This viscous fan clutch automatically varies fan blade speed in response to engine temperature, ensuring the cooling system delivers airflow when needed and reduces drag when not. A faulty clutch can lead to poor cooling or wasted power.
Constructed as a sealed fluid coupling with a bimetallic control element, it’s designed to operate reliably under engine bay heat, vibration, and variable workloads. It reduces parasitic load in cooler conditions and steps in when the engine demands more cooling.
- Thermostatic viscous coupling for engine cooling fans
- Automatic engagement based on engine temperature
- Reduces load on engine at lower temperatures
- Sealed housing to resist leaks and contamination
Installation Tip: When installing, align the clutch carefully with the water pump or drive hub to avoid misalignment. Use proper torque, reattach the fan blades exactly as before, and test the clutch by holding the engine at high temperature to verify engagement.
A dependable replacement clutched fan drive designed to balance cooling performance and engine efficiency under varied operating conditions.