Hex Autoparts 6X STEPPER MOTOR FOR FORD MUSTANG 2005 2006 2007 05 06 07 SPEEDOMETER X25.589 1 Set of 6 Qty. Stepper Motor. A direct replacement for the X25.589 commonly found in 2005-2007 Ford Mustang Motors instrument clusters. The stepper motor is a patented stepping motor design, which has a 4 gears design construction in order to guarantee high efficiency, high position accuracy and a robust gear system. The unique gear shape design reduces friction and noise. A special material is used for each component to increase liability & safety.