Furnace Blower Motor 1/2 HP 115v Replaces GE Genteq 5KCP39NGY835 5KCP39NGY835S. This is a Brand New Aftermarket Replacement 4-Speed Furnace Blower Motor. It is 1/2 HP, 115 Volt, 1075 RPM, reversible rotation and has three mounting ears welded to the body. The shaft is 1/2″ by 6″ long. It is designed to replace the GE Genteq part numbers listed below. An electric motor converts electrical energy into mechanical energy. In an HVAC system, motors typically turn the air conditioning fan blade and the furnace blower motor. Newer high efficient motors, such as X13 and ECM motors, have “end caps” that control the motor speeds. These can be removed and replaced separately. Replaces Old Part #s. Partial List of Units that Use This Item. Hit Ctrl + F and enter your model number for a quick search!