ACDelco Rear Brake Rotor 18A952A Cast Iron for Chevrolet Silverado

Description

Product Overview

The ACDelco rear brake rotor (model 18A952A) is a cast‑iron disc engineered for reliable performance on Chevrolet Silverado, GMC Sierra, and related trucks and SUVs. Measuring 13.12 x 13.12 x 4.15 inches and weighing 20 lb, it features a painted exterior finish and a non‑directional ground surface that helps dampen vibration. The rotor’s rounded‑radius edges increase structural strength under high heat, while the vehicle‑specific fit ensures precise installation without modification.

Usage

This rear rotor is ideal for daily commuting, highway cruising, and light‑to‑moderate towing. It fits a range of Chevrolet and GMC trucks, making it suitable for owners who demand consistent braking in city traffic, mountain passes, or loaded conditions. Pair it with ACDelco rear brake pads for optimal wear characteristics and a smoother ride.

Why Choose Us

ACDelco brings over a century of automotive expertise, delivering OEM‑quality components that meet or exceed original specifications. Each rotor undergoes rigorous testing for heat resistance, dimensional stability, and NVH (noise, vibration, harshness) performance. Our commitment to quality ensures you receive a part that maintains safety standards and resale value.

Key Features

• Enhanced heat dissipation reduces brake fade during prolonged stops.
• Non‑directional ground finish minimizes noise and vibration for a quieter ride.
• Smooth surface extends brake pad life and promotes even wear.
• Rounded‑radius edges increase strength under high‑load conditions.
• Dedicated customer support and warranty for peace of mind.

FAQ

Is this rotor a direct replacement for my OEM part?

Yes, it matches OEM part number 19241883 and is designed as a vehicle‑specific fit for the listed Chevrolet and GMC models.

Can I use this rotor with aftermarket brake pads?

While it works best with ACDelco rear brake pads, it is compatible with most high‑quality aftermarket pads that meet the same specifications.

What is the expected lifespan of this rotor?

With proper maintenance and regular pad replacement, the rotor can reliably serve for 30,000–50,000 miles, depending on driving conditions.

Does the painted finish affect corrosion resistance?

The painted exterior provides a protective layer that helps resist rust and environmental wear, extending the rotor’s service life.

Is installation required to be performed by a professional?

While the rotor is designed for a straightforward bolt‑on installation, we recommend professional fitting to ensure correct torque and brake system bleeding.