Fitting, Radiator Inlet, Straight, 1-3/4 in Hose Barb to 1-5/8-12 in Male O-Ring, Aluminum, Clear Anodize, Allstar Radiators, Each
1-5/8-12 THREAD FITTING HEX IS 2 DISTANCE FROM HEX TO END OF FITTING INCLUDING BARB IS 1-1/2 ALL99358 REPLACEMENT O-RING