APDTY 711012 Transfer Case Four Wheel Drive Actuator aka 4WD 4x4 Transfer Case Encoder Shift Motor (Replaces GM 12474401, Isuzu 8124744010) Specifically Designed For The Models Listed With New Venture Gear 136 236 or 246 Transfer Case Identified By General Motors RPO Code NP8 See Description For As Easy Way To Identify Your RPO Code Also Identified By 2 Wiring Connections, 1 6-Wire Fixed Plug, 1 4-Wire Wiring Harness Conenctor Replaces General Motors 12474401, 8124744010 Actuator Encoder Motor