Sidem 21577 Oscillating arm, wheel suspension Assembly: Rear side Mounting side: lower Assembly: Front axle DX Conical codolo step: 1/6 Conical caliber [mm]: 14.7 Type oscillating arm: oscillating longitudinal arm N Equipped article: 21576 Frame material: aluminum Original codes OE/OEM BMW: 31 12 1 092 610 BMW: 31 12 1 092 820 Before ordering Note: To avoid problems we recommend identifying your vehicle, communicate us the data via e-amil or by phone, our experts are at your disposal.