105GY  (BNT1648  Idle Gear B)

Genuine Shimano Idle Gear B (part #105GY, BNT1648) — this secondary idle gear transfers rotational power within the reel's gear train, bridging the gap between the main drive gear and other internal components for smooth, efficient power delivery. When an idle gear develops worn or chipped teeth, you may hear grinding, feel inconsistent retrieve speed, or experience complete loss of gear engagement. Cross-references with Shimano part numbers 105GY and BNT1648. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.