MERCURY Thermostat (60.C) – Genuine OEM part #5033721 from U.S. Boatworks. Family-owned marine parts specialist since 1985.

FITS: HP: 9-300 | Years: 1974 | 4-Stroke

Choose OEM quality from U.S. Boatworks. We stock over 2 million marine parts and provide expert support to ensure your repair goes smoothly the first time.

Why OEM Parts Win

• Precise engineering = perfect fit
• No trial-and-error with aftermarket guesswork
• Install once, done right

GET THE RIGHT PART

• Huge OEM parts inventory
• Expert help included
• Call today: 913-342-0011