APDTY 711021 4-Wheel Drive 4WD 4x4 Shift Encoder Actuator Motor Fits Select Chevy GMC or Dodge Trucks w/NVG 136 236 246 Transfer Case (w/ NP8 RPO Code; Replaces 19125640 88962314 12384980 12584314) Specifically Designed For Models Listed With NVG 136 236 or 246 Electronic Shift Transfer Case NVG 136 246 or 246 Transfer Case Identified by RPO Code NP8 on General Motors Applications Also Fits 2006-2010 Dodge Ram 1500 Pickup w/ NVG 246 Transfer Case Also Identified By 1 Single Electrical Wire Harness w/ Rectangular Connector With 7 Pins & 8 Slots Replaces General Motors 19125640, 88962314 or Mopar 05170543AA 5170543AA