Tractor Radiators & Ag Radiators | American Radiator American Radiator has heavy duty tractor radiators for your ag equipment. Our wide selection includes ag radiators for all major industry brands. Case 580E Backhoe Parts | HW Part Store Affordable Quality Aftermarket Replacement Parts for Case 580E Construction Backhoe Loader. Including Hydraulic Cylinders, Seal Kits, Cylinder Parts, Pumps, Pins, Bushings, Links, and Stabilizer Parts. Full list of Case Backhoe Models.