Prox Racing Parts 21.1211 15mm x 19mm x 17.2mm Piston Pin Bearing Go to amazon.com Related posts Thing need consider when find piston pin 15mm? FeatureBearing has 14 rollersExceeds OEM specificationsDirect replacement bearings DescriptionProX Piston Pin Bearings are top quality, direct replacement bearings, exceeding OEM specifications and tolerances.