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Please, add your first item to the wishlist

Select vehicle to confirm fitment

Disc Brake Rotor – Rear

PART#: 18A2331
ACDelco

$34.95

In stock

Fitments
YearMakeModelSubmodelEngineFuel TypePositionNote
2015AcuraILXBase2.0L4GASRear
2015AcuraILXBase2.4L4GASRear
2015HondaCivicEX-L1.8L4GASRearRotor Diameter 260mm
2015HondaCivicSi2.4L4GASRearRotor Diameter 260mm
2015HondaCivicEX1.8L4GASRearRotor Diameter 260mm | Coupe;
2014AcuraILXBase2.4L4GASRear
2014AcuraILXBase2.0L4GASRear
2014AcuraILXHybrid1.5L4FULL HYBRID EV-GAS (FHEV)Rear
2014HondaCivicSi2.4L4GASRear
2014HondaCivicEX-L1.8L4GASRear
2014HondaCivicEX1.8L4GASRear
2013AcuraILXBase2.4L4GASRear
2013AcuraILXHybrid1.5L4FULL HYBRID EV-GAS (FHEV)Rear
2013AcuraILXBase2.0L4GASRear
2013HondaCivicLX1.8L4GASRear
2013HondaCivicEX1.8L4GASRear
2013HondaCivicSi2.4L4GASRear
2013HondaCivicEX-L1.8L4GASRear
2012HondaCivicEX-L1.8L4GASRear
2012HondaCivicEX1.8L4GASRear
2012HondaCivicSi2.4L4GASRear
2011HondaCivicLX1.8L4GASRear | Rear Brake Type: Disc;
2011HondaCivicEX-L1.8L4GASRear
2011HondaCivicSi2.0L4GASRear
2011HondaCivicHybrid-L1.3L4FULL HYBRID EV-GAS (FHEV)Rear
2011HondaCivicEX1.8L4GASRear
2010HondaCivicEX1.8L4GASRear
2010HondaCivicLX-S1.8L4GASRear
2010HondaCivicSi2.0L4GASRear
2010HondaCivicGX1.8L4CNGRear
2010HondaCivicHybrid1.3L4FULL HYBRID EV-GAS (FHEV)Rear
2010HondaCivicEX-L1.8L4GASRear
2010HondaCivicHybrid-L1.3L4FULL HYBRID EV-GAS (FHEV)Rear
2010HondaCivicDX1.8L4GASRear
2010HondaCivicLX1.8L4GASRear
2009HondaCivicLX1.8L4GASRear
2009HondaCivicEX-L1.8L4GASRear
2009HondaCivicEX1.8L4GASRear
2009HondaCivicSi2.0L4GASRear
2009HondaCivicDX1.8L4GASRear
2009HondaCivicLX-S1.8L4GASRear
2009HondaCivicGX1.8L4CNGRear
2009HondaCivicHybrid1.3L4FULL HYBRID EV-GAS (FHEV)Rear
2009HondaCivicHybrid-L1.3L4FULL HYBRID EV-GAS (FHEV)Rear
2008HondaCivicDX1.8L4GASRear
2008HondaCivicEX1.8L4GASRear
2008HondaCivicLX1.8L4GASRear
2008HondaCivicSi2.0L4GASRear
2008HondaCivicGX1.8L4CNGRear
2008HondaCivicMUGEN Si2.0L4GASRear
2008HondaCivicHybrid1.3L4FULL HYBRID EV-GAS (FHEV)Rear
2007HondaCivicEX1.8L4GASRear
2007HondaCivicSi2.0L4GASRear
2006HondaCivicEX1.8L4GASRear
2006HondaCivicSi2.0L4GASRear
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
2.5
4.5
ABS Tone Ring IncludedNo
Bolt Circle Diameter (in)4.5
Bolt Circle Diameter (mm)114.3
Bolt Hole Quantity5
Center Bore Diameter (in)2.5in
Center Bore Diameter (mm)64.2mm
Center Hole Diameter2.524
Center Hole Diameter64.1
ConstructionFull Cast
Conventional Or Drum-In-Hat Type RotorConventional
Directional or Non-Directional Brake SurfaceNo
Disc FinishGround
Discard Thickness0.315
Discard Thickness8
Features & Benefits - Bullet 1Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
Features & Benefits - Bullet 2Premium aftermarket replacement part
Features & Benefits - Bullet 3Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
Grade TypeRegular
Hat FinishTurned
Height1.7
Height (in)1.7
Height (mm)42
Length (in)10.62
MaterialCast Iron
Mounting Bolt Hole Circle Diameter114.3
Mounting Bolt Hole Circle Diameter4.5
Mounting Bolt Hole Diameter0.495
Mounting Bolt Hole Diameter12.55
Mounting Bolt Hole Quantity5
Nominal Thickness0.353
Nominal Thickness8.95
Outside Diameter10.2
Outside Diameter10.234
Outside Diameter259.95
Overall Height1.658
Overall Height42.1
Overall Rotor Diameter (mm)259.84mm
Pad Contact Surface Width1.7
Pad Contact Surface Width43.15
Product DescriptionACDelco Gold (Professional) Black Hat Disc Brake Rotors are a high quality alternative to Original Equipment (OE) parts. 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)7.4
Width (in)10.62
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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