10C13  (RD9911   Drag Washer B)

Genuine Shimano Drag Washer B (part #10C13) — this friction washer works in the drag stack alongside Drag Washer A to provide smooth, consistent drag pressure when a fish pulls line. Worn or heat-damaged drag washers cause stuttering, grabbing, and unpredictable drag behavior that risks breaking your line during a fight. Cross-references with Shimano part number RD9911. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.