ACDelco 18A82458B Gold Fully Coated Front Disc Brake Rotor

The ACDelco 18A82458B is an ACDelco Gold (Professional) Fully Coated Front Disc Brake Rotor — a high-quality alternative to Original Equipment (OE) parts, engineered and backed by General Motors. This full-cast, conventional disc brake rotor is constructed from durable cast iron and features a complete corrosion-resistant coating to protect against rust and harsh environmental elements such as rain, snow, and road spray.

Key Features:

• Fully coated construction — robotic-applied, baked-on coating helps prevent rotor seizure to the hub and delivers superior rust protection
• Full cast, conventional design — provides structural strength and consistent thermal performance under high heat and load conditions
• Mill-balanced for smooth operation — reduces noise, vibration, and harshness (NVH) for a quieter braking experience
• Non-directional ground finish — minimizes rotor thickness variation to help extend brake pad life and reduce pedal pulsation
• No machining required — ready to install straight out of the box
• GM-backed quality — manufactured to meet GM expectations for fit, form, and function for GM vehicles and most other makes and models
• OEM cross-reference: GM Part Number 19391309

The ACDelco Gold line, formerly known as ACDelco Professional, meets the same demanding standards as original factory components. Sold individually (1 rotor per pack). This rotor is an ideal replacement when rotors are worn below minimum thickness, warped, or damaged.