ACDelco Gold Rear Brake Rotor
Gold
Pack of 1

ACDelco Gold Rear Brake Rotor

GM Part #19539202

ACDelco Part #18A82457C

MSRP$114.08*

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

Outside Diameter13.58 in / 345 mm
Rust Resistant CoatingYes
ABS Sensor Ring IncludedNo
Solid Or Vented Type RotorVented
ConstructionFull Cast
Grade TypePremium
Nominal Thickness0.79 in / 20 mm
ClassificationGold
Inside Diameter9.45 in / 240 mm
Stud/Lug Hole Diameter0.63 in / 16 mm
Mounting Bolt Hole Circle Diameter5.5 in / 139.7 mm
Overall Height2.07 in / 52.7 mm
Center Hole Diameter3.1 in / 78.7 mm
Mounting Bolt Hole Diameter0.63 in / 16 mm
MaterialG3000
Mounting Bolt Hole Quantity6
Maximum Brake Diameter (Discard)0.71 in / 18 mm
Balancing TypeDynamic Balance
Brake Surface FinishFine Machining
Disc FinishGeomet Full Coating
Hat FinishGeomet Full Coating

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.

ModelBody StyleTrimYear(s)
Sierra 15002019, 2020, 2021, 2022, 2023, 2024, 2025, 2026
Sierra 1500 Limited2019, 2020, 2021, 2022
Yukon2021, 2022, 2023, 2024, 2025, 2026
Yukon XL2021, 2022, 2023, 2024, 2025, 2026