Car enthusiasts and mechanics, this 7-inch zinc dual power brake booster kit is exactly what you need for upgrading your vehicle's braking system. The package includes both the zinc-plated 7-inch dual diaphragm brake booster and a cast iron dual bail top master cylinder with a 1-inch bore - everything you need for a complete power brake conversion. The mounting holes are spaced 3 3/8 inches center to center, making this setup compatible with most street rods, hot rods, and custom vehicles without requiring special modifications. The master cylinder features four ports (with 9/16-inch and 1/2-inch ports on each side) and works beautifully for drum/drum, disc/disc, or mixed disc/drum brake setups. This is part number RSRB03123 if you're checking compatibility with your existing system. The zinc finish isn't just for looks - it provides corrosion resistance to keep your brake components looking good and functioning properly for years. Installation is straightforward for anyone familiar with brake systems, though we always recommend checking the product appearance and part number before ordering to ensure it fits your specific vehicle. The dual diaphragm design provides plenty of braking assist without feeling overly sensitive, giving you that perfect balance of power and control. Whether you're building a project car from scratch or upgrading an older vehicle with modern braking performance, this kit delivers professional results without the professional price tag. Comes with a solid 24-month warranty for peace of mind. Your classic car or hot rod deserves brakes that match its performance potential!
Free 30-day returns 
Free 30-day returns
