Stabilizer, particularly for stationary motor vehicles

A stabilizer (1), particularly for stationary motor vehicles, comprising a cylinder (3) provided at the top with a block (4) associated rotatably with a toothed pivot (5) that is connected monolithically to a plate (6) designed to be fixed to the structure of a motor vehicle, the block (4) being provided with connectors (4d, 4e) adapted to be connected to a hose for connection to a hydraulic control unit which is connected to a duct (4c) provided proximate to the block (4) provided with two passages toward the space delimited inside the cylinder (3) which are controlled by check valves (8, 9) with opposite passage directions.