10B9B  (RD16132  Handle Knob Seal)

Genuine Shimano Handle Knob Seal (part #10B9B, RD16132) — this seal fits inside the handle knob to protect the internal bearing from saltwater intrusion, sand, and grime, keeping your handle spinning smoothly cast after cast. Without a proper seal, water and contaminants reach the handle knob bearing, causing corrosion, roughness, and eventual bearing failure. Cross-references with Shimano part numbers 10B9B and RD16132. OEM replacement ensures perfect fit and factory performance. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano reel parts.