SOURCE1 S1-02427651000 F48K74A48 240VAC 1/3HP 1050 RPM Furnace Blower Motor -NEW. This listing is for a NEW Open Box. SOURCE-1 S1-02427651000 F48K74A48 240VAC 1/3HP 1050 RPM Furnace Blower Motor. See listing images of actual item, condition and included contents. Listing and template services provided by inkFrog.