ACDelco Gold Performance Front Disc Brake Rotor
Gold
Pack of 1

ACDelco Gold Performance Front Disc Brake Rotor

GM Part #19362912

ACDelco Part #18A1119SD

MSRP$160.45*

ACDelco Gold Disc Brake Rotors are a high quality alternative to Original Equipment (OE) parts.

  • Proper rotor function supports the entire hydraulic braking system
  • Delivers quiet and reliable deceleration for everyday driving
  • Friction surfaces give brake pads a solid place to grip

Pack of 1

About this product

ACDelco Gold Disc Brake Rotors are a high quality alternative to Original Equipment (OE) parts. When your daily commute or heavy traffic driving is interrupted by annoying steering wheel vibrations or a pulsating brake pedal, it is often a sign that your braking surfaces have become warped or deeply scored. Replacing worn components with these coated disc brake rotors restores smooth, predictable stopping power by providing a clean, flat surface for the brake calipers and pads to firmly grip. These disc brake rotors mount to the wheel hub and give the brake pads a stable, true surface to clamp against, helping restore smooth, quiet deceleration and predictable stopping power in daily commuting or repeated heavy stops. Its baked-on coating helps prevent brake pulsation, helps prevent the rotor from seizing to the hub, and provides superior rust prevention against harsh elements, while the non-directional ground finish extends brake pad life and minimizes thickness variation for consistent braking. They feature a baked-on coating that helps prevent brake pulsation and rotor seizing to the hub. Built with multiple alloys to improve heat dissipation and performance and mill-balanced for proper rotor function, it's validated for proper metallurgy and plate thickness to support reliable braking under real-world thermal stress. ACDelco Gold parts are manufactured to meet your expectations for fit, form, and function, making them a smart choice for General Motors vehicles, as well as most makes and models, including special applications. These high-quality parts are backed by General Motors.

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  • Proper rotor function supports the entire hydraulic braking system
  • Delivers quiet and reliable deceleration for everyday driving
  • Friction surfaces give brake pads a solid place to grip
  • Maintains consistent braking performance without steering wheel vibrations
  • Ensures smooth and predictable stopping power on the road
  • Dissipates heat generated during the vehicle deceleration process
  • Premium aftermarket replacement part
  • Quality, performance, and dependability of ACDelco Gold parts are validated through an extensive testing regimen
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Rust Resistant CoatingNo
Nominal Thickness1.14 in / 28.95 mm
Outside Diameter12.008 in / 305 mm
ClassificationGold
Discard Thickness1.08 in / 27.45 mm
Grade TypePerformance
ABS Sensor Ring IncludedNo
Mounting Bolt Hole Circle Diameter5 in / 127 mm
Overall Height2.15 in / 54.6 mm
Center Hole Diameter3.11 in / 79 mm
Weight16.8lb

24 Months/Unlimited Miles Limited Warranty for Parts (plus Labor if installed by a GM dealer)

Please visit our warranty page on Gmparts.com for full warranty details.

The following should be conducted by a qualified technician:

  • Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • Inspect the brake lines for rust, punctures or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • Check the thickness of your brake pads.
  • Inspection of the brake hoses for brittleness or cracking.
  • Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • Inspection of wheel bearings and grease seals.
  • Parking brake adjustments (as needed).

Brake rotor signs of wear include:

  • Visible ridges on rotor surface.
  • Chirping, grinding, or squeaking noises when braking.
  • Difficulty stopping the vehicle.
  • A low or sinking brake pedal.
  • Braking causes the pedal and/or steering wheel to pulsate/vibrate (not to be confused with normal ABS operation.
  • Vehicle pulls to the left or right when brakes are applied.

ModelBody StyleTrimYear(s)
Trailblazer2002, 2003, 2004, 2005

Frequently Asked Questions

No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.

No, but it is a good idea to inspect your brake rotors at each tire rotation.