ACDelco 18A1428 Professional Black Hat Rear Disc Brake Rotor

The ACDelco 18A1428 Professional Black Hat Disc Brake Rotor is a high-quality aftermarket replacement designed to deliver reliable braking performance for General Motors vehicles and most makes and models. This rear disc brake rotor is part of ACDelco's Gold (formerly Professional) product line, offering an excellent alternative to original equipment parts at a competitive price point.

Key Features:

• Vented rotor construction with application-specific vane configuration for superior heat dissipation and cooling
• Black e-coat rust-preventative finish provides corrosion protection for extended durability
• Precision thickness variation less than 0.0004 inches minimizes brake pedal pulsation and noise
• Mill-balanced and inspected for smooth operation and vibration reduction
• Non-directional surface finish helps extend brake pad life
• Meets SAE standards with G3000 qualified cast iron material for guaranteed structural integrity
• Independently tested for Noise/Vibration/Harshness (NVH) and durability performance
• Ready to install right out of the box—no machining required

Specifications:

• Rotor Type: Rear, Black Hat, Vented
• Outside Diameter: 13.86 inches (352mm)
• Nominal Thickness: 0.865 inches (21.97mm)
• Discard Thickness: 0.803 inches (20.3mm)
• Bolt Pattern: 5 on 5.5 inches (5 x 139.7mm)
• Center Hole Size: 3.1 inches (79mm)
• Overall Height: 2.8 inches (71.1mm)
• Material: Cast Iron
• Surface Finish: Non-Directional

This ACDelco rotor follows original manufacturer designs for optimal heat dispersion, helping to prolong both pad and rotor life while reducing noise and vibration. Backed by General Motors and covered by a limited warranty, the 18A1428 provides the stopping power and peace of mind you expect from a trusted automotive brand with nearly 100 years of industry leadership.