Home / HVAC / Air Conditioner Condensing Unit Fan Motor 51-21854-17 Air Conditioner Condensing Unit Fan Motor 51-21854-17$347.35 Price may not be up-to-date. In Stock View Product Part Number: 51-21854-17 Brand: RHEEM MFG CO AIR COND DIV Seller: Sears PartsDirect Category: HVAC 60-day return policy Description Air Conditioner Condensing Unit Fan Motor