John Deere has made plenty of big machinery in the past, but this one is the green-and-yellow’s largest ever. It’s called the 9RX 830, and thanks to its 18-liter turbodiesel engine, it’s also the most ...

John Deere’s new 9RX 830 is the biggest, most powerful and most expensive tractor ever to go into series production. In pure horsepower terms, it can be bettered only by the 1,100hp custom-built Big ...

WATERLOO/CEDAR FALLS, Iowa (KWWL) -- John Deere will debut it's largest and most horse powered tractor this year, straight from the Cedar Valley. The 9RX830 has 830 horsepower, and will be ...

This John Deere 830 diesel, which belonged to a Littlestown, Pa., collector, sold for $15,500 on Oct. 4. The online auction also featured more than 20 other John Deere tractors, a few Farmall and ...

John Deere has unveiled what it labels the most powerful tractor ever at the Commodity Classic in Houston, Texas, at the launch of the all new 9RX Series Tractor lineup, including three new ...

What happens when you get a new tractor? This video takes you inside the new John Deere 830, showing you its first test in the field and how it performs under pressure. Arnold Schwarzenegger shares ...

John Deere has launched its most powerful tractor yet, cranking the output of its flagship 9RX artic up to a heady 913hp. The performance boost has been made possible by upsizing to an 18-litre engine ...

The 20 series of John Deere tractors began with the introduction of the 420 Model in 1955. The next year the 320, 420, 520, 620 and the 720 came along and in 1957 along came the 820. The most common ...