Our black anodized, billet aluminum barb fitting is a direct replacement for use on the injector return line repair fittings for the 6.7L Power Stroke. 3/32" hose barb to 7/16"-20 O-ring (-4 AN) features: Male AN straight thread O-Ring Boss (ORB) fitting with O-ring Short hex height to maximize install clearance (9/16" hex) Overall length of 1.5" Application Notes Fits FPE-FMC-FF-RLK-1116 and FPE-FMC-FF-RLK-1724