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Your Jeep’s cooling system is designed to handle extreme conditions, but like any system, it is only as strong as its weakest component. On the Wrangler JL and Gladiator JT, that weak link is the stock expansion tank. Molded from thin plastic, the factory tank is prone to cracking at the seams and leaking after repeated heat cycles. What begins as a small coolant drip can quickly escalate into overheating and costly repairs. Our aluminum expansion tank eliminates this issue by replacing the fragile factory reservoir with a stronger and more efficient design that is built to last as long as your Jeep.
The expansion tank plays a critical role in managing coolant volume changes as the system heats up and cools down. When coolant expands under high temperature and pressure, the tank absorbs the excess fluid and then returns it to the system as temperatures drop. If the tank cannot withstand constant fluctuations, the result is leaks and air pockets. With our tank, TIG-welded aluminum construction
