Powerflex Rear Upper Link Outer Bushes - Porsche 996/997 - Set of 4

Four rear upper link outer bush assemblies for the specified Porsche 996/997 arm and hub arrangement. Choose PFR57-1508 for 19.5 mm wide arms or PFR57-508 for 22 mm wide arms, with Road Series and Black Series references available.Measure the arm and inspect the hub supportThe size selector refers to the arm width at the bush, not bolt diameter. PFR57-1508 and PFR57-508 are not interchangeable simply because both are described as Porsche upper-link bushes.997 hub-support check: Powerflex identifies some early, pre-2006 cars without support on the outside face of the link-arm-to-hub bush. For the specified 22 mm arrangement it calls for four PFR57-508 outer bushes and four PFR57-509 inner bushes. Where the hub carrier supports both sides, Powerflex instead specifies PFR57-509 at both ends. Do not order PFR57-508 solely by model year.Part numbers and supplied quantity Arm width Road Series Black Series Supplied 19.5 mm PFR57-1508 PFR57-1508BLK 4 bushes 22 mm PFR57-508 PFR57-508BLK 4 bushes The price covers the selected four-bush set, not one bush, four complete arms or all eight inner and outer positions.Original component referencesThe 19.5 mm reference is associated with 99633104703. The 22 mm reference also lists 99733104700 / 99733104701, 99633104702 / 99633104703 and 99633104705 / 99633104706. Shared references do not remove the need to measure the installed arm. GT2/GT3 and modified-arm applications require a separate check.Related inner and supported-outer bushesSee our PFR57-1509 / PFR57-509 upper link bush selection for the inner position and specified supported-outer application. Follow the fitting instructions and check alignment afterwards.Browse the Powerflex range. Confirm the exact mounting arrangement before ordering; there is no blanket fitment guarantee.