Brake caliper. Brake Rotor. Brake Pad Wear Sensor. Rear Brake Rotor & Pad + Brake Caliper for Toyota Matrix 03-07 Corolla Pontiac. Corolla XRS 2005-2006 L4 1.8L Rear L & R. Matrix XRS 2003-2007 L4 1.8L Rear L & R with 4 Wheel Disc.