Suitable for Baodian, Qingling Pickup Wiper Push Rod Ball Head L 8-90001121
8-90001121
The working principle of the wiper push rod ball joint is quite ingenious. It acts like a flexible "joint," allowing the wiper arm to smoothly follow the curvature of the windshield, converting the motor's rotational motion into the left-right sweeping motion of the wiper blade. If the ball joint wears out, the wiper may chatter, produce noise, or fail to clean effectively.