The John Deere R561178 is a genuine OEM e23™ Transmission Output Shaft Driven Gear designed for optimal performance in John Deere 8R and 9R Series Tractors equipped with the e23™ PowerShift transmission. This critical component ensures reliable power transfer within the transmission system, maintaining the efficiency and durability of your agricultural machinery. Engineered to John Deere's rigorous standards, the R561178 driven gear provides precise fit and long-lasting operation for demanding farm applications.