Cardone Ultra 18-P4638A Disc Brake Caliper - Front Left

Overview of Cardone Ultra Caliper 18-P4638A

The Cardone Ultra Caliper 18-P4638A is a remanufactured disc brake caliper designed for select Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models. Engineered with a powder-coated silver finish and a steel piston, this caliper offers reliable braking performance for vehicles such as the Buick LeSabre, Cadillac DeVille, and Chevrolet Impala.

• Remanufactured disc brake caliper with steel piston
• Powder-coated silver finish for corrosion resistance
• Includes caliper, bracket, and hardware kit
• Bleeder and inlet port size: M10x1.5
• Installation hardware included; mounting bolts not included

About the Cardone Ultra Caliper Product Line

The Ultra Caliper line from Cardone focuses on remanufactured brake calipers that meet or exceed original equipment specifications. This product line emphasizes durability and fitment accuracy, making it suitable for a range of domestic vehicles. The 18-P4638A caliper benefits from this line’s quality control and attention to detail, ensuring consistent braking performance for compatible Buick, Cadillac, Chevrolet, Oldsmobile, and Pontiac models.

Product Details and Specifications

This Cardone Ultra Caliper features a single steel piston designed to provide consistent hydraulic pressure for effective braking. The caliper is finished with a powder-coated silver surface to resist rust and wear over time. Both the bleeder port and inlet port are sized M10x1.5, matching OEM specifications for proper brake fluid flow. The package includes the caliper, mounting bracket, and a hardware kit, though mounting bolts are not included. This caliper does not come with brake pads.

Compatible Vehicles and Applications

• Buick Aurora, LeSabre
• Cadillac DeVille, Eldorado, Seville
• Chevrolet Impala, Monte Carlo
• Oldsmobile Intrigue
• Pontiac Bonneville, Park Avenue, Riviera

Common Issues Addressed by This Caliper

• Brake pedal feels low or spongy due to caliper malfunction
• Uneven braking or vehicle pulling to one side
• Brake squeal caused by caliper or mounting pin issues
• Corrosion or wear on original caliper components
• Leaking brake fluid from worn piston seals

Installation Notes and Tips

When installing the 18-P4638A caliper, use the included hardware kit for proper mounting. Note that mounting bolts are not included and must be sourced separately if needed. Apply silicone grease to the floating caliper mounting pins to ensure smooth operation and prevent noise. Always use brake fluid recommended by the vehicle manufacturer, typically DOT 3 or DOT 4, and bleed the brake system thoroughly to remove air and restore pedal firmness.

Quality Assurance and Warranty

This remanufactured Cardone Ultra Caliper undergoes rigorous testing to meet OEM standards for fit, form, and function. The powder-coated finish enhances corrosion resistance, extending the caliper’s service life. Installation hardware is included to facilitate proper fitment. Warranty details are provided by Cardone and typically cover defects in materials and workmanship under normal use.