The wiper motor purpose is to provide electric power for the back and forth motion of the wipers. The wipers are a combination of electric motors and worm gear. A neat linkage converts the rotational output of the motor into the back and forth motion of the wipers. The mechanism behind the wipers is the windshield wiper motor, which provides the power the wipers need. A wiper motor is the main gear which is responsible for the function of wiper mechanism. Connected to the motor are linkage and worm gears which perform the back and forth motion. Wiper Motor Only Will be inspected before shipping Wiper arm Wiper blade Wiring harness