The XDP Aluminum Coolant Recovery Tank Reservoir XD375 adds styling and function under the hood of your 2003-2007 Ford 6.0L Powerstroke. Forget about attempting to "shine up" the plastic factory coolant recovery tank to make your truck show-worthy, replace it once and for all with the XD375. The XDP Aluminum Coolant Recovery Tank Reservoir features a welded aluminum construction and a satin black coating to give you a custom show and race-ready look. Each tank includes a built-in sight glass so you can easily monitor coolant levels and an OE style replacement cap.