The valve body with ball, identified by code K 27703, is a precision-engineered component used in the relief valve assembly of the ZV40/48 diesel engine. Designed to control and direct fluid flow under pressure, the integrated ball ensures a tight seal when the valve is closed and allows smooth pressure release when opened. This critical component helps maintain pressure stability within the engine system, protecting sensitive parts from damage caused by overpressure. Built to endure high thermal and mechanical stress, the valve body with ball ensures both safety and consistent engine performance in heavy-duty applications.