Powerflex Polyurethane Bush kit for BMW E39 5 Series (1996 - 2004) Rear Lower Arm Rear Bush - PFR5-711-12 - Fits E39 Saloon models that use a 12mm bolt diameter. This part replaces the bush in E39 arm OE numbers: 33326755471 and 33326755472. - Bush Size: 12mm Bore Sleeve - PRICE IS PER CAR KIT, NOT per bush. Powerflex usually price their bushes singly, but we have combined the QTY and price to keep it simple for you!