Holset 5353022 Turbocharger Wastegate Valve Assembly

The Holset 5353022 wastegate valve assembly (manufacturer references 17078, 0047, model P320NA16) is designed for Holset turbochargers equipped on Weichai diesel engines. This pneumatic actuator and valve unit controls turbine bypass flow to regulate intake manifold boost pressure. It features a diaphragm actuator mechanism with calibrated spring rate for specific engine torque curves. Direct replacement for Shacman heavy truck applications utilizing Weichai WP10, WP12, or WP13 power units. Constructed from high-temperature resistant alloys and reinforced diaphragm materials for extended service life in heavy-duty cycles.