Crossword clues for the word: RADIATORCAP The word RADIATORCAP has appeared as an answer to at least 6 crossword clues on different crossword puzzles. Crossword clues for RADIATORCAP Showing 1 to 6 of 6 results Clue(s) Coolant suppressor Hat for the well-dressed driver? Headwear that helps an auto mechanic stay cool? It keeps coolant in It must be removed before pouring coolant into an engine It prevents coolant from escaping