Description
That expansion tank cap isn’t just sitting there looking pretty—it’s the control valve that keeps your cooling system working like it should. Your tractor’s expansion tank cap does more than keep coolant from splashing out – it maintains the pressure balance that lets your cooling system work properly. This replacement cap ensures your overflow system can do its job, recovering coolant as the engine cools and releasing excess pressure when things heat up. A faulty expansion tank cap leads to coolant loss, air in the system, and eventual overheating problems.
What You’re Getting
- Calibrated pressure relief for proper system operation that prevents overheating under load
- Vacuum valve allows coolant recovery from expansion tank so you don’t lose expensive coolant
- Durable seal prevents coolant loss and air infiltration keeping your system tight
- Safety design releases pressure before complete removal protecting you from burns
Built for Real Farm Work
Ford New Holland TSA Series tractors (TS100A-TS135A) provide 100-135 horsepower for versatile farming operations including precision agriculture, livestock management, and specialty crop production. Case IH MXU Series models (MXU100-MXU135) deliver reliable performance for row-crop farming, hay production, and medium-scale commercial agriculture. These mid-size workhorses handle everything from loader work to field cultivation, and they need their cooling systems working perfectly when the heat’s on.
Made to Last
The pressure relief spring is calibrated to open at the correct pressure, preventing system damage while maintaining efficient cooling. The vacuum relief valve allows coolant to flow back from the expansion tank as your engine cools, preventing air pockets that cause hot spots. Robust gasket material creates a reliable seal that won’t deteriorate from coolant exposure or compress over time.
Installation Notes
Never remove the cap from a hot system – even expansion tanks can build dangerous pressure. When installing, ensure the cap seats fully and locks properly – a loose cap won’t maintain system function. The expansion tank should be about 1/3 full when cold, allowing room for hot coolant expansion. If you’re constantly adding coolant to the expansion tank, check this cap first – a faulty cap causes mysterious coolant loss without visible leaks.
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