FAWDE 4102BZ-57.10.40 Turbocharger Oil Return Pipe Assembly

The 4102BZ-57.10.40 turbocharger oil return pipe assembly is engineered to route lubricating oil from the turbocharger bearing housing back to the engine crankcase. Constructed from welded steel tubing with formed flanges and banjo bolt fittings, it withstands high thermal cycles and vibration inherent in heavy-duty diesel operation. The assembly integrates precisely bent routing to clear engine block architecture and ancillary components. It serves as a direct replacement for FAWDE 4102 series engines including CA4DF2, CA4DF3, 4DW91, 4DW92, and 4DW93 variants. Critical sealing surfaces are machined to OEM specifications to prevent oil leakage under boost pressure differentials. The component is validated for fitment on Foton Auman, FAW JH6, and JAC heavy-duty truck platforms utilizing the FAWDE 4102 powerplant. OEM cross-reference interchange includes FAWDE engine factory numbers 4100QBZ-120008 and 4100QBZL-11.11.01B, Foton vehicle number S4102BZ-H37.13.10-40W0016, and aftermarket logistics codes LG9704552426, LG9704552427, LG9704552434. Related variant part numbers 4102BZ.10.40-2 and 4102BZ-H37.13.10-40 share core dimensional geometry. Installation requires new copper crush washers or composite gaskets at banjo connections to ensure sealing integrity.