This tool set allows the technician to measure the injector return fuel flow volume on Isuzu 4HK-1 & 6HK-1 commercial truck engines.  This tool allows for precise measurement of injector return fuel flow when diagnosing engine control & drivability problems.  This minimizes diagnostic time & the replacement of  unecessary parts
The kit consists of:
·       Graduated Fuel Beakers (4 ea.)
·       Injector return fuel flow hose assemblies (4 ea.)
·       Hoses for testing pressure regulator & pump return
·       Carry case

Note:  Requires the use of injector adapters (p/n FQTK-AD) to connect hoses to the injectors.  Sold separately.