ACDelco 18A1207A | Rear Disc Brake Rotor

Part Number
Rear Brake Rotor

Fits: 02-09 Chevrolet Trailblazer, 02-06 Chevrolet Trailblazer EXT, 02-09 GMC Envoy, 02-06 GMC Envoy XL, 02-04 Oldsmobile Bravada, 03-06 Chevrolet SSR, 03-08 Isuzu Ascender, 04-07 Buick Rainier, 04-05 GMC Envoy XUV, 05-09 Saab 9-7x

Special Price $54.39 Regular Price $63.99
In stock
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Estimated Ship Date: 1 Business Day or Less
ACDelco Silver (Advantage) Disc Brake Rotors 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 -



  • Buick;Chevrolet;GMC;Isuzu;Oldsmobile;Saab
  • Economical value with dependable quality
  • For General Motors vehicles as well as most makes and models
  • Some ACDelco Silver parts may have formerly appeared as ACDelco Advantage


Bolt Circle Diameter (in)5
Bolt Circle Diameter (mm)127
Bolt Hole Quantity6
Center Bore Diameter (in)3.1 in
Center Bore Diameter (mm)78.7 mm
ConstructionFull Cast
Disc FinishNon-Directional
Grade TypeRegular
Hat FinishPlain
Height (in)3.4
Height (mm)86.4
Length (in)13.12
MaterialCast Iron
Programming RequiredNo
Rust Resistant CoatingNo
Solid Or Vented Type RotorVented
Surface TypeSmooth
Weight (lb)18.5
Width (in)13.12



  • 2004-2005 GMC Envoy XUV - Position: Rear
  • 2002-2006 Chevrolet Trailblazer EXT - Position: Rear
  • 2005-2009 Saab 9-7x - Position: Rear
  • 2002-2009 GMC Envoy - Position: Rear
  • 2004-2007 Buick Rainier - Position: Rear
  • 2003-2006 Chevrolet SSR - Position: Rear
  • 2002-2006 GMC Envoy XL - Position: Rear
  • 2002-2009 Chevrolet Trailblazer - Position: Rear
  • 2002-2004 Oldsmobile Bravada - Position: Rear
  • 2003-2008 Isuzu Ascender - 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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