Toro 22324D USED Dingo TX 525 Wide Track. The Dingo TX 525 delivers durability and reliability pros and Do-ItYourselvers trust, combined with powerful performance and incredible versatility. For operators who are frequently switching tasks or moving things out of the way, these walkbehind models provide greater productivity due to the ability to walk up to the machine and go. In addition, with walk-behind Dingos, operators don't feel the bumps when going over rough terrain.