When the heater is not working in a car, it can be uncomfortable and even dangerous. Zoro offers an extensive assortment of heater cores to help keep the cabin of a car, truck, or SUV nice and toasty. Heater cores are small radiators in your dashboard made of conductive tubing. When hot coolant passes over the core, heat is emitted to help keep you warm on the go. Some signs that you may have a faulty car heater are foggy windows, the smell of coolant, coolant leaking onto the passenger-side floor, or you can't feel any heat. Zoro has solutions for additional automotive heating and air conditioning needs such as compressors and clutches, controls, and accumulators.