For Saturn Aura All Trim Levels 2007 - 2009. The brake caliper fits like a clamp on a wheel’s rotor to stop the wheel from turning when you step on the brakes. For Saturn Ion 2.0L 2004 - 2007. When you push the brake pedal, brake fluid creates pressure on pistons in the brake caliper, forcing the pads against the brake rotor and slowing your car.
