AFI 1000 heavy duty waterproof wiper motors with your choice of 1.5 or 2.5 inch shaft and 80 or 110 degree pre-set wiper sweep. The AFI wiper housings are made from UV stabilized high-temperature, high-impact thermoplastics. The wiper runs on a 12 Volt heavy-duty motor with an anti-rotation drive shaft. The drive shaft is knurled and the arm drive nut is made of solid brass. Features adjustable right or left self parking.