Husqvarna 532175820 Flat Idler Pulley For Husqvarna/Poulan/Roper/Craftsman/Weed Eater OD 4-1/2-inch, Flat OD 4-3/4-inch, Flat width 5/8-inch Current part number 532175820 replaces previous part numbers 175820 and 11633. Replacement part for many brands including Husqvarna, Poulan, Poulan Pro, Roper, Sears/Craftsman, and Weed Eater Original equipment manufacturer replacement part 1-year warranty for defects in material or workmanship