No matter how much you want to save on your Rio, chances are you're not going to find one without a Kia heater core. No air conditioning you can find, but no heater? Not likely. Chances are, though, that you're going to be real happy to have that Kia heater core on the first brisk morning you encounter. Even if you live in Tucson, you're bound to have one or two occasions on which to crank the temperature knob into the red zone, and that's when your Kia heater core kicks into action. Or, more accurately, that's when your water valve kicks into action, allowing coolant to flow into your Kia heater core. Resembling nothing more than a small engine radiator, the Kia heater core sits in the path of the air circulated by your climate control system. Even when you don't call for heat, the air in your cockpit flows through the Kia heater core. It's when hot engine coolant begins to circulate through the Kia heater core that you get warm air at the vents. The Kia heater core transfers engine heat directly into the airstream flowing into the passenger compartment to keep you and your passengers toasty warm. To function correctly, the Kia heater core needs to be able to freely flow coolant throughout its passages and it needs to be free of leaks. If you haven't maintained your cooling system via regular flushing and refilling of antifreeze, these two conditions may not be met within the Kia heater core. Blockages result in lowered flow and a reduction in heat at the outlets, while leaks in the Kia heater core can cause expensive damage to your car's interior. If you detect an unusual amount of moisture in the cockpit or you have a coolant leak you can't find, have the Kia heater core checked by a professional. Finding a leak early, and fixing it with a discount Kia heater core from us, is the best way to save yourself money in the long run.