Replacement Pump for Graco Airless Spray Machine 390,395,495,595, & More After Market Replacement Part for a Graco Fluid Section Assy Part # 246428 Cylinder Piston Rod Gasket Assembly Complete with lower inlet, check ball, seat and cage! Fits Ultra 395,495, 595,ST Pro, STX, Ultra Max 695,295st,GMax 3400, LineLazer3400 Graco Parts #'s That make up this complete fluid section 244-194 packing kit, 243-181 piston valve, 249125 rod, 243-176 cylinder,193-047 packing nut,15b611 intake valve