Get Chevrolet Silverado 2500HD Pu Plate Heat Exchanger Parts & Chevrolet Silverado 2500HD Pu Heater Core Replacement Parts. Maintaining the heater core in your Chevrolet Silverado 2500HD Pu is crucial for a comfortable driving experience during colder months. Regularly flushing the cooling system can prevent the build-up of sediment, which often leads to heater core malfunction. Be vigilant for signs of a failing heater core, such as a sweet-smelling vapor or a consistent fogging of your windows, indicating it's time for a replacement. When selecting a new heater core, opt for high-grade materials like aluminum or brass for their superior heat conduction and durability. Ensure a precise fit for efficient heat exchange and easier installation. By choosing top-quality heater core parts and following these maintenance tips, you can enhance cabin warmth and prolong the component's life, ensuring your Silverado remains a reliable sanctuary against the cold.