Shop Heater Core Parts. Find Heater Core Replacement Parts & Parts Of Heat Exchanger. Explore Plate Heat Exchanger Parts. Browse Heater Core Parts In Canada. Maintaining your car's heater core is crucial for a comfortable drive during cold months, with regular checks for coolant leaks and a sweet scent indicating potential failure. When it's time for a replacement, make an informed choice from copper-brass or aluminum cores, considering their durability and heat conductivity. Copper-brass models typically offer longevity, while aluminum cores are lighter and more efficient, but may not last as long. Always opt for a high-quality part that matches your vehicle's specifications to ensure seamless integration and peak performance. Before installation, flush the system to remove debris and check for any ancillary parts that may need replacing to maximize the lifespan of your new heater core.