Skip to content

Tagwater pump

Searching for water pump info? Check out all the water pump related articles here on the NAPA Know How blog. We’ve got Know How for all!

A coolant cap on a car. There are three major types of coolant, which include HOAT, OAT and IAT. Here's how to tell the difference between the three and four things to know about HOAT.

What Is HOAT Coolant? 4 Things You Need To Know

Engines are complex machines with rapidly moving metal parts and small clearances. And as such, they generate a lot of heat. You already know that coolant is an integral part of keeping your engine from exploding, and you probably also know that you have multiple coolant options that aren’t interchangeable…

radiator parts anatomy

Keeping Your Vehicle Cool: Radiator Parts Explained

The largest component to your vehicle’s cooling system is the radiator, but did you know that the radiator is also connected to your transmission and in some cases your engine’s oiling system too? Inside your radiator are smaller radiators that help keep your transmission fluid and engine oil cool as well. The basic radiator consists of two tanks with a set of tubes…