10D4P (TGT0929  Key Washer)

Genuine Shimano Key Washer (part #10D4P) — a precision-machined washer that locks components in place on the gear shaft, preventing rotation and slippage. A missing or damaged key washer allows parts to shift under load, resulting in gear misalignment, rough operation, and potential internal damage. Cross-references with Shimano part number TGT0929. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.