Description
When you’re out in the field running implements like balers, mowers, or spreaders, accurate PTO speed monitoring isn’t just nice to have—it’s essential for protecting expensive equipment and getting the job done right. This 40mm magnetic sensor keeps your tractor’s computer informed about exactly what your PTO shaft is doing, enabling all those automated features that make modern farming efficient.
Key Features
- Precise magnetic sensing that works reliably even when covered in dust and debris from field operations
- Weather-sealed construction designed to handle the harsh environment near your PTO shaft
- Proper 40mm length ensures correct positioning relative to the tone wheel for accurate readings
- Direct replacement—no modifications needed to get your speed monitoring system working again
Built for Real Farm Work
This sensor fits a wide range of modern tractors including Massey Ferguson 6600, 7400, 7600, 7700, 8400, and 8600 series, plus numerous Fendt Vario series from the compact 200s up through the big 1000 series. Whether you’re running a utility tractor on a dairy operation or pulling implements with a high-horsepower row-crop machine, this sensor handles the precision monitoring these sophisticated tractors depend on.
Made to Last
Mounted close to the PTO shaft, this sensor deals with vibration, temperature swings, oil mist, and whatever else your tractor throws at it. The magnetic sensing design has no moving parts to wear out, and the sealed construction keeps moisture and contaminants from affecting the electronics inside.
Installation Notes
The sensor threads into the existing mount and connects to your tractor’s wiring harness. Make sure to clean the tone wheel and check the air gap—proper spacing is critical for accurate speed readings. After installation, cycle the PTO at different speeds to verify your display shows steady, accurate RPM readings.






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