In order to work at its best, your engine needs to avoid overheating. That's where your original radiator comes in. It's got the job of fanning hot engine coolant and scattering engine heat. How radiators work might seem complex, but it's not. A factory Toyota or Scion radiator is made up of a core block with a series of flat aluminum tubes and fins. Coolant flows between their inlets their outlets, absorbing heat and getting compressed by a pressure cap in the process. This helps the coolant take on even more heat. The fins then release that heat into the nearby air. A cooler engine results, and a cooler engine runs better. Is your vehicle overheating? Can you hear strange engine noises? Do you smell syrupy ethylene glycol? Is your coolant discolored or gunky? Is your vehicle leaking antifreeze, running high on the temperature gauge? Are your exterior fins damaged? These are all signs you might have radiator problems. Even HVAC system malfunctions can indicate a bad radiator. Luckily, you can buy the best replacement for your repair project right from our auto parts department. We've got OEM Toyota & Scion radiators at the right price. Better yet, you can order online. We'll ship quickly, right to your door!