93 - BACKHOE 55 SELECTOR VALVE, SYSTEM RELIEF VALVE AND BYPASS FLOW REGULATOR Parts group 55 SELECTOR VALVE, SYSTEM RELIEF VALVE AND BYPASS FLOW REGULATOR 55 SELECTOR VALVE, SYSTEM RELIEF VALVE AND BYPASS FLOW REGULATOR . SYSTEM RELIEF USED ON 2010 CRAWLER BULLDOZER [E15] SELECTOR VALVE WITH SYSTEM RELIEF VALVE USED ON 1010 AND 2010 WHEEL TRACTORS WITH 710 AND 700 LOADER SELECTOR VALVE WITH SYSTEM RELIEF VALVE USED ON 1010 CRAWLER BULLDOZERS [E17] SYSTEM RELIEF VALVE CARTRIDGE [E18] BYPASS FLOW REGULATOR USED ON 1010, JD350, AND JD450 CRAWLER BULLDOZERS [E19]