Description
Ever wonder how your John Deere’s computer knows exactly how fast that PTO shaft is spinning? That little metal ring with teeth around your rear PTO shaft is called a tone wheel, and it’s what makes all those electronic PTO functions work properly. When this critical piece gets damaged or wears out, your PTO-driven implements aren’t performing right or your monitor shows erratic readings.
What You’re Getting
- Precision-machined tone wheel that works with your tractor’s speed sensor
- Proper positioning relative to the sensor for accurate readings
- Built to handle the constant rotation and vibration of PTO operation
- Direct replacement that restores electronic PTO monitoring
Built for Real Farm Work
This tone wheel fits the heart of John Deere’s workhorse lineup—from the versatile 6000 and 6010 series utility tractors through the powerful 7030 series row-crop machines. Whether you’re running a manure spreader, operating a hay baler, or powering any implement that needs consistent PTO speed, this sensor is what tells your tractor’s computer exactly how fast that shaft is spinning, enabling features like automatic PTO management, implement protection, and precision application rates.
Made to Last
This tone wheel is manufactured to withstand the demanding environment around your PTO shaft. The precision teeth are cut to exact specifications so your speed sensor can read them accurately, and the construction handles the heat, vibration, and occasional debris that comes with farm work. If readings are erratic, check sensor gap and tone ring condition—a worn tone wheel causes just as many problems as a bad sensor.
Good to Know
Installation requires removing the PTO shaft, so it’s a good time to inspect your PTO clutch and related components. This sensor is crucial for precision farming operations where application rates depend on accurate ground and shaft speeds. Make sure the tone wheel is clean and properly positioned when you reinstall everything—the sensor gap is critical for reliable operation.






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