Coolant Bypass Hose
An automotive bypass coolant hose is a component that connects the engine's water pump to the thermostat housing in a vehicle's cooling system. It functions as a pathway for coolant to flow around the engine when the thermostat is closed, or partially closed, preventing the flow of coolant through the radiator. When the engine is cold, the thermostat remains closed to allow it to warm up quickly. During this time, the coolant bypass hose allows the hot coolant to circulate around the engine block and cylinder head, preventing overheating and ensuring proper lubrication. As the engine warms up and the thermostat opens, the coolant bypass hose is no longer necessary and the coolant is redirected through the radiator for cooling. A malfunctioning or damaged coolant bypass hose can cause engine overheating, coolant leaks, and other problems, which can lead to engine damage and costly repairs.
Show More
When choosing a replacement coolant bypass hose, first confirm the year, make, model, and engine size of the vehicle. Then, from the remaining compatible options, choose the bypass hose that best fits your application and budget needs.
JEGS offers a diverse coolant bypass hose selection to choose from, available from the best aftermarket brands including Gates, Motorcraft, ACDelco, Crown Automotive, JEGS, and many others. Each bypass coolant hose is made from high quality components and assembly to provide long-lasting and leak-free service.
