Brake Master Cylinder Assembly for Infiniti

Built to OEM spec, this hydraulic master cylinder restores a firm, predictable pedal and even brake force. After a century around parts counters and shop bays, I can tell you: a healthy master cylinder is the heart of your brake system. It keeps your ride safe, straight, and controllable in any stop.

Why you need it ✅

Use this part when the pedal sinks, feels spongy, or braking distances grow. It’s also a must after internal seal wear, fluid contamination, or age-related corrosion. Upgrading with a new unit brings back pressure, modulation, and confidence.

How it works ⚙️

Your foot pushes the pedal; the pushrod moves pistons inside this cylinder. Those pistons compress brake fluid, sending hydraulic pressure to each caliper. The result is tight, balanced clamping at all four corners—every time you brake.

What happens if it fails ⚠️

Expect long pedal travel, uneven braking, dashboard warnings, and longer stopping. In severe cases, internal bypassing leads to sudden loss of pressure. Don’t risk fade or pull—replace before minor symptoms turn into unsafe stops.

Compatibility

• QX70/FX
• G37 Sedan
• Q60/G Coupe
• QX50/EX
• Q60/G Convertible