Parts & Accessories Spare parts Radiator water reservoir (coolant tank) original. Condition: Used and very clean (free of cracks or leaks). Compatibility: Compatible with Dodge Challenger, Dodge Charger, and Chrysler 300 cars (please ensure the shape matches your car). Features: Comes complete with its original cap, and the reservoir body is in excellent condition and ready for immediate installation to regulate coolant pressure and protect your engine.