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- Front Disc Brake Rotor
Part TypeBrake Rotor
BrandACDELCO
Package Height3.0
Package Width12.33
Package Length12.33
Weight20.0 PG
Weight18.3
Center Bore Diameter (Mm)78.6mm
Overall Rotor Diameter (Mm)304.8mm
Center Bore Diameter (In)3.1in
Number Of Lugs6
Center Hole Diameter78.5
Disc ConstructionVented
Good Maintenance Practices - Section 1 - Bullet 1Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Max Center Hole Diameter3.1 in (78.74 mm)
Abs Sensor Ring IncludedNo
Directional Or Non-Directional Brake SurfaceNon-Directional
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.
Pad Contact Surface Width (Mm)49.5
Center Hole Diameter (Mm)78.74
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 FinishCoated
Nominal Thickness (Mm)29.006
Stud/Lug Hole Quantity6
Product DescriptionACDelco Gold (Professional) Fully Coated Disc Brake Rotors are the 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 slow 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. ⚠<b> WARNING:</b> Cancer and Reproductive Harm - www.P65Warnings.ca.gov
Front Brake TypeVarious - Application Specific
Mounting Bolt Hole Quantity6
Bolt Circle Diameter (Mm)139.7
ConstructionFull Cast
Overall Rotor Diameter12 in (304.8 mm)
Width (In)12.3
Pad Contact Surface Width1.9
Hat FinishTurned
Pitch Circle Diameter (Mm)139.7
Discard Thickness (Mm)27.178
Mounting Bolt Hole Circle Diameter139.7
Overall Height (Mm)58.17
Length (In)12.3
PositionFront
Abs Tone Ring IncludedNo
Surface TypeSmooth
Bolt Circle Diameter (In)5.5
Pitch Circle Diameter5.5 in (139.7 mm)
Outside Diameter12
Part CategoryReplacement Parts
Overall Height2.285
Thickness (Mm)29.006
Good Maintenance Practices - Section 2 - Bullet 3Inspection of wheel bearings and grease seals.
Thickness1.142 in (29 mm)
Good Maintenance Practices - Section 2 - Bullet 4Parking brake adjustments (as needed).
Rear Brake TypeVarious - Application Specific
Bolt Circle Diameter5.5 in (139.7 mm)
Programming RequiredNo
Discard Thickness1.07
Good Maintenance Practices - Section 2 - Bullet 1Inspection of the brake hoses for brittleness or cracking.
Outside Diameter (Mm)304.8
Good Maintenance Practices - Section 2 - Bullet 2Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Includes Abs Sensor RingNo
Good Maintenance Practices - Section 2 - HeaderThe following should be conducted by a qualified technician:
Max Bolt Hole Diameter (Mm)78.74
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 1Vehicle pulls to the left or right when brakes are applied.
Faq - Answer 1Yes, ACDelco also offers GM OE brake rotor and Advantage brake rotors.
Features &#38; Benefits - Bullet 6Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Features &#38; Benefits - Bullet 2Coated rotors will remain cleaner longer than non-coated
Bolt Hole Quantity6
Features &#38; Benefits - Bullet 3Protective micron-thin layer helps to inhibit environmental corrosion better than non-coated roated rotors; proved in up to 200 hours of industry-standard salt-spray testing
Grade TypeRegular
Features &#38; Benefits - Bullet 4Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Features &#38; Benefits - Bullet 5Premium aftermarket replacement part
Height (Mm)58.3
Features &#38; Benefits - Bullet 1COOL SHIELD coating - entire rotor surface including edges and vanes have baked-on zinc coating for durability and long lasting protection compared to uncoated
Mounting Bolt Hole Diameter0.635
Solid Or Vented Type RotorVented
Good Maintenance Practices - Section 1 - HeaderThe following inspections and maintenance procedures can help prevent potential brake problems:
MaterialCast Iron
Height (In)2.3
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 2Visible ridges or deep grooves on the rotor surface.
Rust Resistant CoatingYes
SlottedNo
Conventional Or Drum-In-Hat Type RotorConventional
Part FitmentDirect Fit
Nominal Thickness29
Faq - Question 1Does ACDelco offer other grades of brake rotors?
Vendor Part Number18A925
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
