WG2203250210 pneumatic control valve is an original high-low speed shift lock valve for the transmissions of Sinotruk HOWO A7, T7, T5G and other models.
It adopts a high-strength housing and aging-resistant seals, featuring pressure and vibration resistance with reliable sealing performance to avoid air leakage and functional failure.
With fast pneumatic response and precise locking, it prevents incorrect high-low speed gear engagement and cylinder air channeling, ensuring smooth gear shifting and driving safety.
Compliant with original factory specifications and perfectly matched in interface, it can directly replace old parts and fits HW series transmissions. It is an ideal accessory for heavy-duty truck maintenance and repair.











