BMW 3 Series E46 (1999 - 2006) Rear Shock Top Mount Bracket and Bush 12mm 12mm - PFR5-5630-12 Suits cars with aftermarket rear shock absorber with a 12mm pin. Will not fit E36 and E46 Cabriolet models. Suspension BrandRear Shock Absorber Shaft DiameterOriginal BMW10mmAST10mmBilstein HD, Sport, PSS Coilovers10mmFK Coilovers10mmH&R Coilovers10mmJRZ RS12mmKoni Sport10mmKW V1, 2, 310mmST Coilovers10mmTein Coilovers12mmThe above list is meant as a guide only. If your shock absorber brand is not listed, measuring the OD of the shaft will determine whether PFR5-5630-10 or PFR5-5630-12 should be fitted. - NOTE: Price is for CAR KIT, NOT per bush… Powerflex price their bushes individually, but we have combined the quantities to make it simple!