Description
When your coolant overflow tank can’t hold proper pressure, you’ll start noticing mysterious coolant loss and those dreaded hot spots that make your Case tractor’s temperature gauge climb. This little cap does a big job—it keeps your expansion tank’s pressure balance just right so coolant can flow back and forth like it’s supposed to. When it’s working correctly, you won’t even think about it, but when it fails, you’ll know real quick.
What You’re Getting
- Precision pressure relief that opens at exactly the right PSI to protect your cooling system
- Built-in vacuum valve that lets coolant flow back into the engine as things cool down
- Rugged gasket that won’t deteriorate from coolant chemicals or compress over time
- Safety design that releases pressure before you can remove it completely
- Direct replacement that fits standard Case expansion tank designs
Built for Real Farm Work
This cap works on Case Magnum and Maxxum series tractors—machines that earn their keep in tough conditions. Whether you’re running a Maxxum 125 through heavy cultivating or pushing a Magnum 290 during harvest season, your cooling system needs to handle the heat these big engines generate during long workdays.
Made to Last
Farm cooling systems take serious abuse from temperature swings, vibration, and chemical exposure. This cap features agricultural-grade construction with materials designed to handle countless heat cycles. The pressure spring stays calibrated and the seal stays flexible, season after season.
Installation Notes
Never remove any cooling system cap from a hot engine—expansion tanks can build dangerous pressure too. Clean the tank neck thoroughly before installing and make sure the cap seats completely. Check your coolant level after installation, keeping the expansion tank about one-third full when cold.
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