ACDelco 18A2484 | Rear Disc Brake Rotor

Part Number
Rear Brake Rotor

Fits: 06-11 Buick Lucerne, 06-11 Cadillac DTS

Special Price $54.39 Regular Price $63.99
In stock
Only 7 left
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Estimated Ship Date: 1 Business Day or Less
ACDelco 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 -



  • Buick;Cadillac
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Premium aftermarket replacement part
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional


Bolt Circle Diameter (in)4.52
Bolt Circle Diameter (mm)115
Bolt Hole Quantity5
ConstructionFull Cast
Hat FinishPainted
Height (in)2
Length (in)12
MaterialCast Iron
Overall Rotor Diameter (mm)291.85 mm
Programming RequiredNo
Weight (lb)13
Width (in)12.9



  • 2006-2011 Buick Lucerne - Position: Rear
  • 2009-2011 Cadillac DTS - Position: Rear
    • Except GM Brake Code J55 5 Stud Rotor
  • 2006-2008 Cadillac DTS - Position: Rear
    • GM Brake Code JL9 5 Stud Rotor
  • 2009-2009 Cadillac DTS - Position: Rear
Customer Questions
Does AC Delco make Ford parts?
No, AC Delco produces parts primarily for General Motors vehicles and does not make parts specifically for Ford vehicles.
Can I use AC Delco parts to replace OEM parts?
Yes, in most cases AC Delco parts can be used as a replacement for OEM parts. However, it's important to ensure that the parts are compatible with your specific make and model of vehicle.
What AC Delco oil filter do I need?
AC Delco offers a variety of oil filters that are compatible with different makes and models of vehicles. To determine which AC Delco oil filter you need, consult your vehicle's owner's manual or use our online filter lookup tool that matches the make, model, and year of your vehicle.
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