Weichai 61560080159 Smoking Limitator Air Pipe Assembly

The 61560080159 smoking limitator air pipe assembly is an OEM emission control component designed for Weichai WD615 series diesel engines including WD10G, WD10, WP10, and WP12 variants. This precision-formed seamless steel tube is CNC-bent to exact geometry ensuring reliable pneumatic signal transmission from the smoking limitator valve to the intake manifold. The assembly regulates air-fuel mixture during sudden load changes to reduce exhaust smoke opacity. It belongs to the external generator air intake system rather than the engine block itself. The component is engineered for high-temperature durability and leak-free operation in heavy-duty commercial vehicle and construction machinery applications.