1995-2001 Chevrolet Lumina 3.1L, 3.4L, 3.8L. 1994-1996 Buick Regal 3.1L, 3.8L. Brake Master Cylinder. ►Master Cylinder Material: Aluminum. Power Brake Booster. Brake Caliper. A4: After replacing a brake booster, it may be necessary to adjust the brake light switch.
