2008-10 Peterbilt 325 with Disc Brakes with Hydraulic Brake Booster Brake Master Cylinder. 2008-10 Peterbilt 330 with Disc Brakes with Hydraulic Brake Booster Brake Master Cylinder. 2008-10 Peterbilt 335 with Disc Brakes with Hydraulic Brake Booster Brake Master Cylinder.
