Temperature-Controlled Viscous Fan Clutch for John Deere 7610/7710/7810 Series High-Horsepower Tract SKU: QT58501

When your viscous fan clutch fails, you'll notice the problem immediately—either your fan roars constantly at full speed, robbing 10-15 horsepower and burning extra fuel, or it won't engage when needed, causing dangerous overheating during heavy work. This replacement clutch restores intelligent cooling control, automatically engaging the fan based on temperature to optimize both engine protection and fuel efficiency.

Why This Clutch Matters

• Temperature-sensitive silicone fluid automatically adjusts fan engagement as heat rises, providing exactly the cooling needed
• Saves 5-15 horsepower during normal operation compared to a locked fan, returning power to your drawbar
• Precision-machined housing and heavy-duty bearings handle constant speed variations and high rotational forces
• Quality seals prevent fluid loss that would render the clutch inoperative, maintaining calibration for the unit's service life

Handle with care during installation—never store the unit on its side or upside down, as this can cause fluid migration that affects performance. Full engagement typically occurs around 200°F coolant temperature. For over 55 years, S&H Parts has helped customers identify the right cooling system components for demanding agricultural applications.