ACDelco 18A1811A Front Disc Brake Rotor

The ACDelco 18A1811A is a Silver (Advantage) series front disc brake rotor designed to provide reliable braking performance for a wide range of vehicles. This vented rotor is engineered as a quality, high-value alternative for General Motors vehicles as well as most makes and models, backed by General Motors quality standards.

Key Features:

• 12.6-inch outside diameter with vented design for superior heat dissipation
• Mill-balanced for proper rotor function with no additional weights required
• Non-directional ground finish minimizes thickness variation and extends brake pad life
• Application-specific vane configuration maximizes airflow to keep rotors running cool
• Manufactured with multiple alloys for improved heat dissipation and performance
• Quality validated for proper metallurgy and correct brake plate thickness
• Cast iron construction with painted hat finish
• Five-bolt pattern with 114.3mm (4.5-inch) bolt circle diameter
• Nominal thickness of 27.991mm (1.102 inches), discard thickness 26.01mm (1.024 inches)

This rotor features a smooth, non-directional surface that dampens noise and vibration while providing consistent braking performance. Ready to install right out of the box with no machining required. ACDelco Silver parts offer dependable quality at an economical price point.