An aluminum alloy-made connector capable of preventing corrosion in a desired region even when being caulking-jointed to a piping member, a piping member for connecting a heat exchanger including the connector, and methods for manufacturing these are provided. The aluminum alloy-made connector is configured by an aluminum alloy extrusion material containing 0.2% to 0.8% (mass %, the same shall apply hereinafter) of Si, 0.45% to 0.9% of Mg, xZn% of Zn, and 0.001% to 0.2% of Ti, with the balance being Al and inevitable impurities. Herein, xZn satisfies {(X2+2r2)1/2+34}/38≤xZn≤2.0 (when the piping member is made of an Al—Mg—Si based aluminum alloy) or {(X2+2r2)1/2+16}/24≤xZn≤2.0 (when the piping member is made of an Al—Mn based aluminum alloy). Provided that, in the formula, X is the distance (mm) from the caulking jointed connector to the length-direction end portion of the region requiring corrosion prevention, and r is the radius (mm) corresponding to the external diameter of the piping member.