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ACDelco Gold Performance Front Disc Brake Rotor
Gold

ACDelco Gold Performance Front Disc Brake Rotor

GM Part #88875199

ACDelco Part #18A489SD

MSRP$297.40*

ACDelco Gold (Professional) Performance (Severe Duty) Disc Brake Rotors are a high quality alternative to Original Equipment (OE) parts.

  • Match OE vane configuration for reduced brake wear and optimal cooling
  • Damped iron metallurgy reduces noise and dissipates heat
  • Non-directional rotation eliminates the need for unique left and right designations

About this product

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 WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

  • Match OE vane configuration for reduced brake wear and optimal cooling
  • Damped iron metallurgy reduces noise and dissipates heat
  • Non-directional rotation eliminates the need for unique left and right designations
  • Mill balanced to reduce vibration
  • 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

Surface TypeSmooth
ABS Sensor Ring IncludedNo
Solid Or Vented Type RotorVented
ConstructionFull Cast
Grade TypePerformance
Rust Resistant CoatingYes
MaterialCast Iron
Pad Contact Surface Width2.1 in / 52.95 mm
ClassificationGold
Discard Thickness1.21 in / 30.75 mm
Outside Diameter12.5 in / 317.5 mm
Mounting Bolt Hole Circle Diameter6.5 in / 165.1 mm
Overall Height2.756 in / 70 mm
Disc FinishTurned
Hat FinishTurned
Mounting Bolt Hole Quantity8
Nominal Thickness1.29 in / 32.75 mm
Center Hole Diameter5.409 in / 137.4 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.

The following should be conducted by a qualified technician:

  • Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • Inspect the brake lines for rust, punctures or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • Check the thickness of your brake pads.
  • Inspection of the brake hoses for brittleness or cracking.
  • Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • Inspection of wheel bearings and grease seals.
  • Parking brake adjustments (as needed).

Brake rotor signs of wear include:

  • Visible ridges on rotor surface.
  • Chirping, grinding, or squeaking noises when braking.
  • Difficulty stopping the vehicle.
  • A low or sinking brake pedal.
  • Braking causes the pedal and/or steering wheel to pulsate/vibrate (not to be confused with normal ABS operation.
  • Vehicle pulls to the left or right when brakes are applied.

ModelBody StyleTrimYear(s)
K1500 Suburban1994, 1995, 1996, 1997, 1998, 1999
K25001988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
K2500 Suburban1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999
K35001988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000
Suburban 25002000

Frequently Asked Questions

No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.

No, but it is a good idea to inspect your brake rotors at each tire rotation.