Lemfoerder 31 12 2 284 531 Front Lower Control Arm Left Tension Strut with Ball Joint and Bushing

The Lemfoerder 31 12 2 284 531 is a front lower left control arm — also commonly referred to as a tension strut or wishbone — engineered as a direct OEM-quality replacement for BMW M-series vehicles. Constructed from lightweight aluminium, this control arm is built to the same exacting standards as the original equipment part it replaces, ensuring a precise fit and reliable long-term performance.

As a critical front suspension component, the control arm connects the wheel hub and steering knuckle assembly to the vehicle's chassis. It governs wheel movement, maintains proper alignment geometry, and transfers spring, damping, and stabilizer forces — all essential to safe, responsive handling. This unit ships complete with an integrated ball joint and rubber bushing mount, providing everything needed for a full replacement.

Key Features:

• OEM-equivalent aluminium construction for reduced unsprung weight
• Front axle, lower, forward position — left (driver) side
• Includes integrated ball joint and rubber bushing mount
• Direct bolt-on fitment — no modification required
• Manufactured by Lemförder, a ZF Friedrichshafen AG chassis technology brand supplying OEM suspension components to over 50 vehicle manufacturers
• Also known as: tension strut, thrust arm, wishbone, front arm

OEM / Cross-Reference Part Numbers: 31122284531 | 31-12-2-284-531 | 31 12 2 284 531 | Lemförder 38256 01 | 3825601

Lemförder is one of the most trusted names in European chassis engineering, producing suspension and steering components to OE specification for demanding high-performance applications. This control arm restores factory suspension geometry and ride quality with a confident, lasting repair.