Description
When your cooling system starts acting up—running too cool, taking forever to warm up, or causing your cab heater to blow cold air—the problem often lies with a small but critical part: the thermostat cap. This long-style thermostat body cap keeps your cooling system sealed tight and working like it should, ensuring your Massey Ferguson gets to proper operating temperature and stays there.
What You’re Getting
- Long-style cap that properly seals the thermostat housing to prevent coolant leaks
- Precise fit that maintains proper coolant pressure and flow through the system
- Durable construction that handles temperature cycling and system pressure
- Direct replacement for worn or cracked original caps
Built for Real Farm Work
This cap fits Massey Ferguson tractors from the versatile 100 series models like the 175, 178, and 188 that handle daily farm chores, through the hardworking 200 series tractors including the 275, 285, and 290, up to the powerful 500 series models like the 575 and 590. Whether you’re running a loader, pulling implements, or working long days in the field, a properly sealed cooling system keeps your engine running at the right temperature for maximum efficiency and reliability.
Made to Last
Farm tractors deal with extreme temperature swings, vibration, and constant pressure changes in the cooling system. This cap is built to handle it all, with materials that resist cracking and corrosion while maintaining a tight seal season after season. The long body design provides extra thread engagement for secure installation and long-term reliability.
Good to Know
Install this cap with the cooling system cool to avoid burns from hot coolant. Clean the housing threads before installation and check that the thermostat seats properly. A little thread sealant helps prevent weeping, but don’t overtighten—snug is good enough. When you’re replacing the cap, it’s smart to check the thermostat condition too since they’re often related problems.





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