Description
When your Massey Ferguson starts running hot or your heater isn’t working like it should, the bypass hose might be the problem you didn’t know you had. This small but critical cooling system component routes coolant around the thermostat when it’s closed, ensuring proper circulation during warmup and providing heat to your cab. A cracked or collapsed bypass hose can cause overheating, poor cab heat, or erratic temperature swings that’ll have you scratching your head.
What You’re Getting
- Direct replacement that fits properly without modifications or adapters
- Durable rubber construction that handles coolant temperature extremes
- Proper diameter and routing to maintain optimal cooling system flow
- Quality materials that resist cracking from heat cycles and coolant chemicals
Built for Real Farm Work
This bypass hose works with a complete cooling system setup on your Massey Ferguson 4200 and 4300 series utility tractors, plus the 6200 series models. Whether you’re running a 4225 for livestock work, using a 4335 for fieldwork, or operating a 6235 for heavy-duty farm tasks, proper coolant circulation keeps your engine running at the right temperature and your cab comfortable during long work days.
Made to Last
Farm tractors generate serious heat, and cooling system hoses take constant pressure and temperature cycling. This bypass hose is built with rubber compounds that stay flexible through hot summers and cold winters, maintaining a proper seal at both ends even when things get rough.
Installation Notes
This is a straightforward replacement that connects to your existing cooling system fittings. Drain some coolant first to make the job cleaner, and check your other cooling system hoses while you’re at it—they often wear out together. Make sure both ends are seated properly and the clamps are snug but not overtightened.




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