Dorman - First Stop Brake Master Cylinder P/N:M630848

Turn pedal effort into the hydraulic pressure your brakes rely on with the Dorman First Stop Hyundai Sonata master cylinder, part number M630848. It is a direct-fit replacement for the 2011-2014 Hyundai Sonata (engine: All), engineered to match the original master cylinder's design, function and performance.

• Precise replacement: The aluminum cylinder housing is built to match the casting material of the original part, for similar performance.
• Durable design: Every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
• 100% new: Made entirely from new materials for quality and safety.
• Strict specifications: Built to meet rigorous SAE International standards.

Specifications:

• Reservoir: single, included
• Sensor: included
• Outlets: 2, with an M12 x 1.0 secondary outlet thread and a 1 mm primary outlet thread pitch
• Bore diameter: 0.875 in
• Material: aluminum
• Mounting hardware: not included
• Country of origin: China

A master cylinder may need replacing if you notice a soft or sinking brake pedal, fluid leaking around the cylinder, or a steadily dropping fluid level. Other brake components can cause the same signs, so diagnose the system before replacing. Consult the vehicle service information for the correct fasteners, for whether the originals may be reused, and for the proper bleeding procedure.

Interchange: 100-3071 · 13-4445 · 11-4445 · 130.51059 · 355-03055
1003071 · 134445 · 114445 · 13051059 · 35503055 · 585103Q300 · 585103Q400 · NM55493 · MC391229 · R504445