Housing and master cylinder device

A master cylinder device, a part of which is arranged in an engine room, the master cylinder device being arranged in the engine room provided with a housing for housing parts, the housing comprising:

• a circumferential wall member enclosing the parts provided to the base and a lid member mounted on an opening in the circumferential wall member on a side of one of the surfaces of the base, wherein
• the lid member comprises a contour inscribed on a quadrilateral formed with two pairs of two sides, and further comprises first cut-out parts formed by cutting out one of the pair of diagonal corners of the quadrilateral, the first cut-out parts having the same size and second cut-out parts formed by cutting out the other of the pair of diagonal corners, the second cut-out parts having the same size, wherein
• the contour of the lid member is formed in a point-symmetrical shape with respect to a center of the opening, wherein
• an area of the first cut-out parts is greater than an area of the second cut-out parts, and wherein
• one of the pairs of the first cut-out parts is arranged at a part of the base which is front in the front direction of the vehicle and low in the vertical direction when the base is mounted on the vehicle.