ACDelco Gold Black Hat Rear Disc Brake Rotor
Gold
Pack of 1

ACDelco Gold Black Hat Rear Disc Brake Rotor

GM Part #19203141

ACDelco Part #18A2321

MSRP$164.30*

ACDelco Gold (Professional) Non-Coated Disc Brake Rotor and Hub Assemblies are a high quality alternative to Original Equipment (OE) parts.

  • Cross drilled for quick brake response and heat dissipation
  • Black coating on hat and vanes
  • Quality validated for proper metallurgy and correct brake plate thickness

Pack of 1

About this product

ACDelco Gold (Professional) Non-Coated Disc Brake Rotor and Hub Assemblies are a high quality alternative to Original Equipment (OE) parts. These rotors are mounted to the wheel hub where the calipers can press the brake pads against the brake surface to help stop the vehicle. ACDelco Gold (Professional) 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. Some ACDelco Gold parts may have formerly appeared as ACDelco Professional.

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  • Cross drilled for quick brake response and heat dissipation
  • Black coating on hat and vanes
  • Quality validated for proper metallurgy and correct brake plate thickness
  • Tighter tolerances similar to GM OE specifications
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Premium aftermarket replacement part
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models

Pad Contact Surface Width1.5 in / 38.25 mm
ABS Sensor Ring IncludedNo
ConstructionFull Cast
Grade TypePerformance
MaterialCast Iron
Surface TypeSmooth
Rust Resistant CoatingYes
Nominal Thickness0.43 in / 10.9 mm
Outside Diameter10.945 in / 278 mm
Center Hole Diameter2.783 in / 70.7 mm
Discard Thickness0.35 in / 8.9 mm
ClassificationGold
Mounting Bolt Hole Diameter0.557 in / 14.15 mm
Hat FinishTurned
Solid Or Vented Type RotorSolid
Disc FinishTurned
Mounting Bolt Hole Circle Diameter4.53 in / 115.05 mm
Weight11.2lb
Overall Height1.996 in / 50.7 mm

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)
Impala2006, 2007, 2008, 2009, 2010
Monte Carlo2006, 2007