What is another word for radiator cap?
Pronunciation: [ɹˈe͡ɪdɪˌe͡ɪtə kˈap] (IPA) 
A radiator cap is an essential component of any vehicle's cooling system. It is responsible for holding pressure inside the radiator, ensuring that the engine remains cool and efficient. However, there are several synonyms for the radiator cap that you should know about. These include a filler cap, a pressure cap, or a coolant cap. Another name for the radiator cap is the expansion tank cap or overflow tank cap. These synonyms are commonly used in the automotive industry, and it's important to know them for when you need to replace the radiator cap or discuss your cooling system with a mechanic.
