102NZ (RD14323 Worm Shaft)

Genuine Shimano Worm Shaft (part #102NZ) — the worm shaft drives the oscillation mechanism that moves the spool up and down during retrieval, creating the even, crosshatch line lay pattern essential for long casts and tangle-free fishing. A bent or worn worm shaft causes uneven line distribution, lumpy spool profiles, and reduced casting distance. Cross-references with Shimano part number RD14323. OEM replacement ensures precise oscillation and factory-perfect line lay. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano spinning reel parts.