Cardone 54-74550 Power Brake Booster

Cardone Vacuum Power Brake Booster 54-74550

Restore brake assist with the Cardone Vacuum Power Brake Booster 54-74550, a remanufactured replacement built to match original equipment performance. This unit is engineered for direct fitment on select Nissan Sentra and Nissan NX applications with JKC brake booster setup and without a master cylinder.

Key Features

• Remanufactured to match O.E. performance
• Single-diaphragm design with an 8.511 in. diaphragm diameter
• Steel housing with gray finish
• 100% tested for fit and function
• O.E.-quality seals and check valves installed
• Rust-prohibitive finishing process for added durability
• Master cylinder output rods are pre-adjusted when included
• Master cylinder stud thread size: M8 x 1.25

Product Details

Cardone’s Vacuum Power Brake Booster line focuses on remanufactured brake boosters that are re-engineered, inspected, and tested to deliver original-equipment performance. For this application, the 54-74550 is built as a vacuum power brake booster with a single diaphragm and steel construction, helping maintain consistent pedal assist and proper brake system operation. The included booster, instruction manual, and M/C neck seal support a straightforward replacement process on the correct Nissan Sentra and Nissan NX configurations.

This part cross-references Nissan 4721064Y10 and 4721064Y13 for the same application.

Vehicle Fitment

• Fits 1991-1994 Nissan Sentra, N/A, with JKC Brake Booster; without Master Cylinder; Vacuum Power Brake Booster
• Fits 1991-1992 Nissan NX, N/A, with JKC Brake Booster; without Master Cylinder; Vacuum Power Brake Booster

What It Helps Address

• Hard brake pedal feel caused by reduced vacuum assist
• Inconsistent brake boost response during normal driving
• Brake system performance issues tied to a worn booster diaphragm
• Vacuum leaks related to aging booster seals or check valves
• Fitment problems when replacing the original booster on the correct Nissan Sentra or Nissan NX setup

Installation Notes

Verify the vehicle uses the JKC brake booster configuration and does not include a master cylinder before installation. Confirm the master cylinder stud thread size is M8 x 1.25 and compare the original booster, mounting points, and vacuum connection before removal. Follow the supplied instruction manual and inspect the master cylinder neck seal during installation to help ensure proper sealing and brake pedal operation.

Quality Assurance

Each Cardone remanufactured power brake booster is tested for fit and function before release. The unit is re-engineered to meet original-equipment performance targets, with O.E.-quality seals, check valves, and a rust-resistant finish used to support reliable service life.