Ball Joint Lower Bushing — Front Control Arm Bushing (31126783376) Fits BMW E46 3 Series 19992006 and E85 Z4 20032008 Restore steering precision, reduce suspension noise, and proper alignment with this directfit front lower ball joint/control arm bushing (part number 31126783376). Designed to worn or damaged bushings on compatible BMW models, it reestablishes correct suspension geometry and improves overall vehicle stability. Key benefits Direct replacement for the front lower control arm ball joint area: ensures proper fit and function without modification. Reduces play, vibration, and clunking associated with worn bushings for smoother, safer driving. Helps restore steering response and alignment, improving handling and tire wear. Durable construction for reliable performance under normal driving conditions. Main attributes Compatibility: BMW E46 3 Series (1999–2006) and BMW E85 Z4 (2003–2008). Exact fit for part number 31126783376. Functionality: Front lower control arm / ball joint bushing — isolates suspension loads and provides pivoting support for the lower control arm. Fitment: OEMstyle dimensions engineered to match original mounting points and tolerances on the listed models. Performance: Designed to proper suspension geometry and reduce unwanted movement in the lower control arm assembly. Installation: Intended as a direct swap for the original bushing; installation should be performed by a qualified technician or with appropriate tools. Use cases / applications worn front lower control arm bushings that cause steering wander, clunking noise over bumps, or uneven tire wear on E46 3 Series and E85 Z4 models. Part of a suspension refresh during routine maintenance or before alignment to ensure components meet factory tolerances. Prepare a vehicle for higherload or performance driving by renewing suspension pivot points to maintain predictable handling. Notes and recommendations Verify part number 31126783376 and vehicle compatibility before . Professional installation is recommended to ensure correct pressfit and alignment. Replacing both sides at once is advisable for balanced handling. After installation, a wheel alignment is recommended to restore proper tracking and tire life.