Sinotruk 1001337235 Turbocharger Oil Return Pipe Assembly

The 1001337235 turbocharger oil return pipe assembly is engineered to channel lubricating oil from the turbocharger bearing housing back to the engine crankcase. Constructed from high-temperature resistant steel alloy with precision-formed flanges, it ensures leak-free sealing under cyclic thermal loads. This assembly integrates a composite flange gasket and hexagon flange bolts per the OEM service parts diagram (reference item 35). It interfaces directly with the turbocharger center housing rotating assembly (CHRA) drain port and the engine block return gallery. Designed for Weichai WD615, WP10, WP12, and WP13 engine platforms utilized in Sinotruk HOWO A7, T7H, and TX series heavy-duty trucks including tractor, dump, and concrete mixer configurations.