Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Product Discontinued
Currently Unavailable
This product is no longer available. Please call customer service for assistance at 1-800-345-4545.
- Rear Drum In-Hat Disc Brake Rotor
Part TypeBrake Rotor
BrandACDELCO
Package Height4.15
Package Width13.12
Package Length13.12
Weight20.0 PG
Weight20
Part CategoryReplacement Parts
Overall Height85.1
Number Of Lugs6
Programming RequiredNo
Disc ConstructionVented
Discard Thickness18.5
Center Bore Diameter (Mm)78.7mm
Max Center Hole Diameter3.1 in (78.74 mm)
Abs Sensor Ring IncludedNo
Overall Rotor Diameter (Mm)324.87mm
Center Bore Diameter (In)3.1in
Center Hole Diameter3.1
Pad Contact Surface Width (Mm)43.75
Center Hole Diameter (Mm)78.74
Directional Or Non-Directional Brake SurfaceNon-Directional
Features & Benefits - Bullet 6Premium aftermarket replacement part
Features & Benefits - Bullet 7Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Nominal Thickness (Mm)20.066
Features & Benefits - Bullet 2Black coating on hat and vanes
Disc FinishGround
Bolt Hole Quantity6
Features & Benefits - Bullet 3Quality validated for proper metallurgy and correct brake plate thickness
Overall Rotor Diameter12.79 in (324.9 mm)
Features & Benefits - Bullet 4Tighter tolerances similar to GM OE specifications
Features & Benefits - Bullet 5Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Pitch Circle Diameter (Mm)139.7
Discard Thickness (Mm)18.491
Stud/Lug Hole Quantity6
Overall Height (Mm)85.09
Product DescriptionACDelco Gold (Professional) Non-Coated Disc Brake Rotor and Hub Assemblies are a 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 stop 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
Mounting Bolt Hole Quantity6
PositionRear
Height (Mm)85.1
Bolt Circle Diameter (Mm)139.7
Features &#38; Benefits - Bullet 1Cross drilled for quick brake response and heat dissipation
Pitch Circle Diameter5.5 in (139.7 mm)
Mounting Bolt Hole Diameter16.4
ConstructionFull Cast
Solid Or Vented Type RotorVented
Thickness (Mm)20.066
Thickness0.79 in (20.1 mm)
Width (In)13.1
Bolt Circle Diameter5.5 in (139.7 mm)
MaterialCast Iron
Pad Contact Surface Width1.7
Hat FinishTurned
Outside Diameter (Mm)325
Includes Abs Sensor RingNo
Mounting Bolt Hole Circle Diameter139.7
Height (In)3.4
Max Bolt Hole Diameter (Mm)78.74
Rust Resistant CoatingYes
SlottedNo
Length (In)13.1
Conventional Or Drum-In-Hat Type RotorDrum-In-Hat
Abs Tone Ring IncludedNo
Grade TypeRegular
Surface TypeSmooth
Bolt Circle Diameter (In)5.5
Part FitmentDirect Fit
Outside Diameter12.795
Nominal Thickness20.05
Vendor Part Number18A952
Package Qty1
Package TypeEA
No Questions
No Reviews
Some parts are not legal for use in California or other states with similar laws / regulations
