WWF motors are commonly found on a wide variety of trucks, equipment, tractors, boats, buses, and much more for nearly 40 years. WWF motors are a self-contained wiper system with an oscillating 1/2" drum pivot shaft. Wipe angles are easily adjustable as well as an adjustable park position from right-to-left. Default wipe angles for each motor is 110 degrees. The wiper switch can be easily installed directly to each motor, if necessary.4R1.12-19S2 Wiper Motor CompatibilitiesWWF CrossWWF12C19-1010WWF12C19-210WWF12C19-710WWF12C19-510WWF12C19-910Schmitt & Ongaro Cross41533