Sargent 68-4940 55-57 Rail Assembly – J-Wide | 80 Series Exit Device Replacement Part

The Sargent 68-4940 is a genuine OEM Rail Assembly designed as a direct replacement component for the Sargent 80 Series exit device. Sold under the 55-57 designation, this J-wide rail stock accommodates door widths from 37" to 42", making it the correct size selection for wider-than-standard openings commonly found in commercial, institutional, and industrial facilities. Sourcing an authentic Sargent OEM assembly ensures proper fit, finish, and long-term performance consistent with the original device specification.

Institutional Grade Features & Benefits

• Genuine OEM Component: Manufactured by Sargent to exact factory tolerances, ensuring a precise drop-in fit within the 80 Series exit device without modification.
• J-Wide Rail Stock (37"–42" Doors): The J-wide designation covers door widths in the 37-inch to 42-inch range, suitable for oversized commercial openings where standard rail lengths fall short.
• 80 Series Compatibility: Engineered exclusively for the Sargent 80 Series panic hardware and exit device platform, preserving the integrity and code-compliance of the installed device.
• Reliable Replacement Solution: Replacing a worn, damaged, or incorrect-length rail assembly restores full exit device function and helps maintain life-safety egress performance on the door.
• Simplified Maintenance: Using the correct OEM part number (68-4940) streamlines procurement for facility managers, locksmiths, and door hardware distributors servicing Sargent exit devices in the field.

Technical Details