Your car’s cooling system is one of its most important. Using fluid and ventilation, the radiator keeps your vehicle’s engine from overheating. The safety lever radiator cap sits on top of the radiator, allowing you to access the system when you need.

Since your vehicle’s radiator’s fluid is hot and under extreme pressure, you must be certain you dissipate the pressure before you open the radiator cap. If you don’t, you could suffer serious injury. A safety lever radiator cap gives you an easy way to relieve the system’s pressure. Essentially, with a push of a lever, you reduce the pressure in the system. Of course, hot liquid can spray from the radiator any time you access it, but using a safety lever cap reduces your odds of sustaining an injury.


If you notice a leak in your vehicle’s cooling system, you likely need to inspect the entire system to find the source. A leaky cap, however, could be the problem. Over time, radiator caps can wear out, developing cracks and breaks. A cap that no longer effectively contains fluid is one that requires replacement.

Failing to Release

A safety cap should release your vehicle’s radiator pressure when you activate the lever. If it doesn’t, it isn’t doing its job. Test the lever periodically to be certain it hasn’t lost its ability to release pressure.


Seizing is another serious problem with radiator caps. Over time, however, caps can become impossible to remove. If you can’t loosen the radiator cap on your vehicle, you may not be able to add fluid or flush the system. Thus, replace a stuck cap with a modern safety lever radiator cap upgrade.

Keeping your car’s cooling system in great shape should be a priority. By watching for a few problems, you can likely know when you need to replace your vehicle’s radiator cap.

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