The radiator reduces the engine's temperature by dispersing the heat from the coolant/antifreeze. The radiator is composed of many hollow tubes and fins that help transfer this heat into the air. Search our inventory by using your vehicle model or replacement brand to find the right auto radiator for your car. We have what you need for your cooling system including hoses, clamps, hardware, a radiator cap or an overflow tank.
The radiator's basic design hasn't changed for 100 years or so. It's still a system of dozens of copper loops or aluminum tubing, with thin aluminum fins that help dissipate heat from hot coolant to the outside air. Air has less density and lower capacity for heat than a liquid, so the radiator acts as a heat sink through convection to outside air. The radiator fan helps this process by forcing air past the radiator's fins, especially when the vehicle is not moving.
Coolant is custom formulated with ethylene glycol, anti-corrosion agents to protect against scale and cavitation, and a lubricant to keep the water pump running smoothly. Coolant can become contaminated and lose its effectiveness over time and needs to be flushed and refilled at specific intervals.
Regardless of what you drive, shop Advance Auto Parts for everything you need for your cooling system - hoses, clamps, coolant, overflow tank, radiator, shroud, cap, thermostat and water pump!
How do I clean a radiator?
The car's radiator is like a magnet, attracting all sorts of debris, including insects and dirt. Lift the hood and you may find the radiator fins clogged with debris. When the radiator is cool, bring out a garden hose with a nozzle attached and hose it down. This may help you troubleshoot cooling problems.
What is the best way to check coolant levels?
Certainly, by not removing the cap from a hot radiator — you may get burned! Instead, check the nearby coolant reservoir (recovery tank). If low, add a 50/50 mix of coolant (also known as antifreeze) and distilled water. You can purchase a pre-mixed solution or create the blend yourself.
How often should I flush a radiator?
Your owner's manual offers the best guidance on car maintenance intervals, including how often to drain it. There are signs, too, that it is time for a flush, including leaks, overheating, regularly needing to add coolant, and a persistent sweet smell of coolant fluid.
When should I replace the radiator?
If all your cleaning and maintenance efforts are to no avail and your car continues to overheat, then it may be time to replace the radiator with a new one from Advance Auto Parts. Even so, rule out other possible problems first, including a stuck thermostat, malfunctioning temperature sensor, a busted radiator fan clutch, or even a failed water pump.
Buy replacement radiators online or visit your local Advance Auto Parts store and have one of our knowledgable Team Members help you.