10A1R (RD13585 Drive Gear)

Genuine Shimano Drive Gear (part #RD13585, SKU 10A1R) — the large main gear that converts handle rotation into spool oscillation and rotor spin on Shimano spinning reels. The drive gear is the heart of the reel's power train, meshing directly with the pinion gear to deliver smooth, efficient cranking under load. Worn or damaged drive gear teeth cause grinding, skipping, or complete gear failure, especially when fighting strong fish.
Cross-references with Shimano part number RD13585. OEM replacement restores factory-smooth gear engagement, eliminating rough spots and ensuring reliable power transfer from handle to spool.
Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano spinning reel parts and professional reel service.