Centric 131.66045 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet and GMC Trucks

The Centric C-TEK Standard Brake Master Cylinder 131.66045 is engineered to restore precise brake control for select Chevrolet and GMC heavy-duty trucks. Designed with durable aluminum and a plastic reservoir, this master cylinder ensures consistent hydraulic pressure for safe braking performance.

• Compatible with Chevrolet Silverado, Sierra, Avalanche, Suburban, and GMC Sierra, Savana, Yukon XL models
• Includes a removable single plastic reservoir with cap
• Aluminum master cylinder body with a 1.438 inch (36.513 mm) straight bore diameter
• Two mounting holes for secure installation
• Primary and secondary outlet threads sized 1/2"-20 inverted flare

About the C-TEK Standard Brake Master Cylinder Line

The C-TEK Standard Brake Master Cylinder line by Centric offers reliable replacement parts designed to meet or exceed OEM specifications. This product line focuses on standard master cylinders that provide consistent hydraulic performance and durability for brake systems in heavy-duty trucks. The 131.66045 model is part of this line, delivering a balance of quality materials and precise engineering for Chevrolet and GMC applications.

Product Details and Specifications

This brake master cylinder features an aluminum body for strength and corrosion resistance, paired with a plastic reservoir that is removable for easy maintenance. The bore diameter measures 1.438 inches (36.513 mm), with a straight bore type to ensure smooth hydraulic fluid flow. It includes a master cylinder cap but does not come with mounting hardware, brake booster, push rod, or bleeder hoses. The unit has two ports with 1/2"-20 inverted flare threads for both primary and secondary outlets, supporting secure brake line connections.

Common Applications and Problem Solving

• Restores brake hydraulic pressure in Chevrolet Silverado 1500 HD and GMC Sierra 2500 HD trucks
• Replaces worn or leaking master cylinders causing brake pedal sponginess or failure
• Addresses brake fluid reservoir leaks with a durable plastic reservoir design
• Improves brake system reliability in Chevrolet Express 3500 and GMC Savana 3500 vans
• Supports brake system maintenance for heavy-duty trucks like the Chevrolet Avalanche 2500 and GMC Yukon XL 2500

Installation Notes and Tips

• Verify compatibility with your specific Chevrolet or GMC model before installation
• Use proper brake fluid and bleed the brake system thoroughly after installation
• Note that mounting hardware and push rod are not included and may need to be reused or purchased separately
• Ensure all brake line fittings match the 1/2"-20 inverted flare thread specifications
• Inspect brake booster and related components as they are not included with this master cylinder

Quality Assurance and Warranty

The Centric C-TEK Standard Brake Master Cylinder 131.66045 is manufactured to meet OEM standards for fit and function. While specific warranty details are not provided, Centric products typically undergo rigorous quality control to ensure durability and performance in demanding brake system applications.