Pro Stocks (in ATPA trim) are allowed a 680ci limit, a single turbo, diesel fuel only, no intercoolers, and the engine can be moved to better balance the tractor.

Mercedes-Benz OM 656 I6 Turbo Diesel Let's start the list with the Mercedes-Benz OM 656. This is a 2.9-liter inline six that has two variants. The 350 d variant outputs 286 horsepower while the ...

As diesel sled pulling trucks became more popular, the public's interest in them began to grow. In 2004, Dave Radzierez gave them what they wanted-the first center-drive Pro-Modified truck with a ...

For others, tractor pulling brings back memories of the McLeod County Fair. It was a major draw for many years. It was brought back to the Grandstand in 2015.