10L4K  (RD14890  Main Shaft)

Genuine Shimano Main Shaft (part #10L4K, RD14890) — the main shaft is the central axle around which the spool rotates and oscillates, directly governing casting smoothness and retrieve feel. A bent, corroded, or worn main shaft leads to rough retrieves, spool binding, and compromised drag performance. Cross-references with Shimano part numbers 10L4K and RD14890. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.