The ACDelco Professional Brake Master Cylinder is a direct OE replacement designed for reliable, leak-free performance. It combines aluminum and iron castings with EPDM/SBR rubber seals for heat and corrosion resistance. Pre-bled and ready to install—no assembly needed. Meets SAE J1153/J1154 standards and is pressure-tested for safety. The precise geometry ensures a perfect fit with your vehicle's reservoir, while the piston and return spring help prevent brake drag and premature pad wear. If you're replacing a worn or leaking master cylinder, this is a trusted, quality option that won't let you down. Suitable for many popular car and truck models.
