WEICHAI Spare Parts 612601110925 Engine Turbocharger

Weichai part number 612601110925 is a classic turbocharger model for Weichai engines in the heavy-duty truck sector. As it directly influences engine intake control, exhaust pressure, and ECU power data streams, it serves as a critical power actuation component within the truck's powertrain system. It is primarily used with Weichai WD618 series engines (such as the 380 hp version) as well as certain WP10 and WD12 diesel engines. This turbocharger is widely installed on mainstream heavy-duty tractor units and dump trucks from manufacturers such as Sinotruk (HOWO), Shacman, Beiben, and Dayun.

Product Description

Ordering & Shipping Information

High-Creep-Resistance Cast Iron Housing: The turbine housing is constructed from high-grade, heat-resistant ductile iron. Capable of withstanding the sustained exhaust temperatures of 600°C–700°C encountered when trucks climb steep grades under full load, this material effectively prevents thermal cracking, deformation, or creep, ensuring structural stability during prolonged, high-intensity operation.

Precision-Balanced Floating Bearing System: The core rotor assembly utilizes a high-precision dual floating bearing design. With turbocharger speeds reaching over 100,000 RPM, the floating bearings rely on a high-pressure oil film for suspension, cooling, and lubrication; this significantly reduces frictional resistance during high-speed rotation and extends the service life of the shaft.

High-Efficiency Aerodynamic Impeller and Turbine Wheel: The compressor features a precision-cast, high-strength aluminum alloy impeller, while the turbine utilizes a high-temperature-resistant nickel-based alloy wheel. The blade profiles are rigorously optimized for aerodynamics, enabling rapid intake pressure buildup at low speeds (minimizing lag) and delivering sustained, high-volume airflow at high speeds to ensure the engine generates a robust 380 horsepower or more.

Rigorous High-Speed ​​Dynamic Balancing: Before leaving the factory, the core assembly (rotor unit) must pass strict testing on a VSR high-speed dynamic balancing machine. Micron-level balancing precision eliminates centrifugal forces caused by imbalance during high-speed operation, effectively suppressing severe vibration and high-frequency "whining" noises while preventing premature bearing wear.

Modular Standardized Flange Design: Designed in strict accordance with the intake and exhaust manifold specifications of Weichai WD618, WP10, and WD12 engines, the unit features a standard four-bolt intake flange. Whether for OEM replacement or aftermarket modification, it ensures 100% "drop-in" installation without requiring changes to surrounding piping, and offers excellent compatibility with the engine ECU's intake calibration data.