Introducing the ultimate solution for your Cab & Chassis After-Axle fuel tank needs: the Titan 40 Gallon After-Axle Replacement Tank. Crafted from our renowned military-grade, cross-linked polymer, it is tougher than steel and longer-lasting than aluminum, setting new standards for durability. They are so tough and well-proven that we back them with a Lifetime Warranty. Say goodbye to the perpetual headaches and costly repairs caused by the all-too-common issues of lining failure and corrosion that haunt traditional steel OEM tanks. With our revolutionary tank crafted from military-grade cross-linked polyethylene, you can finally bid farewell to the constant worries of leaks, rust, and deterioration that compromise the integrity of your fuel system. Upgrade to the 40 Gallon Extra Heavy-Duty Frame Mounted After-Axle Replacement Tank today and experience the difference that quality craftsmanship can make. Application Sending Unit is NOT included with tank. For F-350, F-450, and F-550 Narrow Frame, Cab and Chassis vehicles. For model years 1999-2010.Compatible with most bio-diesel fuel. For use with diesel fuel ONLY! Additional Details. Fits in the place of the OEM stock tank. It replaces after-axle diesel tanks for 1999-2010 Ford F350, F450 and F550 cab and chassis applications that utilize PS-123 sending units. Approximate overall tank dimensions: 31.31" x 31.20" x 15.00". Shipping box dimensions, approximate: 36" x 36" x 18". Gross shipping weight: 42.25 lbs. In most cases this product replaces the following original FORD equipment part numbers: XC3Z9002AA, 6C3Z9002BA, 6C3Z9002A, 6C3Z9002E, 6C3Z9002F, 3C3Z9002AA, 5C3Z9002BB. All 1999 vehicles originally came with a 37 gallon tank and will require an 8020099-191 model tank (see below), also straps and a skid plate from FORD. Model year 2000 vehicles may be either, so it is best to call TITAN for proper model fitment.