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- Rear Drum In-Hat Disc Brake Rotor
Part TypeBrake Rotor
BrandACDELCO
Package Height6.0
Package Width13.1
Package Length13.1
Weight30.0 PG
Weight29.8
Part CategoryReplacement Parts
Overall Height5.2
Number Of Lugs8
Programming RequiredNo
Disc ConstructionVented
Discard Thickness28.5
Center Bore Diameter (Mm)122.8mm
Max Center Hole Diameter4.83 in (122.682 mm)
Abs Sensor Ring IncludedNo
Overall Rotor Diameter (Mm)325.12mm
Center Bore Diameter (In)4.8in
Center Hole Diameter4.84
Pad Contact Surface Width (Mm)48.75
Center Hole Diameter (Mm)122.68
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)30.099
Features & Benefits - Bullet 2Black coating on hat and vanes
Disc FinishGround
Bolt Hole Quantity8
Features & Benefits - Bullet 3Quality validated for proper metallurgy and correct brake plate thickness
Overall Rotor Diameter12.8 in (325.1 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)165.1
Discard Thickness (Mm)28.498
Stud/Lug Hole Quantity8
Overall Height (Mm)132.08
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 Quantity8
PositionRear
Height (Mm)132.1
Bolt Circle Diameter (Mm)165.1
Features &#38; Benefits - Bullet 1Cross drilled for quick brake response and heat dissipation
Pitch Circle Diameter6.5 in (165.1 mm)
Mounting Bolt Hole Diameter0.66
ConstructionFull Cast
Solid Or Vented Type RotorVented
Thickness (Mm)30.099
Thickness1.185 in (30.1 mm)
Width (In)13.1
Bolt Circle Diameter6.5 in (165.1 mm)
MaterialCast Iron
Pad Contact Surface Width48.75
Hat FinishTurned
Outside Diameter (Mm)325.12
Includes Abs Sensor RingNo
Mounting Bolt Hole Circle Diameter165.1
Height (In)5.2
Max Bolt Hole Diameter (Mm)122.68
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)6.5
Part FitmentDirect Fit
Outside Diameter12.8
Nominal Thickness1.185
Vendor Part Number18A1417
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
