Weichai WPB13037288 Turbocharger Assembly

The WPB13037288 turbocharger is designed as a direct OEM replacement for Weichai Power WP12 and WP13 series heavy-duty diesel engines. This unit utilizes a radial turbine and compressor wheel configuration optimized for the high torque output and emission requirements of Euro IV/V/VII commercial vehicle platforms. The assembly features a water-cooled bearing housing with a pneumatic wastegate actuator for precise boost control. The compressor wheel is manufactured from high-strength aluminum alloy (A356/T6) to withstand high rotational speeds and thermal cycling. The turbine wheel is constructed from Inconel 713C or equivalent high-nickel superalloy to resist oxidation and creep at exhaust gas temperatures exceeding 950°C. This turbocharger is widely applied in city buses and intercity coaches manufactured by Yutong, Zhongtong, and Haige, as well as heavy-duty trucks from Shaanxi Heavy Duty Truck and Sinotruk powered by Weichai engines. It serves as a critical component in the engine air intake and exhaust system, directly influencing fuel economy, emissions compliance, and engine response. OEM cross-references include Weichai part number WPB13037288. The unit is supplied as a complete cartridge assembly (CHRA) with actuator, ready for installation. Professional installation and calibration of the wastegate actuator are recommended to ensure OEM performance parameters.