Mishimoto 99-03 Ford F-250 Aluminum Expansion Tank - Natural

If you're working on a 1999-2004 Ford F-250/F-350 Super Duty or a 2000-2005 Ford Excursion with the 7.3L Powerstroke engine, you know how the original plastic coolant expansion tank can degrade over time. These tanks often become brittle, cloudy, and prone to leaks, making it tough to check your coolant level accurately. Mishimoto offers a well-built aluminum replacement that addresses these common issues.

This expansion tank is constructed from aluminum with durable, TIG-welded seams, meaning it won't crack like the factory plastic one. It also features a built-in sight glass, so you can easily see your coolant level without needing a flashlight. Plus, it holds 43% more coolant than the stock tank, which can help with overall cooling system performance. For added convenience, there's an extra 1/8in NPT port if you ever want to add a pressure sensor.

This tank is designed to fit directly into your 7.3L Powerstroke, making installation straightforward. It's a solid option for anyone looking to upgrade a worn-out or failing original coolant reservoir.