Spring strut, ESA, rear Teilegruppe Rear axle, rear-wheel drive, suspension Spring strut, mounted parts BMW Genuine Part 33 54 7 727 620 Product 33-54-7-727-620 Manufacturer number 7 727 620 supply number 7-727-620 installation location: Rear Axle Rear-Wheel Drive Suspension/ Spring Strut Mounted Parts