ACDelco 84744483 GM Original Equipment Brake Master Cylinder Assembly

The ACDelco 84744483 Brake Master Cylinder Assembly is a genuine GM Original Equipment replacement part designed for reliable hydraulic braking performance. This master cylinder serves as the heart of your vehicle's brake system, converting pedal pressure into hydraulic force to activate the brakes at all four wheels.

Key Features:

• Genuine GM OEM part ensuring precise fit and factory-level quality
• Meets SAE J1153 and J1154 brake performance testing standards for reliability
• Pressure tested to ensure safe and confident braking operation
• Engineered with cast iron and aluminum construction to minimize stress on brake booster mounting
• Precision-matched reservoir design with geometrical tolerance ensures proper fit and seal
• Piston assembly and return spring designed to prevent brake drag and premature pad wear
• Includes integrated fluid reservoir for brake fluid storage
• Ready to install—no assembly required

This brake master cylinder assembly is manufactured to GM's exacting specifications, providing the same performance, durability, and service life expected from factory original equipment. The hydraulic pump mounts directly to the brake booster and maintains consistent brake pedal response for safe vehicle operation.