109E4 (RD15577 Drive Gear)

Genuine Shimano Drive Gear (part #109E4) — the main horizontal gear connected to the reel handle that powers the entire retrieve mechanism. A worn or chipped drive gear produces clicking, skipping, or dead spots during cranking and risks complete gear failure when fighting large fish. Cross-references with Shimano part number RD15577. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.