FlowLuxe Cable-Type Rear Left Window Regulator Assembly in Metal and Plastic for BMW X3 E83 2004-2010

A precisely engineered window regulator assembly built from metal and plastic to restore smooth glass movement on the rear left door of your BMW X3 E83 from 2004 through 2010. The cable-type lifting mechanism replaces a worn or failed unit with a direct-fit design that mirrors the factory geometry, so no drilling or modifications are needed during installation. Every reinforced component and well-crafted-grade material contributes to adaptive durability, while the assembly arrives 100% brand new without a motor for vehicles retaining the original drive unit. The compact dimensions of approximately 27.2 by 11.5 by 3 inches and a weight of about 2.6 pounds make handling straightforward in a garage setting. Supported by a 2-year manufacturer warranty, this rear left regulator also cross-references OE numbers 51353448251, 51353413189, 749-586, 135-58668L, and 749586, giving you a confident path back to quiet, reliable window operation.