ACDelco 18A1493A Silver Rear Disc Brake Rotor

The ACDelco 18A1493A is a Silver-line solid rear disc brake rotor designed to deliver reliable braking performance for a variety of makes and models. Part of the ACDelco Silver (formerly Advantage) product line, this rotor is a high-quality, high-value alternative to OE parts, backed by General Motors engineering and testing standards.

Key Features:

• Multi-alloy cast iron construction for superior heat dissipation and performance
• Non-directional ground finish minimizes thickness variation and helps extend brake pad life
• Mill-balanced design for smooth operation and reduced noise, vibration, and harshness (NVH)
• Rounded radius edges increase structural strength under high heat and load conditions
• Solid rotor construction with 5-bolt mounting pattern
• 11-inch outside diameter with 0.394-inch nominal thickness
• Non-coated finish, ready to install right out of the box

This rear brake rotor is engineered with application-specific design to maximize airflow and cooling while dampening vibration for a smooth, quiet ride. The precision-machined surface ensures even brake pad contact and helps prevent premature wear. Compatible with Ford, Lincoln, Mazda, and Mercury vehicles. Sold individually. OEM part number 19261813.