Centric 131.42309 Brake Master Cylinder

Reliable Brake Master Cylinder for Nissan 720, D21, and Pathfinder

The Centric C-TEK Standard Brake Master Cylinder 131.42309 is engineered to restore precise brake hydraulics for Nissan 720, D21, and Pathfinder models. Designed with durable aluminum and a plastic reservoir, this master cylinder ensures consistent braking performance and safety.

• Compatible with Nissan 720, D21, and Pathfinder vehicles
• Aluminum master cylinder body with a plastic single reservoir
• Includes master cylinder cap and removable reservoir style
• Two mounting holes for secure installation
• Primary and secondary outlet thread size M10-1.00 with inverted flare type
• Straight bore type with a bore diameter of 0.938 inches (23.813 mm)
• Three ports for efficient brake fluid distribution

About the C-TEK Standard Brake Master Cylinder Line

The C-TEK Standard Brake Master Cylinder line by Centric focuses on delivering reliable, OEM-quality brake hydraulics components. This product line emphasizes precise fitment and durable materials, such as aluminum construction and plastic reservoirs, to meet the demands of standard brake system repairs. The 131.42309 part number is a direct replacement designed to maintain factory specifications for Nissan trucks and SUVs.

Product Details and Specifications

This brake master cylinder features a straight bore design with a bore diameter of 0.938 inches (23.813 mm), ensuring proper hydraulic pressure for effective braking. The aluminum master cylinder body offers corrosion resistance and strength, while the plastic reservoir is removable for easy maintenance. The unit includes a master cylinder cap but does not come with mounting hardware, brake booster, push rod, or bleeder hoses. It has two mounting holes and three ports with M10-1.00 inverted flare threads for both primary and secondary outlets, facilitating secure brake line connections.

Common Applications and Problem Solving

• Restores brake fluid pressure in Nissan 720, D21, and Pathfinder brake systems
• Replaces leaking or damaged master cylinders causing brake fluid loss
• Fixes spongy or unresponsive brake pedal issues
• Addresses brake system failure due to worn internal seals or bore damage
• Supports brake system rebuilds requiring OEM-spec master cylinder components

Installation Notes and Tips

Ensure the brake system is properly bled after installation to remove air and maintain braking efficiency. This master cylinder requires existing mounting hardware and brake booster components, as they are not included. Verify the bore size and port thread specifications match your vehicle’s brake lines before installation. The removable reservoir style allows for easier inspection and fluid replacement during maintenance.

Quality Assurance and Warranty

Centric’s C-TEK Standard Brake Master Cylinder 131.42309 is manufactured to meet or exceed OEM standards for fit, form, and function. The aluminum construction and precise machining contribute to long service life. Warranty coverage details should be confirmed with the product documentation or supplier, as Centric typically offers limited warranties on brake hydraulics components.