EVINRUDE Diaphragm, Thermostat Cover (Part #0337068) – Factory-direct from U.S. Boatworks. Over 40+ years of marine parts expertise.

This authentic EVINRUDE Diaphragm, Thermostat Cover ensures perfect fit and reliable performance. Part #0337068 ships fast from U.S. Boatworks — backed by 40+ years of marine expertise.

Factory Parts Advantage

• Exact match to original equipment
• Built for marine duty cycles
• Superior corrosion resistance

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

40+ YEARS HELPING BOATERS

• In business since 1984 — we know marine parts — including #0337068
• Massive OEM inventory, ships fast
• Have questions? See contact options below ↓

Looking for more parts? Use our Boat Parts Finder to search by engine model and year.