for AL- (Alarmed) and GL- (Guarded Latch) device lines with 12- (Fire-Rated) designation; cross-prefix substitution is not supported.
• LHR Handing: Configured for Left-Hand Reverse (LHR) door applications. A handing diagram accompanies this listing for verification.
• 80 Series Platform Fit: Drop-in replacement for qualified 80 Series devices, minimizing downtime during scheduled maintenance or field repair.
• Maintains Device Integrity: Using the correct OEM chassis preserves alarm and guarded-latch functionality of the parent device, supporting ongoing AHJ inspections and life-safety audits.

Compatible Exit Device Models

This chassis assembly is compatible with the following Sargent 80 Series exit device models (full designation required — prefix is life-safety critical):

• AL-12-8866 — Alarmed, Fire-Rated
• GL-12-8866 — Guarded Latch, Fire-Rated

Technical Details

Door Handing Reference

Parts List Illustration