Dirtbike Engine Accessories Bore 95mm Cylinder Block For YZ450F WR450F 2003 2004 2005 2006 YFZ450 2004 - 2013 The 95mm bore cylinder block is designed for use with YZ450F, WR450F, and YFZ450 models from 2003 to 2013.It features a single cylinder configuration with a 450cc displacement and an external diameter of 9.5 cm.This component serves as a direct replacement for the part, compatibility and intended function without modifications.Constructed with materials and engineering, the cylinder block supports engine performance under demanding off-road conditions.A ceramic coating enhances resistance to heat and corrosion while providing self-lubricating properties that reduce friction and wear over time.The design allows straightforward installation suitable for both professional mechanics and experienced DIY riders.Its consistent fitment across multiple model years makes it a practical option for engine rebuilds or performance on compatible dirt bikes.This product meets ISO9001 standards for quality management, reflecting adherence to established manufacturing specifications.