1009E (RD19831 O-Ring)

Genuine Shimano O-Ring (part #1009E) — this O-ring creates a watertight seal between reel body components, preventing saltwater, sand, and contaminants from infiltrating the internal mechanisms. A degraded or cracked O-ring compromises water resistance, leading to corrosion, grease washout, and premature bearing and gear failure. Cross-references with Shimano part number RD19831. OEM replacement provides the exact material and dimensions for a proper seal. Available from Offshore Tackle & Repair in Stuart, FL — your trusted source for genuine Shimano spinning reel parts.