ACDelco 18A2921C Silver Coated Front Disc Brake Rotor

The ACDelco 18A2921C is a Silver (Advantage) series coated front disc brake rotor designed as a high-quality aftermarket replacement for a wide range of GM and non-GM vehicles. This rotor features a robotic-applied, baked-on protective coating that helps prevent brake pulsation, resists rotor seizure to the hub, and provides superior rust protection against rain, snow, and corrosive road spray.

Key Features:

• Corrosion-resistant coating — robotic-applied, baked-on finish provides long-lasting rust prevention against harsh environmental elements
• Non-directional ground finish — minimizes thickness variation and helps extend brake pad life
• Multi-alloy cast iron construction — manufactured with multiple alloys for improved heat dissipation and braking performance
• Mill-balanced design — inspected for proper rotor balance; no extra weights needed, resulting in smooth, quiet brake operation
• SAE-compliant G3000 material — meets SAE standards for structural integrity with OE-matched G3000 qualified cast iron
• Tight thickness tolerance — thickness variation of less than 0.0004" to minimize pedal pulsation and noise
• Ready to install — no machining required; fits directly out of the box
• NVH tested — independently tested for Noise, Vibration, and Harshness (NVH) and durability/wear performance

Backed by a 12-Month/Unlimited-Mile Limited Parts Warranty, the ACDelco 18A2921C delivers the fit, form, and function of premium aftermarket brakes at a value-oriented price point. Pair with ACDelco brake pads for a complete front brake service.