Centric 131.66021 Brake Master Cylinder

Reliable Brake Master Cylinder for Chevrolet, Dodge, and GMC Vehicles

The Centric C-TEK Standard Brake Master Cylinder 131.66021 is engineered to restore precise brake hydraulics for select Chevrolet, Dodge, and GMC trucks and SUVs. Designed with durable aluminum and a plastic reservoir, this master cylinder ensures consistent brake fluid delivery and reliable stopping power.

Key Features of the Centric C-TEK Standard Brake Master Cylinder

• Constructed with a robust aluminum master cylinder body for durability
• Includes a removable single plastic reservoir for easy maintenance
• Comes with a master cylinder cap included for a complete assembly
• Features a stepped bore design with primary bore diameter of 1.575 inches and secondary bore diameter of 1.126 inches
• Equipped with two ports: primary outlet thread size 1/2"-20 and secondary outlet thread size 9/16"-18, both with inverted flare types
• Designed with two mounting holes for secure installation (mounting hardware not included)

About the C-TEK Standard Brake Master Cylinder Product 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 master cylinders paired with plastic reservoirs, to meet the demands of daily driving and heavy-duty applications. The 131.66021 part is a direct replacement designed to maintain proper brake system function in compatible Chevrolet, Dodge, and GMC models.

Detailed Product Description

This Centric brake master cylinder 131.66021 is designed for vehicles including Chevrolet Blazer, C1500, C1500 Suburban, C2500, C2500 Suburban, K1500, K1500 Suburban, K2500, Dodge Ram 1500, and GMC Yukon. The master cylinder features a stepped bore design that optimizes hydraulic pressure distribution between the primary and secondary circuits. The single removable plastic reservoir simplifies brake fluid inspection and replacement. Both primary and secondary outlets have inverted flare threads to ensure secure brake line connections. Note that mounting hardware, brake booster, push rod, bleeder hoses, and mounting bracket are not included with this part.

Common Brake System Issues Addressed

• Brake pedal sinking or sponginess due to master cylinder wear
• Brake fluid leaks from a damaged or cracked reservoir
• Uneven braking caused by improper hydraulic pressure
• Brake warning light activation related to master cylinder failure
• Loss of braking power in Chevrolet, Dodge, or GMC trucks and SUVs

Installation Notes and Tips

• Ensure compatibility with your specific make and model before installation
• Use proper brake fluid and bleed the brake system thoroughly after installation
• Mounting hardware is not included; retain original hardware or source separately
• Inspect brake booster and push rod components as they are not included with this master cylinder
• Follow manufacturer torque specifications for mounting bolts and brake line fittings

Quality Assurance and Warranty

Centric provides this C-TEK Standard Brake Master Cylinder 131.66021 with quality assurance to meet OEM standards. The part is manufactured with precision materials including aluminum and plastic to ensure durability and reliable brake performance. Warranty details should be confirmed with the distributor or manufacturer, as coverage may vary.