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Disc Brake Rotor – Rear

PART#: 18A811
ACDelco
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Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear
Disc Brake Rotor - Rear

$46.95

Select vehicle to confirm fitment

In stock

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