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Please, add your first item to the wishlist

Select vehicle to confirm fitment

Disc Brake Rotor and Hub Assembly – Front

PART#: 18A3A
ACDelco

$68.95

In stock

Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
1978BuickEstate WagonBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978BuickEstate WagonBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978BuickEstate WagonBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978BuickLeSabreBase5.0V8GASFrontExc. Police & Taxi
1978BuickLeSabreBase4.9V8GASFrontExc. Police & Taxi
1978BuickLeSabreCustom5.7V8GASFrontExc. Police & Taxi
1978BuickLeSabreCustom5.0V8GASFrontExc. Police & Taxi
1978BuickLeSabreBase5.7V8GASFrontExc. Police & Taxi
1978BuickLeSabreCustom4.9V8GASFrontExc. Police & Taxi
1978BuickLeSabreCustom6.6V8GASFrontExc. Police & Taxi
1978BuickLeSabreBase6.6V8GASFrontExc. Police & Taxi
1978BuickSkylarkBase3.8V6GASFront
1978BuickSkylarkBase5.7V8GASFront
1978BuickSkylarkSport5.7V8GASFront
1978BuickSkylarkBase5.0V8GASFront
1978BuickSkylarkS3.8V6GASFront
1978BuickSkylarkS5.0V8GASFront
1978BuickSkylarkSport5.0V8GASFront
1978BuickSkylarkCustom3.8V6GASFront
1978BuickSkylarkSport3.8V6GASFront
1978BuickSkylarkCustom5.7V8GASFront
1978BuickSkylarkCustom5.0V8GASFront
1978ChevroletCamaroLT5.7V8GASFront
1978ChevroletCamaroBase5.7V8GASFront
1978ChevroletCamaroBase4.1L6GASFront
1978ChevroletCamaroBase5.0V8GASFront
1978ChevroletCamaroLT4.1L6GASFront
1978ChevroletCamaroLT Rally Sport5.0V8GASFront
1978ChevroletCamaroLT5.0V8GASFront
1978ChevroletCamaroLT Rally Sport5.7V8GASFront
1978ChevroletCamaroRally Sport4.1L6GASFront
1978ChevroletCamaroRally Sport5.0V8GASFront
1978ChevroletCamaroRally Sport5.7V8GASFront
1978ChevroletCamaroLT Rally Sport4.1L6GASFront
1978ChevroletCamaroZ285.7V8GASFront
1978ChevroletCapriceClassic4.1L6GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletCapriceClassic5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletCapriceClassic Estate5.0V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletCapriceClassic Estate5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletCapriceClassic Landau5.0V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletCapriceClassic Landau5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletCapriceClassic5.0V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletCapriceClassic Landau4.1L6GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletImpalaBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletImpalaBase5.0V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletImpalaBase4.1L6GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletImpalaLandau5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletImpalaLandau5.0V8GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletImpalaLandau4.1L6GASFrontwith 11-1/64in Diameter Rotor
1978ChevroletNovaRally5.0V8GASFront
1978ChevroletNovaCustom5.0V8GASFront
1978ChevroletNovaBase5.7V8GASFront
1978ChevroletNovaBase4.1L6GASFront
1978ChevroletNovaRally4.1L6GASFront
1978ChevroletNovaPolice5.7V8GASFront
1978ChevroletNovaBase5.0V8GASFront
1978ChevroletNovaRally5.7V8GASFront
1978ChevroletNovaCustom4.1L6GASFront
1978ChevroletNovaPolice4.1L6GASFront
1978ChevroletNovaCustom5.7V8GASFront
1978ChevroletNovaPolice5.0V8GASFront
1978OldsmobileCustom CruiserBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileCustom CruiserBase5.7V8DIESELFrontwith 11-1/64in Diameter Rotor
1978OldsmobileCustom CruiserBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Base4.3V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Base5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Base6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Base3.8V6GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Royale5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Base5.7V8DIESELFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Royale5.7V8DIESELFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Royale3.8V6GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Royale4.3V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileDelta 88Royale6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978OldsmobileOmegaSX5.7V8GASFront
1978OldsmobileOmegaBrougham5.7V8GASFront
1978OldsmobileOmegaBase5.0V8GASFront
1978OldsmobileOmegaBase3.8V6GASFront
1978OldsmobileOmegaSX5.0V8GASFront
1978OldsmobileOmegaBase5.7V8GASFront
1978OldsmobileOmegaBrougham LS3.8V6GASFront
1978OldsmobileOmegaSX3.8V6GASFront
1978OldsmobileOmegaBrougham5.0V8GASFront
1978OldsmobileOmegaBrougham LS5.7V8GASFront
1978OldsmobileOmegaBrougham3.8V6GASFront
1978OldsmobileOmegaBrougham LS5.0V8GASFront
1978PontiacBonnevilleBrougham5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBrougham6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBrougham6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBase4.9V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleSafari5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBrougham5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleBrougham4.9V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleSafari6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleSafari6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleSafari4.9V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacBonnevilleSafari5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaSafari6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaSafari5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaBase3.8V6GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaBase4.9V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaSafari4.9V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaSafari6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacCatalinaSafari5.7V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacFirebirdBase3.8V6GASFront
1978PontiacFirebirdBase5.0V8GASFront
1978PontiacFirebirdFormula5.0V8GASFront
1978PontiacFirebirdEsprit5.0V8GASFront
1978PontiacFirebirdBase5.7V8GASFront
1978PontiacFirebirdTrans Am6.6V8GASFront
1978PontiacFirebirdFormula6.6V8GASFront
1978PontiacFirebirdEsprit3.8V6GASFront
1978PontiacFirebirdEsprit5.7V8GASFront
1978PontiacFirebirdTrans Am6.6V8GASFront
1978PontiacFirebirdFormula6.6V8GASFront
1978PontiacFirebirdFormula5.7V8GASFront
1978PontiacPhoenixLJ5.7V8GASFront
1978PontiacPhoenixBase5.7V8GASFront
1978PontiacPhoenixBase2.5L4GASFront
1978PontiacPhoenixLJ3.8V6GASFront
1978PontiacPhoenixBase3.8V6GASFront
1978PontiacPhoenixBase5.0V8GASFront
1978PontiacPhoenixSJ3.8V6GASFront
1978PontiacPhoenixSJ5.0V8GASFront
1978PontiacPhoenixSJ5.7V8GASFront
1978PontiacPhoenixLJ5.0V8GASFront
1978PontiacPhoenixSJ2.5L4GASFront
1978PontiacPhoenixLJ2.5L4GASFront
1978PontiacGrand SafariBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1978PontiacGrand SafariBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1977BuickCenturyCustom6.6V8GASFront
1977BuickCenturyBase5.0V8GASFront
1977BuickCenturyCustom5.0V8GASFront
1977BuickCenturyCustom5.7V8GASFront
1977BuickCenturyCustom5.7V8GASFront
1977BuickCenturyCustom3.8V6GASFront
1977BuickCenturyBase5.7V8GASFront
1977BuickCenturyBase5.7V8GASFront
1977BuickCenturyBase3.8V6GASFront
1977BuickCenturyCustom5.7V8GASFront
1977BuickCenturyBase5.7V8GASFront
1977BuickCenturySpecial3.8V6GASFront
1977BuickEstate WagonBase6.6V8GASFrontwith 11-1/64in Diameter Rotor
1977BuickEstate WagonBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1977BuickLeSabreBase6.6V8GASFrontExc. Police & Taxi
1977BuickLeSabreBase5.7V8GASFrontExc. Police & Taxi
1977BuickLeSabreCustom6.6V8GASFrontExc. Police & Taxi
1977BuickLeSabreBase4.9V8GASFrontExc. Police & Taxi
1977BuickLeSabreCustom4.9V8GASFrontExc. Police & Taxi
1977BuickLeSabreCustom5.7V8GASFrontExc. Police & Taxi
1977BuickLeSabreCustom Sport4.9V8GASFrontExc. Police & Taxi
1977BuickLeSabreCustom Sport6.6V8GASFrontExc. Police & Taxi
1977BuickLeSabreCustom Sport5.7V8GASFrontExc. Police & Taxi
1977BuickRegalSR5.7V8GASFront
1977BuickRegalBase5.0V8GASFront
1977BuickRegalBase5.7V8GASFront
1977BuickRegalBase5.7V8GASFront
1977BuickRegalBase3.8V6GASFront
1977BuickRegalSR3.8V6GASFront
1977BuickRegalSR5.7V8GASFront
1977BuickRegalBase5.7V8GASFront
1977BuickRegalSR5.7V8GASFront
1977BuickRegalSR5.0V8GASFront
1977BuickSkylarkS5.0V8GASFront
1977BuickSkylarkS5.7V8GASFront
1977BuickSkylarkBase5.7V8GASFront
1977BuickSkylarkS4.9V8GASFront
1977BuickSkylarkBase5.0V8GASFront
1977BuickSkylarkSR3.8V6GASFront
1977BuickSkylarkBase5.7V8GASFront
1977BuickSkylarkBase3.8V6GASFront
1977BuickSkylarkS3.8V6GASFront
1977BuickSkylarkSR5.0V8GASFront
1977BuickSkylarkBase4.9V8GASFront
1977BuickSkylarkSR5.7V8GASFront
1977BuickSkylarkSR4.9V8GASFront
1977BuickSkylarkSR5.7V8GASFront
1977ChevroletCamaroLT Rally Sport5.7V8GASFront
1977ChevroletCamaroLT4.1L6GASFront
1977ChevroletCamaroLT Rally Sport5.0V8GASFront
1977ChevroletCamaroRally Sport5.0V8GASFront
1977ChevroletCamaroRally Sport5.7V8GASFront
1977ChevroletCamaroBase5.0V8GASFront
1977ChevroletCamaroZ285.7V8GASFront
1977ChevroletCamaroRally Sport4.1L6GASFront
1977ChevroletCamaroLT5.7V8GASFront
1977ChevroletCamaroLT5.0V8GASFront
1977ChevroletCamaroBase5.7V8GASFront
1977ChevroletCamaroLT Rally Sport4.1L6GASFront
1977ChevroletCamaroBase4.1L6GASFront
1977ChevroletCapriceClassic Landau4.1L6GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletCapriceClassic Estate5.0V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletCapriceClassic Landau5.7V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletCapriceClassic5.0V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletCapriceClassic5.7V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletCapriceClassic Estate5.7V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletCapriceClassic4.1L6GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletCapriceClassic Landau5.0V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletEl CaminoSS5.7V8GASFront
1977ChevroletEl CaminoConquista5.0V8GASFront
1977ChevroletEl CaminoClassic5.0V8GASFront
1977ChevroletEl CaminoBase5.7V8GASFront
1977ChevroletEl CaminoClassic5.7V8GASFront
1977ChevroletEl CaminoBase5.0V8GASFront
1977ChevroletEl CaminoConquista5.7V8GASFront
1977ChevroletEl CaminoBase4.1L6GASFront
1977ChevroletEl CaminoClassic4.1L6GASFront
1977ChevroletEl CaminoConquista4.1L6GASFront
1977ChevroletEl CaminoSS5.0V8GASFront
1977ChevroletImpalaBase5.0V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaCustom5.7V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaBase5.7V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaCustom5.0V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaBase4.1L6GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaCustom4.1L6GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaLandau5.7V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaLandau4.1L6GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletImpalaLandau5.0V8GASFrontwith 11-1/64in Diameter Rotor
1977ChevroletMalibuSport5.7V8GASFront
1977ChevroletMalibuBase5.7V8GASFront
1977ChevroletMalibuBase4.1L6GASFront
1977ChevroletMalibuBase5.0V8GASFront
1977ChevroletMalibuClassic5.7V8GASFront
1977ChevroletMalibuClassic Landau5.7V8GASFront
1977ChevroletMalibuClassic5.0V8GASFront
1977ChevroletMalibuClassic4.1L6GASFront
1977ChevroletMalibuSport4.1L6GASFront
1977ChevroletMalibuSport5.0V8GASFront
1977ChevroletMalibuClassic Sport5.7V8GASFront
1977ChevroletMalibuClassic Sport5.0V8GASFront
1977ChevroletMalibuClassic Landau5.0V8GASFront
1977ChevroletMalibuClassic Landau4.1L6GASFront
1977ChevroletMalibuClassic Sport4.1L6GASFront
1977ChevroletMonte CarloS5.7V8GASFront
1977ChevroletMonte CarloS5.0V8GASFront
1977ChevroletNovaPolice5.7V8GASFront
1977ChevroletNovaConcours5.7V8GASFront
1977ChevroletNovaConcours5.0V8GASFront
1977ChevroletNovaConcours4.1L6GASFront
1977ChevroletNovaRally5.0V8GASFront
1977ChevroletNovaBase5.7V8GASFront
1977ChevroletNovaRally5.7V8GASFront
About ACDelco

When it comes to top-notch auto parts, one brand that stands tall is ACDelco. Popular for its commitment to quality and innovation, ACDelco has been a trusted name in the automotive industry. At Newparts.com, we're proud to offer a wide selection of ACDelco auto parts, including ACDelco spark plugs, ACDelco alternators, and ACDelco air filters, and other ACDelco parts, all at discounted prices.

ACDelco spark plugs are engineered to deliver exceptional performance and reliability, ensuring optimal engine operation and fuel efficiency. Whether you're cruising down the highway or navigating city streets, you can trust ACDelco spark plugs to keep your engine firing on all cylinders.

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In addition to spark plugs and alternators, we also offer a range of ACDelco air filters to help keep your engine breathing clean, fresh air. ACDelco air filters are designed to trap dirt, dust, and other contaminants, preventing them from entering your engine and causing damage. With a high-quality ACDelco air filter from Newparts.com, you can enjoy improved engine performance and extended engine life.

At Newparts.com, we understand that getting the right parts quickly is essential. That's why we offer fast shipping on all ACDelco auto parts, so you can get back on the road with confidence. Plus, with our discounted prices, you can save big on the parts you need to keep your vehicle running smoothly. In case you want to purchase parts by phone, feel free to call us at 855-505-2886 and our customer service team will help you out. 

Whether you're in need of spark plugs, alternators, air filters, or any other ACDelco auto parts, Newparts.com has you covered. Shop our selection today and experience the quality and reliability of ACDelco for yourself.

Specifications
4.75
No
Yes
ABS Tone Ring IncludedNo
Bearings IncludedYes
Bolt Circle Diameter (in)4.75
Bolt Circle Diameter (mm)120.65
Bolt Thread Pitch0.787
Bolt Thread Pitch20
Brake Surface FinishDirectional
ConstructionFull Cast
Directional or Non-Directional Brake SurfaceNon-Directional
Discard Thickness0.965
Discard Thickness24.5
Features & Benefits - Bullet 1Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage
Features & Benefits - Bullet 2Economical value with dependable quality
Features & Benefits - Bullet 3For General Motors vehicles as well as most makes and models
Grade TypeRegular
Height (in)4.9
Hub AttachedYes
Includes ABS Sensor RingNo
Inside Diameter177.4
Inside Diameter6.984
Length (in)11.6
MaterialCast Iron
Meets or Exceeds Original Equipment Manufacture SpecificationsYes
Mounting Bolt Hole Circle Diameter120.65
Mounting Bolt Hole Circle Diameter4.75
Mounting Bolt Hole Diameter0.535
Mounting Bolt Hole Diameter13.6
Mounting Bolt Hole Quantity5
Nominal Thickness1.035
Nominal Thickness26.3
Outside Diameter11.00
Outside Diameter (in)11
Outside Diameter (mm)279.4
Overall Height177.8
Overall Height7
Product DescriptionACDelco Silver (Advantage) Disc Brake Rotor and Hub Assemblies are a quality, high value alternative for General Motors vehicles as well as most makes and models and are backed by General Motors. ACDelco Silver (Advantage) parts are a good choice for many vehicles on the road today. Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Programming RequiredNo
Rotor Outside Diameter11
Rotor Outside Diameter11.00
Rotor Outside Diameter279.4
Rust Resistant CoatingNo
Solid Or Vented Type RotorVented
Stud Quantity5
Stud/Lug Hole Quantity5
Weight (lb)26.3
Width (in)11.6
Warranty
We offer a 2-year warranty on all parts that we sell. If the part fails within 2 years of purchase, please contact us for instructions to replace it. The warranty does not cover normal wear and tear or improper installation. On many parts, we also offer Extend product protection, which is a way to add up to 3 additional years for 5 total years of worry free coverage. Select your preferred term length and you're covered!
Delivery & Returns

Delivery Info

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Returns Info

Newparts.com offers a thirty (30) day return for refund for all items purchased through Newparts.com. To qualify for return and refund, all items must be new and in their original manufacturers box. To initiate a return, please contact our customer service. This information is only a summary. Complete shipping and return policy information can be found in our web site policies.

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