OEM AAM 2002 - 2009 GM Disconnect Actuator Motor 

Part # GM12471631 

Alternate Part # 600-103 & 46003022 

Fitment: 02-09 Chevy Trailblazer, 02-09 GMC Envoy and 04-07Buick Rainier with selective 4x4 / np8 option code