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This genuine furnace limit switch replaces legacy part number HH11AZ120
ensuring exact electrical and mechanical fit without modifications
one-piece construction requires no grease or lubrication for the life of the part
Its versatile design compatibility with 1"
This Trane OEM replacement motor features a reversible rotation configuration and utilizes a permanent split capacitor (PSC) design
Fasco D143 Motor 321042-401 This genuine furnace limit switchThe Fasco D143 Motor is an industry standard shaded pole ventilator motor designed for high performance air over applications, including unit heaters, rooftop ventilators, and exhaust systems. Built with a 5 inch diameter 42 frame, this versatile unit delivers a dual rated output of 1 30 1 40 HP, allowing technicians to match specific torque requirements for Siegler, Williams, or Sears wall furnaces. Operating on 115V single phase power, the motor