Part # 2768U. Check build date. Fits 2005-2007 (before July 30, 2007) Ford F-250 and F-350 vehicles.
If your vehicle was made on 8/01/07 or later, you will need model 2769U.
The U variants have a larger bore piston internally to allow more flow from the pump through the box to push larger than stock tires with ease. The sector shaft is larger and stronger internally as well and it has a 6 bolt cast top cover instead of the factory 4 bolt aluminum top cover. Built to last and hold up to more abuse than the standard units.
Price is $661 + $300. Please note: core charges will apply to sale price. Upon return of the core, charges will be refunded. Shipping costs vary.