Raybestos MC544 Element3 Brake Master Cylinder Single Bore Cast Iron

The Raybestos MC544 Element3 Brake Master Cylinder is an all-new replacement unit engineered to deliver precise hydraulic braking performance. Built to original equipment specifications, this master cylinder uses precision castings and new internal components to restore proper brake system function with a factory-quality fit.

Part of the Raybestos Element3 Hydraulics line, the MC544 features a single-bore, dual hydraulic channel design with a 1.250-inch bore diameter and a cast iron body and reservoir. Every unit is 100% pressure tested and meets SAE J1153 and J1154 requirements for reliability, ensuring leak-free performance in both hot and cold operating conditions.

Key Features:

• All-new construction — new castings, new pistons, new return springs, and new seals
• 1.250 in. bore size and finish matched to OE specifications to prevent fluid bypass
• Single-bore, dual hydraulic channel (single bowl) design
• Cast iron body for strength and durability
• New piston assembly and return spring prevent brake drag and extend pad and rotor life
• EPDM and SBR rubber components meet SAE specs; resistant to heat, corrosion, and leakage
• Hardened zinc dichromate bleeder screws with trivalent coating for added durability
• Geometrically toleranced body and reservoir for proper fit and leak-free operation
• Arrives complete and ready to bench bleed and install — no assembly required
• 3 mounting holes; 2 ports with 1/2"-20 primary port thread

OEM Cross References: 01191397, 01797432, 1191397, 1797432, 695696, 5461375, H-544, CM1471, F544, M544, NMC21899

Raybestos has been a trusted name in brake components since 1902, and the Element3 line reflects that legacy with parts that install correctly and perform reliably from the first stop.