The DFC 331-47751 rear caliper assembly is engineered to restore precise hydraulic pressure and consistent braking performance in heavy-duty fleet applications. Designed with a silver zinc coating, this caliper offers enhanced corrosion resistance, ensuring longevity in demanding environments. Its robust construction addresses common wear issues such as internal cylinder pitting, piston sticking, and environmental corrosion that can lead to uneven caliper response, soft pedal feel, or fluid leaks under heavy load conditions. Replacing aging or damaged calipers with this premium unit restores full brake force and enhances safety during severe-duty operations.
Constructed to meet or exceed OE specifications, the DFC 331-47751 caliper features a durable cast iron body, high-quality pistons, and precision-machined surfaces for optimal sealing and fitment. Suitable for rear left and rear right positions on the Buick Regal Sportback, it integrates seamlessly into existing brake systems, providing a direct, bolt-in replacement that eliminates the need for modifications. This caliper is ideal for fleet managers and professional mechanics seeking a reliable component that withstands the rigors of commercial and industrial use, including frequent stop-and-go traffic, heavy loads, and severe weather conditions.
Installation should be performed following proper brake bleeding procedures to ensure optimal hydraulic response. Regular inspection of mounting hardware and brake line connections is critical to prevent leaks and maintain system integrity. The caliper’s design supports quick installation, reducing downtime and ensuring fleet readiness. For maximum performance, always verify compatibility with existing brake components and confirm the caliper’s fitment on your specific vehicle model.
Features:
- High corrosion resistance with zinc-coated finish
- Engineered for heavy-duty, commercial fleet use
- Precision-machined cast iron construction for durability
- Fits rear left and rear right positions on Buick Regal Sportback
- Direct bolt-in replacement for OEM calipers



