Centric 130.66015 Brake Master Cylinder

Overview of Centric Premium Brake Master Cylinder 130.66015

The Centric Premium Brake Master Cylinder 130.66015 is engineered for reliable brake hydraulic performance in Chevrolet and GMC vehicles. Designed specifically for models like the Astro, G10, G20, P20, P2500, and Safari, this master cylinder ensures consistent braking response and durability.

• Durable cast iron master cylinder body
• Includes a removable plastic reservoir with a single-chamber design
• Comes with a master cylinder cap for secure sealing
• Two mounting holes for stable installation
• Primary and secondary outlet thread sizes: 1/2"-20 and 9/16"-18 inverted flare
• Stepped bore design with primary bore diameter of 1.575 inches and secondary bore diameter of 1.126 inches
• Compatible with Chevrolet and GMC Astro, G10, G20, P20, P2500, and Safari models

About Centric Premium Brake Master Cylinders

The Centric Premium Brake Master Cylinders line focuses on delivering precise hydraulic control and long-lasting performance. This product line features master cylinders constructed from cast iron for strength and includes plastic reservoirs designed for easy maintenance. The 130.66015 model exemplifies this approach by combining robust materials with practical features like a removable reservoir and included master cylinder cap, tailored for specific GM van and truck applications.

Product Details and Specifications

This brake master cylinder features a cast iron body that provides structural integrity and resistance to wear. The included plastic reservoir is removable, facilitating fluid inspection and replacement. It has a single reservoir style with two ports, each equipped with inverted flare threads—primary outlet at 1/2"-20 and secondary outlet at 9/16"-18—ensuring compatibility with standard brake lines. The stepped bore design includes a primary bore diameter of 1.575 inches and a secondary bore diameter of 1.126 inches, optimizing hydraulic pressure distribution. Note that mounting hardware, push rod, brake booster, bleeder hoses, and mounting bracket are not included.

Common Applications and Problem Solving

• Restores proper brake fluid pressure in Chevrolet Astro and GMC Safari vans
• Replaces worn or leaking master cylinders in GMC G10, G20, and P20 models
• Addresses brake pedal sinking or sponginess in Chevrolet P2500 trucks
• Eliminates fluid leaks from damaged reservoirs or seals
• Improves overall brake system responsiveness and safety

Installation Notes and Tips

• Ensure compatibility with your specific Chevrolet or GMC model before installation
• Use appropriate brake line fittings matching the inverted flare thread sizes
• Bleed the brake system thoroughly after installation to remove air
• Verify that the master cylinder cap is securely installed to prevent contamination
• Mounting hardware is not included; retain original hardware or source compatible replacements

Quality Assurance and Warranty

Centric Premium Brake Master Cylinders are manufactured to meet or exceed OEM specifications for fit and function. The 130.66015 part undergoes rigorous quality control to ensure durability and reliable braking performance. Warranty coverage details should be confirmed with the product supplier or manufacturer.