050-03378-0000 – Bendix King Installation Kit for KX 155A NAV/COMM
Available now on the Airparts.aero Marketplace.
Overview
The Bendix King 050-03378-0000 is the complete, genuine Original Equipment Manufacturer (OEM) installation kit required for the proper panel-mounting and electrical integration of the venerable KX 155A NAV/COMM transceiver. This is not the radio unit itself, but rather the essential collection of certified hardware that forms the structural and electrical interface between the radio and the airframe. Using the OEM kit is the only way to ensure a secure, reliable, and airworthy installation that meets the original certification standards of the avionics unit.
This kit provides all the necessary components, from the mounting rack that is installed in the avionics stack to the specific electrical and coaxial connectors required to interface with the aircraft's systems. For any avionics technician performing a new installation of a KX 155A or replacing a damaged mounting assembly, this kit is the complete, factory-specified solution.
Key Features
Complete Installation Solution: Provides all the necessary structural and electrical hardware for a new KX 155A installation in a single, factory-kitted part number.
OEM Certified Hardware: Every component in the kit, from the mounting tray to the individual connector pins, is a genuine Bendix King part, guaranteeing correct fit, form, and function.
Includes Mounting Tray and Backplate: The core of the kit is the precision-formed mounting rack and rear connector backplate, which ensure the radio is securely retained and properly aligned with its connector.
Provides All Required Connectors: The kit includes the main 44-pin D-sub connector, a full set of mil-spec crimp contacts, and the necessary BNC coaxial connectors for both the navigation and communication antenna leads.
Ensures Airworthy Installation: Use of this kit is essential for compliance with the KX 155A's TSO and STC installation requirements.
Technical Specifications
Part Number: 050-03378-0000
Component Type: Avionics Installation Kit
OEM Manufacturer: Honeywell Bendix King
For Use With: Bendix King KX 155A NAV/COMM Transceiver (all variants)
Kit Contents (Typical):
Mounting Tray / Rack
Rear Connector Plate
44-Pin D-Subminiature Connector & Crimp Contacts
BNC Coaxial Connectors (for NAV & COMM antennas)
Complete Hardware Kit (screws, clamps, etc.)
Governing Specification: Bendix King Installation Manual for the KX 155A Series.
Aircraft Compatibility
This installation kit is not specific to a particular aircraft model but is required for the installation of a Bendix King KX 155A in any aircraft. The KX 155A is a common NAV/COMM radio found in a vast range of general aviation aircraft, including models from:
Textron Aviation (Cessna, Beechcraft)
Piper
Mooney
Cirrus
And many other OEMs.
Note: This kit is for the KX 155A NAV/COMM. The specific aircraft must have an appropriate STC or other approval basis for the installation of the radio itself.
Applications
Performing a new, first-time installation of a Bendix King KX 155A NAV/COMM radio.
Replacing a damaged or unserviceable mounting rack, backplate, or connector assembly for an existing KX 155A.
Why Choose 050-03378-0000?
An avionics installation is only as reliable as its physical and electrical foundation. Using the official Bendix King 050-03378-0000 kit is the only way to guarantee a safe and airworthy installation. The mounting tray is engineered to correctly support the radio against g-forces and vibration, the backplate ensures perfect "blind mating" of the connector, and the included mil-spec connector pins are essential for creating reliable, low-resistance connections. Fabricating a mount or using non-certified connectors can lead to intermittent avionics issues, poor radio performance, and a non-compliant, unairworthy installation.
The design of an avionics installation kit like the 050-03378-0000 is centered on the principle of the Line Replaceable Unit (LRU) and the blind-mate backplane connector. The mounting tray is more than a simple bracket; it is a precision guide that ensures the avionics unit (the LRU) is perfectly aligned with the fixed rear connector plate as it is inserted. This system allows all electrical, RF, and data connections to be made reliably and automatically as the unit is pushed and locked into place, without the need for manual connection of wires at the rear of the unit. The tray also provides a critical chassis ground path for the radio and often serves as a plenum for forced-air cooling that is ducted into the back of the avionics stack. This integrated system approach is fundamental to creating a modular, serviceable, and reliable avionics installation.
Note: This is a kit of parts for the installation of a flight-critical NAV/COMM radio. The installation, including the assembly of the rack, routing of wiring, and high-reliability crimping of connector pins, must be performed by a certified and qualified avionics technician in strict accordance with the official Bendix King installation manual and FAA standard practices (e.g., AC 43.13-1B and AC 43.13-2B).
Documentation
All technical data and installation procedures are proprietary to Honeywell Bendix King and are contained within the official Installation Manual for the KX 155A NAV/COMM radio. This manual must be used for any installation.