Upgrade your braking system with this high-performance hydraulic power brake booster, compatible with Ford Excursion, F-250, F-350, F-450, and F-550 Super Duty equipped with 5.4L, 6.0L, 6.8L, or 7.3L V8/V10 engines. Crafted from premium cast iron and manufactured with advanced technology, this booster is built to withstand high-pressure conditions and ensure long-lasting durability. Each unit is pressure- and leak-tested to meet or exceed OEM performance standards, replacing part numbers 52-7374, 1C3Z2005AA, 2C3Z2005BB, 5C7Z2005B, F81Z2005AA with confidence. Designed to utilize hydraulic pressure from your power steering system, this booster enhances brake responsiveness—especially under demanding load conditions. It installs easily with direct-fit compatibility, saving you time and effort in the garage. Please Note: This unit does not include the pushrod, spring, or spring retainer. These parts must be reused from your original hydro-boost during installation.