The ACL Race Series Small End Bush (Part #RB843) is a precision small end bush designed for high-performance engine applications. This bush provides the bearing surface between the piston pin and connecting rod small end, allowing smooth articulation during the combustion cycle. Designed for excellent load capacity and wear resistance under high-temperature conditions. Manufactured to OE specifications for direct replacement applications. Engineered with strict quality control standards to ensure consistent performance and reliable engine operation.