Toyota 4Runner Brake Master Cylinders & Reservoirs

A master cylinder is one of the most important components of disc brake systems, being in charge of transforming the pressure applied by the driver on the brake pedal into the hydraulic force that ultimately stops your Toyota 4Runner in case of danger. A linkage from the pedal activates the master cylinder, having a pushrod as its main component. In OE master cylinders, this linkage can easily loose the right setting, starting a chain of malfunctions with brakes dragging and overheating, becoming seriously unreliable in the long run. To avoid this issue, many 4Runner owners have already chosen to install aftermarket brakes on their vehicle, which are designed to be more reliable and safer.

Pistons, reservoirs, return springs, rods, and sealing are the main components of a typical master cylinder. Reservoirs can be external or integral parts of the cylinders, depending on the design. If you push your SUV hard on rough terrains or routes that require a strong braking action, performance master cylinders and reservoirs are likely to be on your shopping list, as their reliability and effectiveness are superior. If your Toyota 4Runner never sees big off-ramps and streambeds, quality-built replacement brake parts are likely to meet your needs. That's what we showcase on this page. Choose from a large selection of Toyota 4Runner brake master cylinders and reservoirs, robustly built to last for years to come.