Cardone 54-74003 Power Brake Booster

Vacuum Power Brake Booster for Ford and Mercury

The Cardone 54-74003 vacuum power brake booster is a remanufactured replacement built for vehicles that use a vacuum-assisted brake system without a master cylinder. It is engineered and tested to match original equipment performance for consistent brake assist and dependable pedal response.

Compatible with 1981-1983 Ford Escort, 1981-1983 Mercury Lynx, and 1982-1983 Mercury LN7 applications, this Cardone Vacuum Power Brake Booster is a direct-fit service part for the listed configurations. The gray steel housing and single-diaphragm design support OE-style operation in the original brake system layout.

Key Features

• Remanufactured to match original equipment performance
• Single-diaphragm design with an 8.4 in. (213.36 mm) diaphragm diameter
• Steel construction with gray finish
• 100% tested for fit and function
• O.E.-quality seals and check valves installed on every unit
• Rust-prohibitive finishing process helps extend service life
• Master cylinder output rods are pre-adjusted when included
• Package includes booster and instruction manual

Product Details

Cardone Vacuum Power Brake Booster 54-74003 is remanufactured from the original design and inspected for potential improvements where applicable. The unit is built to restore vacuum-assisted brake operation while maintaining the factory-style fit required for the listed Ford Escort, Mercury Lynx, and Mercury LN7 applications. This part cross-references Ford E2FZ2005A and Mercury E2FZ2005A for the same application.

What It Helps Address

• Hard brake pedal feel caused by a weak or failing booster
• Reduced brake assist during normal stopping
• Vacuum-related brake performance loss
• Fitment issues when replacing an original booster on listed vehicles
• Noise or inconsistent pedal response from a worn booster assembly

Installation Notes

Verify vehicle configuration before installation. This booster is listed for 1981-1982 Ford Escort, 1981-1982 Mercury Lynx, 1982 Mercury LN7, and 1983 Ford Escort, 1983 Mercury LN7, and 1983 Mercury Lynx before 02/1983, all without master cylinder. Confirm vacuum brake system layout and compare the original unit to the replacement before bolting it in place.

Quality Assurance

Cardone remanufactures this brake booster to OE performance standards and tests every unit for reliable operation and proper function. The brand’s process includes upgraded sealing components where applicable and a rust-resistant finish to support long-term durability.