Newmar RV J-Hook Wiper Arm 30", 25 Degree Bend 011617Newmar RV motorhome J Hook wiper arm, radial. Wiper Technologies brand. Actual length is 29. 53 inches. 25 degree 25 bend. Wiper plastic black cap included. Used in many makes and models of motorhomes Recreational Vehicles RVs. Manufactured by Wiper Technologies. Newmar number 011617. 1 The plastic wiper radial arm cover is included with the wiper arm. If you need a replacement cap, they are also sold separately: Newmar RV Plastic Cover for Radial Arm