Buy Chrysler 300M RADIATOR RESERVOIR. Engine Coolant Expansion Tank - Repair or Replace A failed Engine, Expansion, Cause - OEM Chrysler Part # 254421D100

Engine Coolant Expansion Tank - Repair or Replace
A failed expansion tank can cause the cooling system in your Chrysler 300M to leak antifreeze, or it can cause your engine to overheat. If you're losing coolant, contact our service department to avoid engine damage.