SKU: RPCR3907X
UPC: 859828390714
MPN: R3907X
The Racing Power Co-Packaged Yellow Zinc Power Brake Booster with 7-inch outer diameter is engineered for classic muscle car restoration and high-performance brake system upgrades. This dual-diaphragm steel booster delivers reliable vacuum-assisted braking force for 1968–1972 GM A-Body and F-Body vehicles, providing the pedal responsiveness and stopping authority expected from period-correct brake modernization projects.
Constructed from steel with a durable yellow zinc finish, this booster resists corrosion and maintains structural integrity under repeated brake applications. The dual-diaphragm design maximizes brake force multiplication across varying vacuum levels, ensuring consistent pedal feel whether cruising at low speeds or executing emergency stops. At 7.17 lbs and measuring 8.9 × 8.85 × 12.1 inches, the unit integrates into original and modified brake layouts without requiring extensive modification to existing mounting points or brake line routing.
This brake booster serves restoration enthusiasts, hot rod builders, and classic car owners upgrading from manual or deteriorated power-assist systems. Applications include Chevrolet Chevelle, Pontiac GTO, Oldsmobile Cutlass, Buick GSX, and other muscle car platforms from the pre-smog era. Buyers verify fitment against their specific engine bay layout and brake master cylinder configuration before installation. Sold as a single unit for one-vehicle application.
WARNING ⚠️
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Purchasing a Firearm? Click HERE to see our firearm purchasing guide.
