Caliso 22332 Electro-Viscous Fan Clutch

The Caliso 22332 is a direct-replacement electro-viscous fan clutch engineered to restore proper engine cooling performance. Unlike traditional thermostatic fan clutches that rely on a bimetallic coil, this electro-viscous design uses an electronically controlled electromagnetic system that communicates directly with the vehicle's PCM/ECU to modulate fan speed on demand.

The clutch uses a viscous fluid coupling to engage and disengage the cooling fan. When the engine control module detects elevated coolant temperatures or increased cooling demand, it signals the clutch electromagnet to engage, thickening the internal viscous fluid and driving the fan to pull air through the radiator. At lower operating temperatures, the fan disengages to reduce parasitic engine load and improve fuel efficiency.

Key Features:

• Electro-viscous design for precise, ECU-controlled fan speed modulation
• Replaces worn or failed OE-style electro-viscous fan clutches
• Helps maintain optimal engine coolant temperature under varying load conditions
• Reduces unnecessary fan engagement at low temperatures to improve fuel economy
• Built to meet or exceed original equipment performance specifications
• General application coverage and clutch specifications included on label

The Caliso 22332 electro-viscous fan clutch is a reliable aftermarket solution for restoring factory-correct cooling fan operation, making it a straightforward replacement for vehicles experiencing overheating, fan noise, or fan clutch failure codes.