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

ACDelco Gold Black Hat Front Disc Brake Rotor

GM Part #19175102

ACDelco Part #18A927

MSRP$221.07*

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

ConstructionFull Cast
Solid Or Vented Type RotorVented
ABS Sensor Ring IncludedNo
Surface TypeSmooth
MaterialCast Iron
Rust Resistant CoatingYes
Nominal Thickness1.5 in / 38.1 mm
Discard Thickness1.437 in / 36.5 mm
Outside Diameter12.795 in / 325 mm
Pad Contact Surface Width2 in / 51.25 mm
ClassificationGold
Weight25.1lb
Center Hole Diameter4.65 in / 118.1 mm
Mounting Bolt Hole Circle Diameter6.5 in / 165.1 mm
Mounting Bolt Hole Quantity8
Disc FinishGround
Hat FinishTurned
Mounting Bolt Hole Diameter0.635 in / 16.15 mm
Overall Height3.51 in / 89.15 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)
Avalanche 25002002, 2003, 2004
Express 25002021, 2022, 2023, 2024, 2025
Express 35002003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023, 2024, 2025
Silverado 2500 HDLT, LTZ, WT2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010
Silverado 2500 HD Classic2007