Wabash National’s Aviation and Truck Equipment business, which manages the Progress Tank and TST brands of truck-mounted tanks, named Michael Warkentien vice president and general manager, Aviation and Truck Equipment. Wabash also named Nancy Rudolph engineering manager; Wayne Terpstra director of sales, Progress Tank and TST; Matt Decker sales manager, Progress Tank and TST; Steve Thorn sales manager, Progress Tank; and Dan Pederson sales associate, Progress Tank and TST.