The present invention provides a modular anode support member for a plasma spray gun including an outer sleeve, an inner sleeve, and a coolant tube connectable to the outer sleeve. The outer sleeve having a cylindrical sidewall defining a central opening through a length thereof for receiving the inner sleeve. The outer sleeve including a mounting member for mounting the outer sleeve and an associated spray gun to a spray gun manipulator. The inner sleeve for receiving an anode housing is removably disposed in the central opening of the outer sleeve and includes forward and rearward portions defined by a stepped central bore through a length thereof. The forward portion for receiving an anode housing therein, the rearward portion for carrying coolant to and from the anode housing. Alignment means are provided for fixing the relative position of the inner sleeve and outer sleeve in assembly.