The Hörmann D436255 Center Rail Support Bracket is a genuine OEM replacement part designed to stabilize the middle section of a Hörmann garage door opener rail. By providing a secure mid-span attachment point to structural framing, it helps maintain rail alignment, reduce vibration, and ensure smooth trolley travel during open/close cycles. This component is ideal for new installs or as a replacement when an existing hanger is worn or missing, supporting reliable operation in residential or light commercial sectional door applications.
The D436255 is intended for use with select Hörmann opener rail assemblies that specify this exact part number; always verify compatibility against your opener’s parts diagram or installation manual. Installation typically involves fastening the bracket between the rail and a solid mounting surface per Hörmann guidelines. For safety, disconnect power to the operator, support the rail before loosening any fasteners, and confirm proper rail alignment after mounting. Common search terms include Hormann D436255, center rail support, garage door opener bracket, OEM replacement, and Hörmann rail hanger for opener track.