Premium Raybestos WK1034 Element3 Replacement Rear Disc Brake Caliper Seal Kits replace worn seals to restore the secure seal on each caliper. New seals keep the calipers protected from contaminants and give greater longevity to your vehicle's braking system over long-term use. Made to factory specifications for a precise fit, this kit includes all OE-style components and o-rings for quick and easy installation.