4.3L S/T J 34730-250 is a male 1/4in. NPT hex nipple which allows J 34730-254 Female Coupler (part of J 34730-250 Modification Kit) to be assembled to the previously essential J 34730-1 Hose Assembly. The J 34730-250 Modification Kit can then be used to diagnose the CPI fuel system. |