Husqvarna 123713X Torsion Spring For Husqvarna/Poulan/Roper/Craftsman/Weed Eater
Husqvarna, Poulan, Poulan Pro, Roper, Sears/Craftsman, and Weed Eater 123713X Torsion Spring.  Current part number 123713X replaces previous part numbers 106734, 149287, 532106734, 532123713 and 532149287.