ClimaTek Furnace Blower Motor 3/4 HP 1075 RPM 115V 3 SPD Fits ClimaTek MOT99-910. This is a new ClimaTek Furnace Blower Motor 3/4 HP 1075 RPM 115V 3 SPD It replaces the 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!