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Please, add your first item to the wishlist

Select vehicle to confirm fitment

Disc Brake Rotor – Rear

PART#: 18A811
ACDelco

$38.95

In stock

Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
2005BuickCenturySpecial Edition3.1V6GASRear | FWD;
2005BuickCenturyCustom3.1V6GASRear | FWD;
2005BuickCenturyLimited3.1V6GASRear | FWD;
2005ChevroletImpalaSS3.8V6GASRear | FWD;
2005ChevroletImpalaBase3.8V6GASRear | FWD;
2005ChevroletImpalaLS3.8V6GASRear | FWD;
2005ChevroletImpalaPolice3.8V6GASRear | FWD;
2005ChevroletImpalaBase3.4V6GASRear | FWD;
2005ChevroletMonte CarloSS3.8V6GASRear | FWD;
2005ChevroletMonte CarloLS3.4V6GASRear | FWD;
2005ChevroletMonte CarloLT3.8V6GASRear | FWD;
2005ChevroletVentureLS3.4V6GASRear | FWD;
2005ChevroletVenturePlus3.4V6GASRear | FWD;
2005ChevroletVentureLT3.4V6GASRear | FWD;
2005PontiacGrand AmSE3.4V6GASRear | FWD;
2005PontiacGrand AmGT13.4V6GASRear | FWD;
2005PontiacGrand AmGT3.4V6GASRear | FWD;
2005PontiacGrand AmSE2.2L4GASRear | FWD;
2004BuickCenturyLimited3.1V6GASRear | FWD;
2004BuickCenturyCustom3.1V6GASRear | FWD;
2004BuickRegalLS3.8V6GASRear | FWD;
2004BuickRegalGS3.8V6GASRear | FWD;
2004ChevroletImpalaLS3.8V6GASRear | FWD;
2004ChevroletImpalaBase3.8V6GASRear | FWD;
2004ChevroletImpalaSS3.8V6GASRear | FWD;
2004ChevroletImpalaPolice3.8V6GASRear | FWD;
2004ChevroletImpalaBase3.4V6GASRear | FWD;
2004ChevroletMonte CarloSS3.8V6GASRear | FWD;
2004ChevroletMonte CarloLS3.4V6GASRear | FWD;
2004ChevroletVenturePlus3.4V6GASRear | FWD;
2004ChevroletVentureLS3.4V6GASRear | AWD; | FWD;
2004ChevroletVentureLT3.4V6GASRear | AWD; | FWD;
2004OldsmobileAleroGL2.2L4GASRear | FWD;
2004OldsmobileAleroGLS3.4V6GASRear | FWD;
2004OldsmobileAleroGX2.2L4GASRear | FWD;
2004OldsmobileAleroGL3.4V6GASRear | FWD;
2004PontiacGrand AmGT3.4V6GASRear | FWD;
2004PontiacGrand AmSE23.4V6GASRear | FWD;
2004PontiacGrand AmSE2.2L4GASRear | FWD;
2004PontiacGrand AmSE13.4V6GASRear | FWD;
2004PontiacGrand AmSE3.4V6GASRear | FWD;
2004PontiacGrand AmGT13.4V6GASRear | FWD;
2004PontiacGrand AmSE12.2L4GASRear | FWD;
2003BuickCenturyCustom3.1V6GASRear | FWD;
2003BuickRegalLS3.8V6GASRear | FWD;
2003BuickRegalGS3.8V6GASRear | FWD;
2003ChevroletImpalaBase3.8V6GASRear | FWD;
2003ChevroletImpalaLS Sport3.8V6GASRear | FWD;
2003ChevroletImpalaPolice3.8V6GASRear | FWD;
2003ChevroletImpalaLS3.8V6GASRear | FWD;
2003ChevroletImpalaBase3.4V6GASRear | FWD;
2003ChevroletMonte CarloLS Sport3.4V6GASRear | FWD;
2003ChevroletMonte CarloLS Competition3.4V6GASRear | FWD;
2003ChevroletMonte CarloLS3.4V6GASRear | FWD;
2003ChevroletMonte CarloSS Pace Car3.8V6GASRear | FWD;
2003ChevroletMonte CarloSS High Sport3.8V6GASRear | FWD;
2003ChevroletMonte CarloSS3.8V6GASRear | FWD;
2003ChevroletVentureValue3.4V6GASRear | FWD;
2003ChevroletVentureLS3.4V6GASRear | AWD; | FWD;
2003ChevroletVenturePlus3.4V6GASRear | FWD;
2003ChevroletVentureLT3.4V6GASRear | AWD; | FWD;
2003ChevroletVentureWarner Bros.3.4V6GASRear | AWD; | FWD;
2003OldsmobileAleroGX2.2L4GASRear | FWD;
2003OldsmobileAleroGL3.4V6GASRear | FWD;
2003OldsmobileAleroGL2.2L4GASRear | FWD;
2003OldsmobileAleroGLS3.4V6GASRear | FWD;
2003OldsmobileAleroGLS2.2L4GASRear | FWD;
2003PontiacGrand AmSE2.2L4GASRear | FWD;
2003PontiacGrand AmGT3.4V6GASRear | FWD;
2003PontiacGrand AmSE13.4V6GASRear | FWD;
2003PontiacGrand AmSE23.4V6GASRear | FWD;
2003PontiacGrand AmSE12.2L4GASRear | FWD;
2003PontiacGrand AmSE3.4V6GASRear | FWD;
2003PontiacGrand AmGT13.4V6GASRear | FWD;
2003PontiacGrand PrixSE3.1V6GASRear | FWD;
2003PontiacGrand PrixGTP3.8V6GASRear | FWD;
2003PontiacGrand PrixGT3.8V6GASRear | FWD;
2002BuickCenturyCustom3.1V6GASRear | FWD;
2002BuickCenturyLimited3.1V6GASRear | FWD;
2002BuickRegalLS3.8V6GASRear | FWD;
2002BuickRegalGS3.8V6GASRear | FWD;
2002ChevroletImpalaBase3.4V6GASRear | FWD;
2002ChevroletImpalaBase3.8V6GASRear | FWD;
2002ChevroletImpalaLS3.8V6GASRear | FWD;
2002ChevroletMonte CarloLS3.4V6GASRear | FWD;
2002ChevroletMonte CarloSS 35th Anniversary Edition3.8V6GASRear | FWD;
2002ChevroletMonte CarloSS Dale Earnhardt Signature Edition3.8V6GASRear | FWD;
2002ChevroletMonte CarloSS3.8V6GASRear | FWD;
2002ChevroletVentureValue3.4V6GASRear | FWD;
2002ChevroletVentureBase3.4V6GASRear | FWD;
2002ChevroletVenturePlus3.4V6GASRear | FWD;
2002ChevroletVentureLS3.4V6GASRear | AWD; | FWD;
2002ChevroletVentureLT3.4V6GASRear | AWD; | FWD;
2002ChevroletVentureWarner Bros.3.4V6GASRear | AWD; | FWD;
2002OldsmobileAleroGL2.2L4GASRear | FWD;
2002OldsmobileAleroGX3.4V6GASRear | FWD;
2002OldsmobileAleroGX2.2L4GASRear | FWD;
2002OldsmobileAleroGLS3.4V6GASRear | FWD;
2002OldsmobileAleroGL3.4V6GASRear | FWD;
2002OldsmobileAleroGLS2.2L4GASRear | FWD;
2002OldsmobileIntrigueGL3.5V6GASRear | FWD;
2002OldsmobileIntrigueGLS3.5V6GASRear | FWD;
2002OldsmobileIntrigueGX3.5V6GASRear | FWD;
2002PontiacGrand AmSE3.4V6GASRear | FWD;
2002PontiacGrand AmSE13.4V6GASRear | FWD;
2002PontiacGrand AmSE12.2L4GASRear | FWD;
2002PontiacGrand AmGT13.4V6GASRear | FWD;
2002PontiacGrand AmSE2.2L4GASRear | FWD;
2002PontiacGrand AmGT3.4V6GASRear | FWD;
2002PontiacGrand PrixSE3.8V6GASRear | FWD;
2002PontiacGrand PrixSE3.1V6GASRear | FWD;
2002PontiacGrand PrixGT3.8V6GASRear | FWD;
2002PontiacGrand PrixGTP3.8V6GASRear | FWD;
2001BuickCenturyCustom3.1V6GASRear | FWD;
2001BuickCenturyLimited3.1V6GASRear | FWD;
2001BuickRegalLS3.8V6GASRear | FWD;
2001BuickRegalGS3.8V6GASRear | FWD;
2001ChevroletImpalaBase3.4V6GASRear | FWD;
2001ChevroletImpalaBase3.8V6GASRear | FWD;
2001ChevroletImpalaLS3.8V6GASRear | FWD;
2001ChevroletMonte CarloSS3.8V6GASRear | FWD;
2001ChevroletMonte CarloLS3.4V6GASRear | FWD;
2001ChevroletVenturePlus3.4V6GASRear | FWD;
2001ChevroletVentureLS3.4V6GASRear | FWD;
2001ChevroletVentureWarner Bros.3.4V6GASRear | FWD;
2001ChevroletVentureValue3.4V6GASRear | FWD;
2001ChevroletVentureLT3.4V6GASRear | FWD;
2001OldsmobileAleroGLS3.4V6GASRear | FWD;
2001OldsmobileAleroGL2.4L4GASRear | FWD;
2001OldsmobileAleroGL3.4V6GASRear | FWD;
2001OldsmobileAleroGX3.4V6GASRear | FWD;
2001OldsmobileAleroGLS2.4L4GASRear | FWD;
2001OldsmobileAleroGX2.4L4GASRear | FWD;
2001OldsmobileIntrigueGLS3.5V6GASRear | FWD;
2001OldsmobileIntrigueGX3.5V6GASRear | FWD;
2001OldsmobileIntrigueGL3.5V6GASRear | FWD;
2001PontiacGrand AmGT3.4V6GASRear | FWD;
2001PontiacGrand AmSE13.4V6GASRear | FWD;
2001PontiacGrand AmSE12.4L4GASRear | FWD;
2001PontiacGrand AmSE2.4L4GASRear | FWD;
2001PontiacGrand AmSE3.4V6GASRear | FWD;
2001PontiacGrand AmGT13.4V6GASRear | FWD;
2001PontiacGrand PrixGTP3.8V6GASRear | FWD;
2001PontiacGrand PrixSE3.8V6GASRear | FWD;
2001PontiacGrand PrixSE3.1V6GASRear | FWD;
2001PontiacGrand PrixGT3.8V6GASRear | FWD;
2001PontiacMontanaBase3.4V6GASRear | FWD;
2000BuickCenturyLimited3.1V6GASRear | FWD;
2000BuickCenturyCustom3.1V6GASRear | FWD;
2000BuickRegalGSE3.8V6GASRear | FWD;
2000BuickRegalLS3.8V6GASRear | FWD;
2000BuickRegalGS3.8V6GASRear | FWD;
2000BuickRegalLSE3.8V6GASRear | FWD;
2000ChevroletImpalaBase3.4V6GASRear | FWD;
2000ChevroletImpalaLS3.8V6GASRear | FWD;
2000ChevroletImpalaBase3.8V6GASRear | FWD;
2000ChevroletMonte CarloSS3.8V6GASRear | FWD;
2000ChevroletMonte CarloLS3.4V6GASRear | FWD;
2000ChevroletVentureBase3.4V6GASRear | FWD;
2000ChevroletVenturePlus3.4V6GASRear | FWD;
2000ChevroletVentureLS3.4V6GASRear | FWD;
2000ChevroletVentureLT3.4V6GASRear | FWD;
2000ChevroletVentureWarner Bros.3.4V6GASRear | FWD;
2000ChevroletVentureValue3.4V6GASRear | FWD;
2000OldsmobileAleroGL2.4L4GASRear | FWD;
2000OldsmobileAleroGLS3.4V6GASRear | FWD;
2000OldsmobileAleroGX3.4V6GASRear | FWD;
2000OldsmobileAleroGX2.4L4GASRear | FWD;
2000OldsmobileAleroGL3.4V6GASRear | FWD;
2000OldsmobileAleroGLS2.4L4GASRear | FWD;
2000OldsmobileIntrigueGLS3.5V6GASRear | FWD;
2000OldsmobileIntrigueGL3.5V6GASRear | FWD;
2000OldsmobileIntrigueGX3.5V6GASRear | FWD;
2000PontiacGrand AmSE2.4L4GASRear | FWD;
2000PontiacGrand AmGT3.4V6GASRear | FWD;
2000PontiacGrand AmSE23.4V6GASRear | FWD;
2000PontiacGrand AmSE3.4V6GASRear | FWD;
2000PontiacGrand AmSE13.4V6GASRear | FWD;
2000PontiacGrand AmSE22.4L4GASRear | FWD;
2000PontiacGrand AmGT13.4V6GASRear | FWD;
2000PontiacGrand AmSE12.4L4GASRear | FWD;
2000PontiacGrand PrixGTP3.8V6GASRear | FWD;
2000PontiacGrand PrixSE3.1V6GASRear | FWD;
2000PontiacGrand PrixSE3.8V6GASRear | FWD;
2000PontiacGrand PrixGT3.8V6GASRear | FWD;
2000PontiacMontanaBase3.4V6GASRear | FWD;
1999BuickCenturyLimited3.1V6GASRear | FWD;
1999BuickCenturyCustom3.1V6GASRear | FWD;
1999BuickRegalLS3.8V6GASRear | FWD;
1999BuickRegalGS3.8V6GASRear | FWD;
1999BuickRivieraBase3.8V6GASRear | FWD;
1999ChevroletVentureLS3.4V6GASRear | FWD;
1999ChevroletVentureBase3.4V6GASRear | FWD;
1999OldsmobileAleroGL2.4L4GASRear | FWD;
1999OldsmobileAleroGL3.4V6GASRear | FWD;
1999OldsmobileAleroGLS3.4V6GASRear | FWD;
1999OldsmobileAleroGX2.4L4GASRear | FWD;
1999OldsmobileAleroGLS2.4L4GASRear | FWD;
1999OldsmobileIntrigueGL3.8V6GASRear | FWD;
1999OldsmobileIntrigueGLS3.5V6GASRear | FWD;
1999OldsmobileIntrigueGX3.5V6GASRear | FWD;
1999OldsmobileIntrigueGX3.8V6GASRear | FWD;
1999OldsmobileIntrigueGL3.5V6GASRear | FWD;
1999PontiacGrand AmSE3.4V6GASRear | FWD;
1999PontiacGrand AmGT3.4V6GASRear | FWD;
1999PontiacGrand AmSE2.4L4GASRear | FWD;
1999PontiacGrand AmGT2.4L4GASRear | FWD;
1999PontiacGrand PrixGTP3.8V6GASRear | FWD;
1999PontiacGrand PrixGT3.8V6GASRear | FWD;
1999PontiacGrand PrixSE3.8V6GASRear | FWD;
1999PontiacGrand PrixSE3.1V6GASRear | FWD;
1999PontiacMontanaBase3.4V6GASRear | FWD;
1998BuickCenturyLimited3.1V6GASRear | FWD;
1998BuickCenturyCustom3.1V6GASRear | FWD;
1998BuickRegal25th Anniversary Edition3.8V6GASRear | FWD;
1998BuickRegalLS3.8V6GASRear | FWD;
1998BuickRegalGS3.8V6GASRear | FWD;
1998ChevroletVentureLS3.4V6GASRear | FWD;
1998ChevroletVentureBase3.4V6GASRear | FWD;
1998OldsmobileIntrigueBase3.8V6GASRear | FWD;
1998OldsmobileIntrigueGLS3.8V6GASRear | FWD;
1998OldsmobileIntrigueGL3.8V6GASRear | FWD;
1998PontiacGrand PrixSE3.1V6GASRear | FWD;
1998PontiacGrand PrixGTP3.8V6GASRear | FWD;
1998PontiacGrand PrixGT3.8V6GASRear | FWD;
1998PontiacGrand PrixSE3.8V6GASRear | FWD;
1998PontiacTrans SportBase3.4V6GASRear | FWD;
1998PontiacTrans SportMontana3.4V6GASRear | FWD;
1997BuickCenturyCustom3.1V6GASRear | FWD;
1997BuickCenturyLimited3.1V6GASRear | FWD;
1997BuickRegalLS3.8V6GASRear | FWD;
1997BuickRegalGS3.8V6GASRear | FWD;
1997PontiacGrand PrixSE3.1V6GASRear | FWD;
1997PontiacGrand PrixGT3.8V6GASRear | FWD;
1997PontiacGrand PrixSE3.8V6GASRear | FWD;
1997PontiacGrand PrixGTP3.8V6GASRear | FWD;
1997PontiacTrans SportBase3.4V6GASRear | FWD;
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.

When it comes to power generation, ACDelco alternators are second to none. Designed to withstand the challenges of daily driving, ACDelco alternators deliver consistent power output to keep your vehicle's electrical systems running smoothly. With ACDelco alternators from Newparts.com, you can count on reliable performance mile after mile.

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
2.8
4.6
ABS Tone Ring IncludedNo
Bolt Circle Diameter (in)4.6
Bolt Circle Diameter (mm)118
Bolt Hole Quantity5
Center Bore Diameter (in)2.8in
Center Bore Diameter (mm)70.7mm
Center Hole Diameter2.78
Center Hole Diameter70.6
ConstructionFull Cast
Conventional Or Drum-In-Hat Type RotorDrum-In-Hat
Directional or Non-Directional Brake SurfaceNo
Disc FinishGround
Discard Thickness0.354
Discard Thickness9
Features & Benefits - Bullet 1Cross drilled for quick brake response and heat dissipation
Features & Benefits - Bullet 2Black coating on hat and vanes
Features & Benefits - Bullet 3Quality validated for proper metallurgy and correct brake plate thickness
Features & Benefits - Bullet 4Tighter tolerances similar to GM OE specifications
Features & Benefits - Bullet 5Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
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
Grade TypeRegular
Hat FinishTurned
Height2
Height (in)2
Height (mm)50.3
Length (in)11.3
MaterialCast Iron
Mounting Bolt Hole Circle Diameter118
Mounting Bolt Hole Circle Diameter4.646
Mounting Bolt Hole Diameter0.636
Mounting Bolt Hole Diameter16.15
Mounting Bolt Hole Quantity5
Nominal Thickness0.435
Nominal Thickness11.05
Outside Diameter10.9
Outside Diameter10.94
Outside Diameter277.9
Overall Height1.98
Overall Height50.3
Overall Rotor Diameter (mm)277.88mm
Pad Contact Surface Width1.6
Pad Contact Surface Width41.9
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. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov
Programming RequiredNo
Rust Resistant CoatingYes
SlottedNo
Solid Or Vented Type RotorSolid
Stud/Lug Hole Quantity5
Surface TypeSmooth
Weight (lb)12
Width (in)12.3
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

Newparts.com is your go to store for all parts and accessories at the best price and delivered quickly. Every order we ship receives a tracking number so that you can watch it all the way until it reaches your door. We only ship using the major shipping carriers like FedEx, UPS and USPS to ensure quick and safe delivery of your new car parts order.

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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