Thermal Controlled Viscous Fan Clutch for Agricultural Equipment SKU: QT63316

A failed viscous fan clutch creates two equally damaging scenarios: constant fan operation that wastes fuel and steals horsepower, or complete failure to engage that leads to costly engine overheating. This thermal controlled replacement uses precisely calibrated temperature-sensitive silicone fluid that automatically adjusts fan engagement - thin when cold to minimize power draw, thickening progressively as temperatures rise to deliver exactly the cooling needed.

Why Proper Cooling Control Matters

• Saves 5-15 horsepower during normal operation compared to a locked fan, returning power to your PTO and drawbar when you need it most
• Reduces fuel consumption, lowers cab noise levels, and extends belt life through intelligent operation
• Hermetically sealed construction maintains precise calibration throughout service life with no adjustment required
• Precision-machined housing and heavy-duty bearings handle constant speed variations and high rotational forces

When properly installed, the clutch spins freely when cold but shows increasing resistance as engine temperature rises. Full engagement typically occurs around 200°F coolant temperature. For proper fitment guidance on your specific equipment, S&H Parts' experienced team can help ensure you get the right cooling solution.