ACDelco 18A81021C Gold Front Disc Brake Rotor Vented Coated - 5-Lug

The ACDelco 18A81021C is an ACDelco Gold (formerly Professional) front vented disc brake rotor engineered as a high-quality alternative to Original Equipment (OE) parts. Constructed from G3000-grade cast iron, this coated front rotor is designed to restore smooth, quiet braking performance and predictable stopping power.

The factory-applied coating helps prevent brake pulsation, inhibits the rotor from seizing to the wheel hub, and provides enhanced rust protection against harsh road and weather conditions. The non-directional ground finish minimizes thickness variation and extends brake pad life.

Key Features:

• ACDelco Gold (Professional) grade — a premium OE-quality alternative backed by General Motors
• Coated finish — baked-on coating prevents rust, rotor-to-hub seizing, and brake pulsation
• G3000 qualified cast iron — meets SAE standards for structural integrity and guaranteed performance
• Thickness variation under 0.0004" — minimizes pedal pulsation, noise, and brake pad wear
• Vented design — application-specific vane configuration maximizes airflow for effective heat dissipation
• 5-lug bolt pattern — direct-fit replacement requiring no additional machining
• Mill-balanced — inspected for balance to ensure smooth operation and reduced noise and vibration
• NVH tested — independently tested for Noise, Vibration, and Harshness along with durability and wear
• Ready to install — no machining required; installs straight out of the box

ACDelco Gold parts are manufactured and validated to meet fit, form, and function specifications for General Motors vehicles as well as most makes and models. This rotor is backed by ACDelco's limited warranty coverage for added peace of mind.