Shop 2004 Chrysler 300M Engine Coolant Reservoir Cap. Engine Coolant Expansion Tank - Repair or Replace Tank, Cause, Cooling - OEM Chrysler Part # 0K30A15355A (0K30A 15355A)

Cap - SUB Tank. Engine Coolant Reservoir Cap.
A cover that prevents foreign debris from entering the container. Part included in Reservoir assembly.

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Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.