Lennox 93M09 Crankcase Heater Els PW 17895 Note that the 325-3-1/2 is

Note that the 325-3-1/2 is technically identical to the 325-3-44

It maintains the same thread pitch and drill size specifications to provide a drop-in fit for older manifolds using the legacy part number

Relying on this authentic Johnson Controls HVAC part ensures the duty cycle matches the original system engineering for long-term reliability

there is no difference in performance or mounting

Lennox 93M09 Crankcase Heater Els PW 17895 Note that the 325-3-1/2 isThe Lennox 93M09 Crankcase Heater is a critical OEM component designed to maintain optimal compressor lubrication in high voltage industrial HVACR applications. This belt type heater operates at 480 Volts and delivers 90 Watts of consistent thermal energy to the compressor housing. Engineered for versatility, it features an adjustable diameter range of 9 1 4" to 11", ensuring a snug, high contact fit for various scroll and reciprocating compressors.