Solenoid Block. This is the Updated Design ! Replaces 9L2Z-7G234-AA, 9L2Z-7G391-AA. This Fits Ford / Lincoln / Mercury SUV's with 5R55W or 5R55S Automatic Transmissions 2002 And Up Models. This fits all the below Transmission models: Aviator 4.6L , 2003 to 2006. Explorer 4.0L / 4.6L , 02 Up. Sport Trac 4.0L / 4.6L , 02 Up. Mountaineer 4.0L / 4.6L , 02 Up. Everest 3.0L , 2004 to 2010. Falcon FG 4.0L / 5.4L , 2008 to 2010. Mustang 4.0 / 4.6L , 2005 to 2010. Lincoln LS 3.0L / 3.9L , 2003 to 2006. Replacement of this solenoids assembly will cure nearly all electrical shift related problems. This is suggested replacement on all rebuilds.