Lennox 39M83 Transformer 321042-401 verify the bulb dimensions and

verify the bulb dimensions and mounting bracket compatibility before field substitution

the J996MDA-2 is technically identical to the J996MDA-2H

This technical HVAC component is essential for maintaining system efficiency in aging units or installations with long refrigerant linesets where the compressor often struggles to balance pressures during the startup cycle

Industrial Hub Design: The 1/2" bore includes a set screw designed to bite securely into the motor shaft

Universal Compatibility: Supports a wide range of industry-standard sensors inclusive of Pt1000

Lennox 39M83 Transformer 321042-401 verify the bulb dimensions andThe Lennox 39M83 Transformer is a critical OEM HVAC replacement part engineered for high stability voltage regulation in residential and commercial furnaces and air handlers. This 120V to 24V step down transformer features a 120V primary input and a 24V secondary output, providing a consistent 40VA rating for low voltage control circuits. Unlike universal alternatives, the 39M83 is designed to meet strict factory tolerances, ensuring seamless