Ford Motorcraft Coolant Overflow Tank, Ford (2003-07) 6.0L Powerstroke F-250/F-350/F-450/F-550 & Excursion

New Ford Oem 6.0l Powerstroke Coolant Reservoir Tank. The coolant reservoir on the 6.0l Powerstroke is one of the most common causes of coolant leaks. The reservoir is known to expand, swell, crack, and leak with time. Low coolant level can cause major damage which will lead to major repairs. Save yourself time and money by replacing the coolant reservoir on your 6.0 Powerstroke before you have a failure.