ACDelco GM Original Equipment Brake Master Cylinder is pressure tested to ensure safe, confident braking and is the GM recommended replacement for your vehicle's original components. The ACDelco original equipment master cylinder is engineered to fit your specific GM vehicle and will provide the same performance, durability, and service life of your factory original equipment. The ACDelco GM Original Equipment master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. Formulated with a smooth bore finish, these cylinders have an OE quality seal to help increase the life of rubber components. Product Features:GM-recommended replacement part for your GM vehicle's original factory componentOffering the quality, reliability, and durability of GM OEMeets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and qualityPressure tested to ensure safe and confident brakingTrivalent coated bleeder screws provide extra protection and added durability
