The Endurance Vortex MaxLife piston pump delivers superior pump life with patented MaxLife and breakthrough Vortex rotating rod technologies. Replacement pump for Ultra Max II 1095/1595 ProContractor Series and GMAX II 5900 ProContractor Series sprayers model year 2019 and newer. Lasts 6X longer between repacks with innovative MaxLife technology Oversized passages for high velocity flow to rotate piston for even wear Repack pump in minutes with new QuikPak cartridge repair system Click Here to Download Manual Fits The Following Sprayers 5900 GMAX II IronMan Hi-Boy # 17E833 TexSpray Mark V IronMan # 17E607 1095 Ultimate MX II IronMan Hi-Boy # 826229 1595 Ultimate MX II IronMan Hi-Boy # 826234 1095 Ultra Max II IronMan Hi-Boy # 17E586 1595 Ultra Max II IronMan Hi-Boy # 17E594 1095 Ultimate MX II IronMan Hi-Boy # 826184 1095 Ultra Max II IronMan Hi-Boy # 16W901 1595 Ultimate MX II IronMan Hi-Boy # 826187 1595 Ultra Max II IronMan Hi-Boy # 16W907 Common Repair Parts 17H843 - Packing Kit 17H879 - Piston Rod 17H868 - Cylinder 257031 - Sleeve 14U993 - Piston Valve 15E654 - Intake Valve Housing