Sargent 68-4099 Chassis Assembly for AL-12-8863 & GL-12-8863 80 Series Exit Devices — Left Hand Reverse (LHR)

The Sargent 68-4099 is a genuine OEM Chassis Assembly engineered specifically for the Sargent 80 Series exit device. This part serves as the core operating mechanism of the exit device: when the push bar is depressed, the push rail transfers force to this chassis, which retracts the latch to allow egress. Handing: Left Hand Reverse (LHR). This assembly is a precision replacement component and is not interchangeable across different 80 Series model prefixes — always verify the full device designation before ordering.

Compatible 80 Series Exit Device Models

Device-model prefixes are life-safety relevant. This chassis is compatible with the following full-designation 80 Series models only:

• AL-12-8863 — Alarmed, Fire-Rated exit device
• GL-12-8863 — Guarded Latch, Fire-Rated exit device

The prefix designations carry distinct functional and code-compliance significance: 12- denotes a Fire-Rated configuration, AL- indicates an Alarmed device, and GL- indicates a Guarded Latch device. Substituting this part into a device bearing a different prefix is not supported and may compromise life-safety performance.

Institutional Grade Features & Benefits

• Genuine Sargent OEM Part: Manufactured to the exact tolerances of the original Sargent 80 Series exit device, ensuring proper fit, function, and code-compliant operation.
• Core Egress Mechanism: Functions as the heart of the exit device — receives force from the push rail and retracts the latch for reliable, unobstructed egress every time the bar is pushed.
• Fire-Rated Device Compatibility: Designed for use in Fire-Rated exit device configurations (12- prefix), supporting installations where UL fire-rating and life-safety compliance are required.
• Prefix-Specific Design: Built to match the AL- (Alarmed) and GL- (Guarded Latch) device configurations — not a universal chassis; cross-prefix installation is not supported.
• Correct Handing for LHR Applications: Handed Left Hand Reverse (LHR) for proper mechanical alignment and latch operation on the correct door application.
• Direct Replacement Efficiency: Eliminates the need to replace the entire exit device, reducing downtime and labor costs during maintenance or repair of existing 80 Series hardware.

Technical Details

Parts List Illustration