Abstract: A drain pan for radiators and cooling systems includes a base panel which is molded or otherwise formed into a coffer shape defined by upstanding sidewalls extending continuously about the perimeter of the base panel. The base panel includes upwardly extending shoulders raised slightly above the base panel to support a grid formed of a plurality of upwardly extending panels. The shoulders define an X pattern on the base panel in addition to shoulder portions spaced inwardly of the sidewalls and extending parallel thereto. The upstanding panels are equally spaced and oriented parallel to perpendicular axes to form a rectilinear matrix. The base panel includes concave recesses at the corners of the coffer to accommodate wheels or rollers affixed thereto.