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 in hose barb to 7 16 in 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 in hex Overall length of 1.5 in Application Notes Fits FPE FMC FF RLK 1116 and FPE FMC FF RLK 1724