Sidem 21774 Oscillating arm, wheel suspension Mounting side: lower Assembly: Front Assembly: front axle left Conical codolo step: 1/6 Conical caliber [mm]: 19 Type oscillating arm: oscillating longitudinal arm N Equipped article: 21775 Frame material: cast iron Original codes OE/OEM BMW: 31 12 6 773 949 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.