MARS 10466 Furnace Blower Motor 3/4HP 1075RPM 1PH 115V 4SPD Y7L623F56S. Used in Excellent Working Condition. MARS 10466 Furnace Blower Motor 3/4HP 1075RPM 1PH 115V 4SPD Y7L623F56S? EChecks must clear before item(s) are released. Tracking information will be available upon request. We do our best to ensure the accuracy of every listings. Unfortunately, do to our high volume, mistakes sometimes occur. Get images that make Supersized seem small. Showcase your items with Auctiva’s. Track Page Views With.