Cardone 18-B4644A Disc Brake Caliper - Rear Left

Overview of Cardone Unloaded Caliper w/Bracket 18-B4644A

The Cardone Unloaded Caliper w/Bracket 18-B4644A is a remanufactured disc brake caliper designed for select Buick, Oldsmobile, and Pontiac models. This caliper assembly is engineered to meet the specifications required for vehicles such as the Buick Rendezvous, Oldsmobile Silhouette, Pontiac Aztek, and Montana, ensuring reliable braking performance.

• Remanufactured disc brake caliper with bracket included
• Steel piston with 1.495 inch (37.973 mm) diameter
• Gray oil emulsion finish for corrosion resistance
• Bleeder and inlet port size: M10x1.5
• Includes installation hardware kit (mounting bolts not included)
• Compatible with Buick Aztek, Montana, Rendezvous, Oldsmobile Silhouette, and Pontiac models

Product Line Details: Unloaded Caliper w/Bracket

The Cardone Unloaded Caliper w/Bracket product line provides remanufactured calipers that come complete with the mounting bracket and necessary hardware kit for installation. This line is designed to simplify brake system repairs by offering a ready-to-install caliper assembly without brake pads, allowing for flexibility in pad selection. The 18-B4644A part number belongs to this line, ensuring compatibility and quality consistent with Cardone's standards.

Technical Description and Features

This disc brake caliper features a single steel piston measuring 1.495 inches in diameter, providing consistent and durable braking force. The caliper is finished with a gray oil emulsion coating to resist corrosion and extend service life. Both the bleeder port and inlet port are sized M10x1.5, matching OEM specifications for proper brake fluid flow and maintenance. The package includes the caliper, bracket, and a hardware kit for installation, though mounting bolts are not included. This remanufactured caliper is designed to meet or exceed OEM performance standards for the specified Buick, Oldsmobile, and Pontiac vehicles.

Common Applications and Problem Solving

• Replacement for worn or leaking calipers on Buick Rendezvous and Pontiac Aztek
• Restores braking performance on Oldsmobile Silhouette and Montana models
• Addresses issues such as uneven brake pad wear and brake pull
• Helps resolve symptoms of low brake pedal often caused by caliper malfunction
• Eliminates brake squeal related to caliper hardware or piston problems

Installation Notes and Tips

When installing the Cardone 18-B4644A caliper, use the included hardware kit for proper mounting. Note that mounting bolts are not included and should be reused or replaced as needed. It is recommended to apply silicone grease on floating caliper mounting pins to ensure smooth operation. Always use the brake fluid type specified by the vehicle manufacturer, typically DOT 3 or DOT 4, to maintain system integrity. Bleed the brake system thoroughly to remove air and restore proper pedal feel.

Quality Assurance and Warranty

This remanufactured caliper undergoes rigorous testing to meet OEM standards for fit, form, and function. Cardone provides a limited warranty covering defects in materials and workmanship, offering assurance of product reliability. The 18-B4644A part number is backed by Cardone's quality control processes to ensure consistent braking performance on compatible Buick, Oldsmobile, and Pontiac vehicles.