509385 Needle bearing, crankcase

This needle bearing is a critical internal component for the crankcase of late-model 4-speed Sportsters. It is designed to fit late 1984 to 1990 XL Sportster models equipped with the 4-speed transmission. This bearing is a direct replacement for OEM part number 9118. In the high-friction environment of the transmission and crankcase, a high-quality needle bearing is essential for smooth operation and to prevent premature wear of rotating shafts. When you are performing a gearbox overhaul or splitting the cases on an Evolution 4-speed Sportster, replacing this bearing is a standard procedure to ensure the long-term reliability of your drivetrain.