25116752
Windshield Wiper Switch
Mack

The windshield wiper switch provides the operator with control over wiper operation, including intermittent, low, and high-speed settings, as well as park functionality in many models. This switch is designed to endure the rigors of a truck cab environment—vibration, temperature extremes, and exposure to moisture and dust—while delivering dependable signaling to the wiper motor. Compatibility with multi-pin harnesses and weather-resistant seals helps ensure consistent performance across the life of the vehicle. Proper function of the switch translates directly to visibility in adverse conditions, reducing the risk of obscure vision during rain or snow. Maintenance considerations include ensuring correct wiring, clean engagement of switch contacts, and periodic inspection for corrosion. When replacement is necessary, selecting a unit that matches the original wiring layout and connector geometry minimizes install time and reduces the chance of miswiring. Source One Parts Center.