Kovatch Mobile Equipment Corp. (Kovatch) is recalling certain model year 2012-2013 Predator, Predator SS, Panther, and model year 2011 Panther II emergency vehicles manufactured February 1, 2011, through February 28, 2013. These vehicles are equipped with Meritor axle assemblies that were built with disc brakes using MGM J24 series air brake chambers. In the affected axles, the brake chambers may leak pressure allowing the parking brake to drag when it is supposed to be released. Brake dragging could lead to overheated brake components.