Viscous Fan Clutch Assembly for Ford 40 Series and New Holland TS Series Tractors

Description

When your tractor starts running hot or you hear that fan roaring constantly even in cool weather, it’s time to look at the viscous fan clutch. This smart little component is the brain of your cooling system, automatically engaging the fan when you need cooling and freeing up horsepower when you don’t. A failed clutch either wastes fuel by running the fan full-time or risks expensive engine damage by not cooling when it should.

What You’re Getting

• Temperature-sensitive viscous coupling that engages automatically as heat rises
• Saves 10-15 horsepower during normal operation compared to a locked fan
• Reduces fuel consumption and cab noise when maximum cooling isn’t needed
• Heavy-duty sealed construction prevents contamination and maintains calibration
• Direct replacement design fits like the original equipment

Built for Real Farm Work

This clutch fits Ford 40 Series tractors from the 5640 through 8340 and New Holland TS Series models TS90 through TS115. These are serious workhorses used for everything from loader work and cultivation to heavy tillage and transport. Whether you’re baling hay in August heat or running a planter in cool spring conditions, this clutch adjusts cooling to match what your engine actually needs.

Made to Last

Inside this clutch is precisely calibrated silicone fluid that responds predictably to temperature changes throughout its service life. The sealed construction keeps contamination out and maintains the exact viscosity needed for proper operation. Quality bearings handle the constant speed variations while heavy-duty seals prevent the fluid loss that would render the clutch useless.

Good to Know

Handle this clutch carefully during installation – never store it on its side or upside down, as the internal fluid can migrate and affect operation. The clutch should spin freely when cold but show increasing resistance as it warms up. If you’re replacing due to overheating issues, check your radiator for blockage and inspect the fan blades for damage while you’ve got things apart.