ACDelco Silver Coated Rear Disc Brake Rotor
Silver
Pack of 1

ACDelco Silver Coated Rear Disc Brake Rotor

GM Part #19422601

ACDelco Part #18A82457AC

MSRP$193.29*

ACDelco Silver Disc Brake Rotors are a quality, high value alternative for General Motors vehicles as well as most makes and models and are backed by General Motors.

  • 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 Silver Disc Brake Rotors are a quality, high value alternative for General Motors vehicles as well as most makes and models and are backed by General Motors. 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. ACDelco Silver parts are a good choice for many vehicles on the road today.

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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
  • Economical value with dependable quality
  • Quality, performance, and dependability of ACDelco Silver parts are validated through an extensive testing regimen

Solid Or Vented Type RotorVented
ConstructionFull Cast
Rust Resistant CoatingYes
MaterialCast Iron
Surface TypeSmooth
ABS Sensor Ring IncludedNo
Outside Diameter13.587 in / 345.1 mm
Discard Thickness0.709 in / 18 mm
Inside Diameter9.756 in / 247.8 mm
Center Hole Diameter3.094 in / 78.6 mm
Mounting Bolt Hole Circle Diameter5.5 in / 139.7 mm
Nominal Thickness0.787 in / 20 mm
ClassificationSilver
Overall Height2.075 in / 52.7 mm
Mounting Bolt Hole Diameter0.63 in / 16 mm
Disc FinishCoated
Mounting Bolt Hole Quantity6
Weight18.1lb

12 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
Sierra 1500 Limited2019, 2020, 2021, 2022
Yukon2021, 2022, 2023, 2024, 2025
Yukon XL2021, 2022, 2023, 2024, 2025