KRC Pro Series III Power Steering Pump 5.9CC W/ 17 Spline & Threaded Shaft for Pulley. Pulley Sold Separately. STD -10 Inlet W/ STD -6 Flow Control Fitting. KRC Series III Pumps are quickly adjustable for the ultimate in driver feel. Weighs on 2.58 lbs. & draws up to 50% less HP than competing pumps. 3.1 GPM