What is the difference between upper and lower radiator hose?

Your radiator is an integral part of your vehicle. However, it doesn't just hold most of the car's coolant. In fact, it is responsible for removing excess heat from the coolant before it is sent back to the engine to start the process again.

How does a radiator work

The radiator is made of metal and plastic. The metal fins allow the heat absorbed by the coolant to be radiated to the outside, where it is carried away by the moving air. Air enters the heatsink from two sources - a cooling fan (or fans) blows air around the heatsink when it reaches a certain temperature. Air also passes through the radiator as you drive down the road.

Coolant is transported to and from the radiator through hoses. There are upper and lower radiator hoses. Although they both transport coolant, they are very different. If you were to place them side by side, you would find that they were of different lengths and different shapes. They also do different jobs. The top radiator hose is where hot coolant enters the radiator from the engine. It passes through the radiator, cooling as it goes. When it hits the bottom, it exits the radiator through the bottom hose and returns to the engine to start the cycle again.

The upper and lower radiator hoses on your engine are not interchangeable. What's more, at least one of the two is most likely a molded hose, and not just a piece of standard rubber hose. Molded hoses are specifically designed for specific applications and are not interchangeable with other hoses, even with other molded hoses on different vehicles.