Fuel injector valve

The valve (1) has a control chamber (8) connected to a valve chamber (16) of a control valve (15) over a drain hole (25), where the control valve controls fuel pressure in the control chamber. A valve pin (20) is provided with a valve body (21) interacting with a valve seat surface (41), and a sealing bush (19) is arranged in the valve chamber, where the valve pin is guided in the sealing bush. The sealing bush is supported in a region of the valve seat surface at a side and supported in a sealing surface (18) at another side, which is arranged opposite to the valve seat surface.