Upgrade your Ford Super Duty or Excursion's plastic coolant tank with this all-aluminum reservoir. It's 100% brand new, fully TIG welded, and leak-tested for reliability. The cap is billet aluminum and even has a pressure release function. Plus, there's a sight glass so you can check the coolant level at a glance. Direct replacement – no drilling or mods needed. Fits a ton of trucks: 2003-2007 F250, F350, F450, F550 Super Duty with 5.4L, 6.0L, or 6.8L V8/V10 engines, and the 2003-2005 Excursion with the 6.0L. The anodized black finish looks tough and resists heat and vibration. Comes with a 12-month warranty, so you can buy with confidence. Say goodbye to cracked plastic tanks!