Mishimoto 2013+ Ford Focus ST/2016+ Focus RS Aluminum Expansion Tank - Wrinkle Red

You're getting a well-built aluminum expansion tank in a sharp Wrinkle Red finish for your 2013-2018 Ford Focus ST or 2016-2018 Ford Focus RS. This tank is designed to replace the stock plastic one, which can become brittle and fail over time due to constant heat cycles. The Mishimoto tank is constructed from durable, TIG-welded aluminum, offering much better longevity and resistance to cracking.

What really sets this tank apart are the internal baffles. These baffles are key for preventing coolant starvation, especially during aggressive driving like high-speed cornering, braking, or acceleration. They keep the coolant near the overflow port, stopping air from getting into your cooling system. Plus, there's a handy sight tube so you can easily check your hot and cold coolant levels, making maintenance a breeze. It reuses your stock cap and even has an overflow nipple if you want to add another coolant tank later.

Installation is straightforward and should take less than an hour, as it's made to fit right in place of the original. It's a solid option for improving both the reliability and the look of your engine bay.