FOR PARTS ONLY- NOT TESTED The Boeing Aircraft Air Condition Relay Unit is a genuine part manufactured by Boeing in the United States. It is specifically designed for use in aircraft and includes a Leach Relay for added functionality. This high-quality avionics component is not a custom bundle or modified item, making it a reliable and trustworthy choice for aircraft maintenance and repair. The manufacturer part number 65-52810-19 ensures compatibility and authenticity in the aviation industry.