ACDelco 18a927sd | Front Disc Brake Rotor

Part Number
18a927sd
Front Brake Rotor

Fits: 99-04 Chevrolet Silverado 2500, 99-04 GMC Sierra 2500, 00-05 Cadillac DeVille, 00-13 Chevrolet Suburban 2500, 00-13 GMC Yukon XL 2500, 01-03 Chevrolet Silverado 1500 HD, 01-03 GMC Sierra 1500 HD, 02-06 Chevrolet Avalanche 2500, 05-06 Chevrolet Silverado 1500 HD, 05-06 GMC Sierra 1500 HD, 03-20 Chevrolet Express 2500, 03-20 GMC Savana 2500, 03-09 Hummer H2, 07 Chevrolet Silverado 1500 HD Classic, 07 GMC Sierra 1500 HD Classic

Special Price $134.99 Regular Price $149.99
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ACDelco Gold (Professional) Performance (Severe Duty) Disc Brake Rotors are a high quality alternative to Original Equipment (OE) parts. These brake rotors provide reliable vehicle braking power. They feature a thickness variation that helps to minimize pedal pulsation, noise, and help to extend brake pad life. These brake rotors meet the SAE standard for structural integrity with OE matched material, delivering guaranteed performance. Black and gray fusion coating provides corrosion protection. These rotors are uniquely designed for off road vehicles, SUVs, trucks, and fleet trucks. ACDelco Gold (Professional) Performance (Severe Duty) Disc Brake Rotors are ready to be installed right out of the box - no machining required. 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. ? WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov


BRAND: ACDelco




FEATURES:


  • Cadillac;Chevrolet;GMC;Hummer
  • Damped iron metallurgy reduces noise and dissipates heat
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Match OE vane configuration for reduced brake wear and optimal cooling
  • Mill balanced to reduce vibration
  • Non-directional rotation eliminates the need for unique left and right designations
  • Premium aftermarket replacement part
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional


SPECIFICS:


ABS Sensor Ring IncludedNo
Bolt Circle Diameter (in)6.5
Bolt Circle Diameter (mm)165.1
Bolt Hole Quantity8
Center Bore Diameter (in)4.6 in
Center Bore Diameter (mm)118.1 mm
ConstructionFull Cast
Disc FinishTurned
FAQ - Answer 1No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
FAQ - Answer 2No, but it is a good idea to inspect your brake rotors at each tire rotation.
FAQ - Question 1Do I have to replace all my brake parts when replacing my brake rotors?
FAQ - Question 2Do I have to replace my brake rotors after a certain amount of time?
Good Maintenance Practices - Section 1 - Bullet 1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 2Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Good Maintenance Practices - Section 1 - Bullet 3Inspect the brake lines for rust, punctures or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
Good Maintenance Practices - Section 1 - Bullet 4Check the thickness of your brake pads.
Good Maintenance Practices - Section 1 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems:
Good Maintenance Practices - Section 2 - Bullet 1Inspection of the brake hoses for brittleness or cracking.
Good Maintenance Practices - Section 2 - Bullet 2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Good Maintenance Practices - Section 2 - HeaderThe following should be conducted by a qualified technician:
Grade TypePerformance
Hat FinishTurned
Height (in)3.5
Height (mm)89.2
Length (in)13.2
MaterialCast Iron
Overall Rotor Diameter (mm)324.87 mm
Programming RequiredNo
Rust Resistant CoatingYes
Signs of Wear & Troubleshooting - Section 1 - Bullet 1Visible ridges on rotor surface.
Signs of Wear & Troubleshooting - Section 1 - Bullet 2Chirping, grinding, or squeaking noises when braking.
Signs of Wear & Troubleshooting - Section 1 - Bullet 3Difficulty stopping the vehicle.
Signs of Wear & Troubleshooting - Section 1 - Bullet 4A low or sinking brake pedal.
Signs of Wear & Troubleshooting - Section 1 - Bullet 5Braking causes the pedal and/or steering wheel to pulsate/vibrate (not to be confused with normal ABS operation.
Signs of Wear & Troubleshooting - Section 1 - Bullet 6Vehicle pulls to the left or right when brakes are applied.
Signs of Wear & Troubleshooting - Section 1 - HeaderBrake rotor signs of wear include:
SlottedYes
Solid Or Vented Type RotorVented
Surface TypeSmooth
Weight (lb)26.6
Width (in)13.2



DOWNLOADS:




APPLICATIONS:


  • 2007-2007 GMC Savana 2500 - Position: Front
    • with 8500lb & 8600lb GVW
  • 2003-2005 Chevrolet Express 2500 - Position: Front
    • with 8500lb & 8600lb GVW
  • 2007-2007 Chevrolet Silverado 1500 HD Classic - Position: Front
  • 1999-2004 Chevrolet Silverado 2500 - Position: Front
  • 2000-2005 Cadillac DeVille - Position: Front
    • GM Brake Code J55 w/ 8 Lug Wheels
  • 1999-2004 GMC Sierra 2500 - Position: Front
  • 2007-2007 GMC Sierra 1500 HD Classic - Position: Front
  • 2000-2013 Chevrolet Suburban 2500 - Position: Front
  • 2005-2006 GMC Sierra 1500 HD - Position: Front
  • 2008-2020 GMC Savana 2500 - Position: Front
  • 2000-2013 GMC Yukon XL 2500 - Position: Front
  • 2003-2009 Hummer H2 - Position: Front
  • 2001-2003 Chevrolet Silverado 1500 HD - Position: Front
  • 2006-2006 Chevrolet Express 2500 - Position: Front
    • w/ 8,500 or 8,600 lb. GVW
  • 2003-2005 GMC Savana 2500 - Position: Front
    • with 8500lb & 8600lb GVW
  • 2006-2006 GMC Savana 2500 - Position: Front
    • w/ 8,500 or 8,600 lb. GVW
  • 2005-2006 Chevrolet Silverado 1500 HD - Position: Front
  • 2007-2020 Chevrolet Express 2500 - Position: Front
  • 2001-2003 GMC Sierra 1500 HD - Position: Front
  • 2002-2006 Chevrolet Avalanche 2500 - Position: Front
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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