Sinotruk HOWO AZ16D251000020+006 truck spare parts Lumbar support control valve

The Sinotruk AZ16D251000020+006 lumbar support control valve is a seat lumbar support control valve designed for China National Heavy Duty Truck Corporation (CNHTC) vehicles. The control valve is responsible for adjusting the support strength and angle of the seat lumbar, aiming to improve the driver’s riding comfort and driving experience.