The Airsource 12V LPM Module Blower Resistor is designed to reduce electromagnetic interference and noise in the circuit while also preventing voltage spikes and drops that can damage sensitive components in the system. This 3-pin, 4-spade module is designed for Navistar trucks and is easy to install. With its durable construction and reliable performance, it is the perfect choice for keeping your vehicle running smoothly. FleetPride is your First Click in Heavy Duty®.