Authentic EVINRUDE Gasket, Cap To Manifold (#0311121) – Genuine OEM part from U.S. Boatworks. 40+ years helping boaters nationwide.

Choose OEM quality from U.S. Boatworks. We stock over 2 million marine parts including EVINRUDE #0311121 — and our expert team ensures your repair goes smoothly the first time.

The OEM Advantage

• Engineered specifically for your EVINRUDE engine
• Marine-grade materials resist corrosion
• Proven reliability in harsh conditions

FITS: Verify compatibility for your engine — use our boat parts finder to find the right parts by model and year.

MARINE EXPERTS SINCE 1984

• Over 2 million parts ready to ship — including #0311121
• Largest selection of genuine OEM marine parts
• Need fitment help? See contact options below ↓

Shopping for more parts? Our Boat Parts Finder makes it easy to find everything that fits your engine.