Trucks with a 6.7L Cummins engine have a block heater built in, so if you live in an extremely cold climate, you'll want to know where it's located.

If you live in a region with below freezing temps, you may have heard of engine block heaters. Here's what they are, the different types, and how they work.

An engine block heater is a device that preheats the engine block and its internal fluids before starting the vehicle in cold temperatures. It's one of the most useful tools you can have if you ...