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Bard part number 8605-013 is an OEM crankcase heater wraparound rated for 460V, designed to keep the compressor crankcase warm during off cycles to help reduce refrigerant migration and oil dilution on start up. This heater straps around the compressor shell and is used on select Bard wall mount and packaged units where proper crankcase temperature control is required for reliable compressor protection, especially during cooler ambient conditions or extended shutdown periods. When replacing, verify your unit model and compressor application in the Bard parts list, confirm the 460V requirement, and route the lead wires the same way as the factory install to avoid vibration wear or contact with hot components.