Cardone 53-6404 Power Brake Booster

Overview of Cardone Vacuum Power Brake Booster 53-6404

The Cardone Vacuum Power Brake Booster 53-6404 is designed to restore reliable braking performance for Nissan Pathfinder and Infiniti QX4 vehicles. This remanufactured power brake booster features a dual diaphragm style and a durable steel construction to ensure consistent operation.

• Dual diaphragm brake booster style for enhanced vacuum assistance
• Gray color finish with a 10.112-inch (256.8 mm) diaphragm diameter
• Constructed from steel for strength and durability
• Compatible with Nissan Pathfinder and Infiniti QX4 models
• Includes booster and instruction manual; master cylinder not included
• Master cylinder stud thread size: M8 x 1.25
• Remanufactured product condition

Detailed Product Description

This Cardone Vacuum Power Brake Booster 53-6404 is engineered to provide consistent vacuum assistance to the braking system of select Nissan and Infiniti vehicles. The dual diaphragm design improves brake pedal feel and reduces driver effort by amplifying the vacuum pressure applied during braking. With a diaphragm diameter of 10.112 inches (256.8 mm), this booster is sized to meet the specific requirements of the Nissan Pathfinder and Infiniti QX4 models. The steel construction ensures long-lasting durability under normal operating conditions.

The Cardone Vacuum Power Brake Booster product line focuses on remanufactured components that meet or exceed OEM specifications. This line is designed to offer a cost-effective solution for restoring brake system performance without compromising quality or safety. The 53-6404 part number is a direct replacement for the original booster, maintaining proper fitment and function.

Common Applications and Issues Addressed

• Restores brake pedal responsiveness in Nissan Pathfinder and Infiniti QX4
• Eliminates hard brake pedal caused by vacuum leaks or diaphragm failure
• Resolves inconsistent braking due to booster wear or damage
• Addresses vacuum booster failure symptoms such as increased stopping distance
• Replaces faulty or leaking power brake booster components

Installation Notes and Tips

• Ensure compatibility with Nissan Pathfinder and Infiniti QX4 before installation
• Master cylinder is not included; verify master cylinder condition during replacement
• Use proper torque specifications for M8 x 1.25 master cylinder stud threads
• Follow the included instruction manual for step-by-step installation guidance
• Check vacuum lines and connections for leaks after installation

Quality Assurance and Warranty

This remanufactured Cardone Vacuum Power Brake Booster 53-6404 undergoes rigorous testing to meet performance standards comparable to original equipment. While specific warranty details are not provided here, Cardone products typically come with a limited warranty covering defects in materials and workmanship. Refer to the product documentation or Cardone for exact warranty terms.