Original factory specifications are reproduced, directly replaced and installed, without additional debugging. High-quality alloy material, wear-resistant and temperature-resistant, prevent oil leakage and ensure stable operation of gearbox. Accurately control the hydraulic flow, give consideration to cooling and lubrication, and protect the core components of the gearbox. High adaptability gearbox valve body, millisecond response to driving intention, improve transmission efficiency. Precision valve body assembly, integrated solenoid valve and hydraulic valve, precise control of oil circuit, seamless shift.