10DK2  (RD18761  Idle Gear B (Small)

Genuine Shimano Idle Gear B - Small (part #10DK2) — this smaller idle gear works within the oscillation mechanism of Shimano spinning reels, meshing with the larger idle gear to convert rotary motion into the linear back-and-forth movement of the spool. A worn idle gear leads to uneven line lay, spool hesitation, and potential gear noise. Cross-references with Shimano part number RD18761. OEM replacement ensures correct tooth profile and smooth oscillation. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano spinning reel parts.