Description
If you’ve got a Massey Ferguson with a SISU engine and you’re hearing that fan roaring constantly, you know something’s not right. A locked fan constantly consumes 15-20 horsepower, even during cold morning starts or light work. That’s power you could be putting to your PTO or drawbar instead. SISU engines demand specific cooling management, and this viscous fan clutch delivers exactly what these Finnish powerplants need. Automatically adjusting fan speed based on temperature, it optimizes cooling while reducing fuel consumption and noise.
What You’re Getting
- Engineered specifically for SISU’s operating characteristics, engagement temperatures, and airflow needs – no generic parts here
- Disengages when cooling isn’t needed, returning that power to your PTO or drawbar for real work
- Reduces fuel consumption, lower noise levels, and extended belt life – savings that add up over thousands of hours
- Temperature-sensitive operation means the fan only works as hard as it needs to
Built for Real Farm Work
The SISU engines in these high-horsepower Massey Ferguson models have unique cooling requirements. Whether you’re running your 6465 through a long hay day or pushing your 7480 hard during harvest, these tractors generate serious heat that needs smart management. Using generic clutches risks inadequate cooling or excessive fan operation – neither acceptable when you’re pushing these powerful tractors hard.
Made to Last
This isn’t some universal part trying to do everything – it’s built specifically for SISU engines and their operating conditions. The sealed construction keeps the temperature-sensitive fluid working properly through years of heat cycles, vibration, and the tough conditions these big tractors see every day.
Installation Notes
Listen for smooth, progressive engagement as temperature rises – jerky operation indicates problems. If your fan runs full speed constantly, the clutch has failed in the engaged position. When replacing, ensure compatibility with your specific SISU engine variant. Handle the unit carefully during installation – these precision parts don’t like being dropped or stored on their side.
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