Utilizing genuine Weil-McLain burner parts ensures that the equipment operates within original factory parameters for long-term reliability in demanding hydronic applications

Remote Integration: Includes dedicated terminals for remote annunciator (RA100Z) integration to provide localized status indication

Constructed from galvanized steel with a low-leakage gasket design

often caused by a blocked air filter

Key Benefits: Exact OEM Compatibility: Verified as the direct replacement for the HK05YZ002

Lennox 45H98 Crankcase Heater 320788-703 Utilizing genuine Weil-McLain burner partsThe Lennox 45H98 Crankcase Heater is a critical OEM replacement part designed to maintain optimal oil viscosity within the compressor sump during off cycles. By providing consistent thermostatic heat, this 120V 240V compatible heater prevents refrigerant migration and condensation, which are leading causes of slugging and mechanical failure at startup. This wrap around style heater is specifically engineered for a high tolerance fit on various Lennox