Application Notes: Engine: 5.9LL L6;. Part Type: Vacuum Pump. Vacuum Pump Connector: Barbed. Vacuum Pump Drive System: Gear Drive. Vacuum Pump Inlet: 3/8 IN / 1/2 IN / 5/8 IN / 3/4 IN / 1 IN. Vacuum Pump Outlet: 3/8 IN / 1/2 IN / 5/8 IN / 3/4 IN / 1 IN.
