Coolant pumps are the unsung heroes of many machines, from cars to industrial equipment. They ensure that engines and systems stay cool, efficient, and operational, preventing overheating and expensive damage. Whether you’re a mechanic, an engineer, or simply a curious individual, understanding coolant pumps is essential. This guide will break down everything you need to know about coolant pumps — what they are, how they work, types, maintenance tips, and why they’re indispensable.