Weichai BY410800110020 Turbocharger Oil Return Gasket

The BY410800110020 gasket serves as a critical sealing interface between the turbocharger oil return flange and the engine block or crankcase. Manufactured to OEM specifications for Weichai heavy-duty diesel platforms, it prevents oil leakage under thermal cycling and pressure differentials inherent in turbocharged lubrication circuits. Constructed from high-temperature resistant composite material, typically metal-reinforced graphite or stainless steel shim with non-asbestos facing, it maintains dimensional stability across operating temperatures exceeding 300°C. Direct replacement for Weichai part number BY410800110020, applicable to Landking WP10, WP12, WD615, and WD12 engine families found in heavy trucks and mining equipment.