Weichai 612600112311 Turbocharger Oil Return Pipe Assembly

The Weichai 612600112311 is a turbocharger oil return pipe assembly designed to route lubricating oil from the turbocharger bearing housing back to the engine crankcase. It is engineered for Weichai WP10, WP12, and WP13 series common rail diesel engines meeting Euro IV, V, and VI emission standards. Constructed from high-temperature resistant steel tubing with formed flanges and integrated sealing surfaces, this component withstands thermal cycling and engine vibration in heavy-duty applications. It serves as a direct OEM replacement for Weichai-powered vehicles including Sinotruk Howo, Sitrak, and Steyr models; Shaanxi Delong and Aolong series; and Foton Auman EST, GTL, and ETX tractors, dump trucks, and concrete mixers. The assembly ensures precise fitment to the turbocharger outlet and engine block return port, preventing oil leakage and maintaining turbocharger bearing lubrication integrity.