10EXB  (BNT1969  Idle Gear B)

Genuine Shimano Idle Gear B (part #10EXB, BNT1969) — this secondary idle gear transfers rotational power within the reel's internal gear train, bridging the main drive gear to other drivetrain components for smooth, efficient retrieval. When an idle gear develops worn or chipped teeth, you may experience grinding, inconsistent retrieve speed, or complete loss of gear engagement. Cross-references with Shimano part numbers 10EXB and BNT1969. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.