If you're looking for a Porsche heater core, then you know one thing right off the bat: You're driving a water-cooled Porsche. The Porsche heater core is a mini radiator that sits inside the passenger compartment. Hot engine coolant circulates through the Porsche heater core, heating the air that is blown into your cabin. In other words, a working Porsche heater core is a good thing for your comfort and convenience in the wintertime. There's more to it than that, though: A working Porsche heater core is essential for proper engine cooling and for the integrity of your interior. Just like the engine radiator, the Porsche heater core is susceptible to corrosion and leaks. Unlike the engine radiator, however, if your Porsche heater core dribbles coolant, it's going to wind up on your expensive carpets and steel floorpans. So you get the worst of both worlds: Engine overheating due to the Porsche heater core leak and interior damage from the coolant getting onto your carpets. You can even end up with rust in the floors if the Porsche heater core has a slow leak that you don't notice. The bottom line is that your head gasket, carpet, and bodyshell all depend on the integrity of your Porsche heater core, so make sure you check the engine coolant frequently. If you notice an unexplained loss of antifreeze, particularly if it's accompanied by a sense of moisture in the cabin, get your Porsche heater core checked immediately. If you find a bad Porsche heater core, skip the dealership and come straight to us for a replacement. After all, a new Porsche heater core shouldn't cost more than a new Carerra: Save money and get a premium Porsche heater core right here.