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N54b30 Crankshaft for BMW OEM 11217527881 Gasoline Engine 6-Cylinder Auto Parts. 24 Months Warranty: Comprehensive 24-month warranty coverage for peace of mind. ISO 9001 & CE Certified: Meets international quality and safety standards. 100% Finished Inspection: Strict visual and functional inspection for every unit. Full Customization Options: Supports customization from samples, designs, and flexible needs. OEM/ODM Service: Professional manufacturing services for branded partners. 25 Years Experience: Over two decades of expertise in crankshaft manufacturing. Complete Production Line: In-house casting, heat treatment, machining, and inspection. Fast Lead Time: Standard and peak season lead time within 15 workdays.