Dormakaba 401143 E-Plex Tailpiece Kit, Std Cyl

The Dormakaba 401143 is the replacement tailpiece kit for the E-Plex series of electronic access control locks in standard cylinder configurations. "Std Cyl" means standard conventional mortise cylinder, not interchangeable core. If your E-Plex lock uses a standard mortise cylinder and the tailpiece is missing, damaged, or incompatible with a cylinder being retrofitted, the 401143 is the correct replacement part.

The Dormakaba E-Plex series (E-Plex 2000, E-Plex 3000, E-Plex 5000) ships with a standard Schlage C keyway cylinder and additional tailpieces to accommodate other conventional cylinder types. The 401143 provides replacement or additional tailpieces for standard cylinder configurations across those series. For all Dormakaba keypad and electronic access control hardware, browse our keypad and prox locks catalog.

When You Need the 401143

The 401143 is ordered in three situations. First, when a tailpiece from the original E-Plex lock is lost or damaged during installation or service and a direct replacement is needed. Second, when an E-Plex lock is being retrofitted with a different standard conventional cylinder that requires a different tailpiece length or configuration than the one currently installed. Third, when multiple E-Plex locks on a project need standardized tailpiece inventory for field maintenance and the originals have been depleted.

This part is not for interchangeable core (IC) applications. For Schlage LFIC (Large Format Interchangeable Core) compatibility on E-Plex locks, the correct part is a different tailpiece assembly. For BEST/Falcon SFIC compatibility, similarly a different tailpiece is required. Confirm the cylinder format before ordering.

Dormakaba 401143 Specifications

Part number: 401143. Product type: E-Plex Tailpiece Kit. Cylinder compatibility: Standard conventional cylinder (Std Cyl). Not for IC (interchangeable core) cylinders. Compatible lock series: Dormakaba E-Plex 2000 Series, E-Plex 3000 Series, E-Plex 5000 Series. Also known as: Kaba 401143, dormakaba E-Plex 401143.

The Dormakaba E-Plex Series Context

The Dormakaba E-Plex is the standalone electronic access control lever lock line from dormakaba, combining a mechanical lever lockset with keypad or card-based access control. The E-Plex 2000 Series provides exterior PIN access with free egress. The E-Plex 3000 Series adds 300 access codes and 9,000 audit events. The E-Plex 5000 Series is the commercial-grade version with network connectivity options and the largest code capacity. All three series use conventional mortise cylinder key override as a mechanical backup, which is what makes the tailpiece a critical component: it's the mechanical interface between the backup cylinder and the lock mechanism.

When ordering or maintaining E-Plex hardware, having replacement tailpieces in the service kit is standard practice. Access control installers and facilities managers who service E-Plex installations on a recurring basis typically keep the 401143 stocked as a standard service part.

For other Dormakaba E-Plex and Simplex replacement parts and accessories, browse our electronic hardware catalog or call 877-471-4870 for specific part identification assistance.