Get Dodge Expansion Tank. Find Dodge Coolant Reservoirs Replacement Cost. Discover Dodge Antifreeze Reservoir Tank & Dodge Coolant Tanks. Maintaining the coolant tank of your Dodge is crucial for preventing overheating and ensuring peak performance. Regular checks for leaks or cracks and consistent coolant level monitoring can forestall the need for replacement. However, if you notice persistent coolant loss or contamination, it's time to consider a new tank. Opt for a high-quality, durable option that matches your vehicle's specifications, whether it's the robustness of a polyethylene tank or the resilience of a reinforced plastic one. When installing, ensure a snug fit and proper hose connection to extend the lifespan of your coolant system. By choosing the right tank and following these care tips, you safeguard your Dodge's engine and keep your drive smooth and reliable.