Proflow Power Steering Pump, Cast Iron Power Steering Pump With Mounted Aluminium Tank, 6" Aluminium V-Belt Pulley, Each - PFEPS6004Part Number: PFEPS6004 These cast iron bolt on power steering pumps come with an aluminium reservoir tank and feature sealed bearings for optimum efficiency. It uses a splined shaft with a bolt on pulley and it can also be tuned with replaceable flow valves to alter steering response. AN6 pump outlet. AN6 return back into tank. Also available with serpentine pulley : PFEPS6002