Prox Racing Parts 21.4214 15mm x 19mm x 20mm 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.