Raybestos MC391237 Professional Grade Brake Master Cylinder
- SUPER PREMIUM GRADE: Raybestos Element3 Brake Master Cylinders offer a super premium replacement brake master cylinder that comes ready to install with all new parts including castings, pistons, returns springs and other components.
- OE SPECIFICATIONS: Master cylinder’s bore size and finish matches OE specifications, preventing fluid bypass, which can cause a loss of hydraulic pressure.
- SUPERIOR DURABILITY: Bleeder screws are coated with a hardened zinc dichromate trivalent coating for extra protection and added durability.
- RIGOROUSLY TESTED: 100 percent pressure tested and meets SAE J1153 and J1154 requirements for reliability and performance.