ACDelco 18M67B Gold Brake Master Cylinder

The ACDelco 18M67B Gold Brake Master Cylinder (OEM Reference: 19537091) is a premium-quality replacement component engineered to restore safe, reliable braking performance. As a critical part of the hydraulic braking system, the master cylinder converts the force applied to the brake pedal into hydraulic pressure, pushing fluid through the brake lines and forcing the brake pads against the disc rotors to slow or stop the vehicle.

Key Features:

• Aluminum and iron castings provide a high-quality, durable construction that minimizes stress on brake booster mounting points
• EPDM and SBR rubber internal components deliver superior resistance to heat, corrosion, and fluid leakage
• Geometrical tolerance engineering ensures the cylinder body and plastic reservoir mate correctly for a leak-free, precise fit
• Pressure tested at the factory to ensure safe and confident braking right out of the box
• Bench-bleed ready — no pre-assembly required; installs directly with standard bleed procedure
• Meets brake performance requirements of SAE J1153 and J1154 testing standards
• Backed by General Motors and manufactured to meet OE specifications for fit, form, and function

The ACDelco Gold (Professional) line represents a high-quality alternative to Original Equipment parts, suitable for General Motors vehicles as well as most domestic and import makes and models. Cross-reference OEM part number: 19537091. Sold as a single unit.