View 3 Photos View 0 Videos Allison WPB13 Transmission Shifter for a 2004 Sterling ACTERRA Newly Listed Contact for price (Used) 2004 Sterling ACTERRA, AUTOMATIC SHIFTER AASYS- Part Number: 29538360, Serial Number: 0451311, Model No. WBP13, E11, 10R-020911, For more information about this item, give us a call.... ConditionUsedEngine ModelCaterpillar 3126/CFEFits To Make(s)SterlingFits To Model(s)ACTERRAWill Fit Year(s)2004Stock NumberP-501045 MLS Number14731185CategoryTransmission Shifters (Electronic Controller) Last Updated11/6/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info