One stop procurement of right hand lower boom with OE number 31126773950, designed for BMW X5 E70 (2007–2013) and X6 E71 (2008–2014) chassis. As a core front suspension component, it connects the wheel hub to the frame, ensuring precise wheel alignment, stable handling and reliable shock absorption. Made of high-strength forged steel with integrated rubber bushing and ball joint, it delivers excellent durability, shock resistance and noise reduction, resisting deformation and cracks under heavy loads. Manufactured to OEM standards with accurate mounting holes and interfaces, it enables direct bolt-on installation without modification. Effectively fixes common issues like clunking noises, unstable steering, uneven tire wear and poor cornering response caused by worn or damaged arms. With strict quality control and long service life, it is your ideal one-stop solution for suspension repair and maintenance.