Replace Chrysler Heater Core Sealant. Locate Chrysler Heating Elements. Get Chrysler Heater Core Flush Kit & Chrysler Heater Core. To ensure peak performance from your Chrysler's heating system, regular maintenance of the heater core is crucial. Detect the need for a replacement early by watching out for a sweet smell indicating a coolant leak or fogging inside your windows, which suggests a breach in the core. Extend its lifespan by maintaining proper coolant levels and promptly addressing any Hvac system issues. When choosing a new heater core, consider copper for its durability and aluminum for its cost-effectiveness, each designed to meet OEM specifications for a seamless fit. Opt for a model with a robust warranty and corrosion resistance for added peace of mind, and employ a certified technician for installation to guarantee optimal function and longevity.