Weichai 1003178647 Turbocharger Assembly

This turbocharger assembly is designed for Weichai heavy-duty diesel engines commonly installed in Yutong, Zhongtong, and Higer city buses and coaches. It features a mechanical wastegate actuator system and steel turbine housing construction for high-temperature resistance. The unit serves as a direct OEM replacement for Weichai part numbers 1003178647, BY1003714086, and BY1004771612. It restores intake boost pressure to factory specifications, ensuring optimal combustion efficiency and emissions compliance for WP10 and WP12 engine platforms. The compressor and turbine wheels are precision balanced to minimize vibration at high rotational speeds. The bearing system utilizes full-floating journal bearings and thrust bearings lubricated by engine oil supply. Mounting flange geometry and oil inlet/outlet ports match original equipment configuration for direct installation without modification.