1956 John Deere 520 Tractor Serial 5201135 Nicely restored tractor, runs and operates as it should! Pieces original to tractor, fuel tank cleaned and lined. Classic green and yellow horsepower that never goes out of style! This nicely restored 1956 John Deere 520 Tractor that runs and operates as it should. Features original components and a fuel tank that has been cleaned and lined. A sharp, well-kept example of a classic John Deere that's equally at home in a collection, parade, tractor show, or light-duty farm work!