style of their own with very distinct designs and innovative technology. Catering more to the younger generation, it has made sure that it has quality parts especially the brake system. The part of the brake system that is attached to the brake booster is your Scion brake master cylinder. It is responsible for releasing the fluid towards the caliper which in turn forces the pistons in the caliper to push the brake pads against the rotor to put a stop to the wheels. It all starts with the pressure made on the piston when the driver steps on the brake pedal. This pressure pushes the piston through a linkage. As more pressure is applied on the brake pedal, more pressure is also built in the cylinder and lines. The pressure between the primary piston and the secondary piston forces the second piston to push the fluid in its circuit and into the caliper. And the brakes are applied as the fluid pushes the pistons towards the brake pads and rotors. On top of the brake master cylinder is a plastic brake fluid reservoir where the brake fluid is housed. This needs to be flushed yearly to ensure that your Scion brake master cylinder last for years. It is very important to ensure that your Scion brake master cylinder is working properly. Your life depends on this one very important part. It is important to have a qualified mechanic work on your master cylinder and your brake system. But for quality Scion brake master cylinder replacements, check our online shopping store. We have a selection of the highest quality master cylinders at discount prices. It is made to meet or exceed OE specifications so it's sure to fit your Scion.