
Part TypeBrake Rotor
BrandACDELCO
Center Bore Diameter (Mm)108.1mm
Overall Rotor Diameter (Mm)318.77mm
Center Bore Diameter (In)4.3in
Center Hole Diameter108
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 4Check the thickness of your brake pads.
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).
Disc FinishTurned
Product DescriptionACDelco 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. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Bolt Circle Diameter (Mm)139.7
ConstructionFull Cast
Pad Contact Surface Width52.7
Hat FinishTurned
Mounting Bolt Hole Circle Diameter5.5
Abs Tone Ring IncludedNo
Surface TypeSmooth
Bolt Circle Diameter (In)5.5
Outside Diameter12.559
Overall Height67.5
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Programming RequiredNo
Discard Thickness25.9
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 - HeaderThe following should be conducted by a qualified technician:
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 1Visible ridges on rotor surface.
Signs Of Wear &#38; Troubleshooting - Section 1 - HeaderBrake rotor signs of wear include:
Faq - Answer 2No, but it is a good idea to inspect your brake rotors at each tire rotation.
Faq - Answer 1No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
Features &#38; Benefits - Bullet 6Premium aftermarket replacement part
Features &#38; Benefits - Bullet 7Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Features &#38; Benefits - Bullet 2Damped iron metallurgy reduces noise and dissipates heat
Bolt Hole Quantity6
Features &#38; Benefits - Bullet 3Non-directional rotation eliminates the need for unique left and right designations
Features &#38; Benefits - Bullet 4Mill balanced to reduce vibration
Features &#38; Benefits - Bullet 5Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Height (Mm)67.3
Features &#38; Benefits - Bullet 1Match OE vane configuration for reduced brake wear and optimal cooling
Solid Or Vented Type RotorVented
Good Maintenance Practices - Section 1 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems:
MaterialCast Iron
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 6Vehicle pulls to the left or right when brakes are applied.
Height (In)2.6
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 2Chirping, grinding, or squeaking noises when braking.
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 3Difficulty stopping the vehicle.
Rust Resistant CoatingYes
SlottedYes
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 4A low or sinking brake pedal.
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 5Braking causes the pedal and/or steering wheel to pulsate/vibrate (not to be confused with normal ABS operation.
Conventional Or Drum-In-Hat Type RotorConventional
Nominal Thickness27.95
Faq - Question 2Do I have to replace my brake rotors after a certain amount of time?
Faq - Question 1Do I have to replace all my brake parts when replacing my brake rotors?
Vendor Part Number18A1616SD
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations