Thinking about an upgrade for your SCAN truck's cooling system? In this video, we demonstrate the AOWO viscous fan clutch replacement for SCAN 4 Series trucks. Watch as we explain how this bimetallic temperature-controlled unit maintains optimal engine temperature, prevents overheating during heavy hauling, and improves fuel efficiency. See the direct bolt-on installation process and learn about its durable steel and aluminum construction designed for long-distance transport applications.