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- Performance Rear Disc Brake Rotor Assembly for Severe Duty
Part TypeBrake Rotor
BrandACDELCO
Package Height2.3
Package Width12.3
Package Length12.3
Weight22.0 PG
Center Bore Diameter (Mm)71.8mm
Overall Rotor Diameter (Mm)305.31mm
Center Bore Diameter (In)2.8in
Number Of Lugs5
Center Hole Diameter71.8
Disc ConstructionVented
Good Maintenance Practices - Section 1 - Bullet 5The following inspections and maintenance procedures can help prevent potential brake problems:
Max Center Hole Diameter2.83 in (71.882 mm)
Abs Sensor Ring IncludedNo
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)114.3
Pad Contact Surface Width (Mm)62.1
Center Hole Diameter (Mm)71.88
ConstructionFull Cast
Pad Contact Surface Width62.1
Hat FinishTurned
Nominal Thickness (Mm)28.064
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 11Vehicle pulls to the left or right when brakes are applied.
Mounting Bolt Hole Circle Diameter114.3
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 10Braking causes the pedal and/or steering wheel to pulsate/vibrate (not to be confused with normal ABS operation.
Abs Tone Ring IncludedNo
Pitch Circle Diameter (Mm)114.3
Surface TypeSmooth
Bolt Circle Diameter (In)4.5
Discard Thickness (Mm)26.339
Outside Diameter305
Overall Height (Mm)44.96
Part CategoryReplacement Parts
PositionVarious - Application Specific
Overall Height1.772
Programming RequiredNo
Good Maintenance Practices - Section 2 - Bullet 5The following should be conducted by a qualified technician:
Pitch Circle Diameter4.5 in (114.3 mm)
Good Maintenance Practices - Section 2 - Bullet 6Inspection of the brake hoses for brittleness or cracking.
Discard Thickness26.4
Features &#38; Benefits - Bullet 6Premium aftermarket replacement part
Thickness (Mm)28.064
Features &#38; Benefits - Bullet 7Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Thickness1.105 in (28.1 mm)
Bolt Circle Diameter4.5 in (114.3 mm)
Features &#38; Benefits - Bullet 2Damped iron metallurgy reduces noise and dissipates heat
Bolt Hole Quantity5
Features &#38; Benefits - Bullet 3Non-directional rotation eliminates the need for unique left and right designations
Outside Diameter (Mm)305.2
Features &#38; Benefits - Bullet 4Mill balanced to reduce vibration
Includes Abs Sensor RingNo
Features &#38; Benefits - Bullet 5Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Height (Mm)45
Max Bolt Hole Diameter (Mm)71.88
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 - Bullet 8Inspect 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 9Check the thickness of your brake pads.
Grade TypePerformance
MaterialCast Iron
Good Maintenance Practices - Section 1 - Bullet 6Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
Good Maintenance Practices - Section 1 - Bullet 7Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 6Visible ridges on rotor surface.
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 7Chirping, grinding, or squeaking noises when braking.
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 8Difficulty stopping the vehicle.
Height (In)1.8
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 9A low or sinking brake pedal.
Faq - Question 5No, but it is a good idea to inspect your brake rotors at each tire rotation.
Rust Resistant CoatingYes
SlottedYes
Signs Of Wear &#38; Troubleshooting - Section 1 - Bullet 5Brake rotor signs of wear include:
Conventional Or Drum-In-Hat Type RotorConventional
Part FitmentDirect Fit
Good Maintenance Practices - Section 2 - Bullet 7Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
Faq - Question 4No, but it is a good idea to inspect them for wear-out, cracking, leaking etc.
Good Maintenance Practices - Section 2 - Bullet 8Inspection of wheel bearings and grease seals.
Nominal Thickness28.2
Good Maintenance Practices - Section 2 - Bullet 9Parking brake adjustments (as needed).
Vendor Part Number18A1213SD
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
