Fitment 1999-2004 Chevrolet Tracker 1999-2005 Suzuki Grand Vitara 1996-1998 Suzuki Sidekick 1999-2004 Suzuki Vitara 2002-2003 Suzuki XL-7 What is a Fan Clutch? The clutch fan is equipped with a fan clutch between the pulley and the fan blade hub, and the working state of the fan is adjusted through the separation and engagement of the clutch. This not only ensures the normal operating temperature of the engine, but also reduces the power loss of the engine and reduces fuel consumption. How to Detect a Faulty Fan Clutch? .