Automotive and Hydraulic Hoses

Many O’Reilly store locations can build custom hydraulic hoses using the appropriate Gates hydraulic hose and fittings. You can bring your old or damaged hydraulic hose into one of our participating stores, and a Parts Professional will help you match the hose type, size, and fittings to build the best replacement hose for your application. Some hydraulic hoses may also be able to be repaired by replacing the fittings. You can find a store near you that can help you repair or replace your hydraulic hoses using our store locator.

Differences Between an Upper and Lower Radiator Hose

Upper and lower radiator hoses are usually made from the same material and transport coolant between the engine and radiator, but that is often where their similarities end. Other than their shape, the main difference between the hoses is where they connect to the engine and how coolant flows through each hose. The upper radiator hose is normally pressurized and moves hot coolant from the top of the engine to the radiator. The lower radiator hose moves coolant that has been cooled by the radiator back to the engine. The water pump uses suction to pull coolant into the engine through the lower radiator hose, which is why some lower hoses have some type of reinforcement to prevent collapse. Often, if the system is working as it should, you may also note that the upper radiator hose is hot to the touch, where the lower radiator hose may be warm or cool.

When to Replace Your Heater Hoses

Heater hoses are designed to last between 50,000 and 100,000 miles, and most manufacturers recommend changing the heater hoses every five to ten years. However, radiator hoses should be replaced immediately if you notice any cracks or leaks. If leaking heater hoses are not replaced, enough coolant could leak out to cause overheating and severe engine damage.