Set of caps to check common rail injectors leakage

When the mechanic test the pressure on the Common Rail circuit and the pressure is lower than should be then one more test must be performed to check whether the problem is that the high pressure pump is faulty or any of the injector has a leak, with this set of caps this test can be performed easily and quickly.

The set is composed of 6 caps M12x150 and 6 caps M14x150, so the user can test engines up to six cylinders.