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2009 Chevrolet Impala

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ACDelco 18A2321 Disc Brake Rotor
for 2009 Chevrolet Impala

ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala Image 1
ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala Image 2
ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala Image 3
ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala Image 4
ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala Image 5
ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala Image 6
ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala Image 7
ACDelco 18A2321 Disc Brake Rotor - 2009 Chevrolet Impala

ACDelco
Brand:ACDelco
Part Number: 18A2321
UPC: 00707773422724
Weight: 11.2 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

ROTOR R. GM (GSMP)

ACDelco 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

Features and Benefits:

  • Black coating on hat and vanes
  • Cross drilled for quick brake response and heat dissipation
  • Manufactured to meet specifications for fit, form, and function for General Motors vehicles as well as most makes and models
  • Premium aftermarket replacement part
  • Quality validated for proper metallurgy and correct brake plate thickness
  • Some ACDelco Gold parts may have formerly appeared as ACDelco Professional
  • Tighter tolerances similar to GM OE specifications

Specifications:

ABS Tone Ring Included:
No
Bolt Circle Diameter (in):
4.5 in
Bolt Circle Diameter (mm):
115 mm
Bolt Hole Quantity:
5
Center Bore Diameter (in):
2.8in
Center Bore Diameter (mm):
70.7mm
Construction:
Full Cast
Conventional Or Drum-In-Hat Type Rotor:
Conventional
Directional or Non-Directional Brake Surface:
No Degrees Celsius, Centigrade
Disc Finish:
Turned
Discard Thickness:
0.35 in.
Discard Thickness:
8.9 mm
Grade Type:
Performance
Hat Finish:
Turned
Height (in):
2 in
Height (mm):
50.3 mm
Length (in):
12.2 in
Material:
Cast Iron
Mounting Bolt Hole Circle Diameter:
115.05 mm
Mounting Bolt Hole Circle Diameter:
4.53 in.
Mounting Bolt Hole Diameter:
0.557 in.
Mounting Bolt Hole Diameter:
14.15 mm
Nominal Thickness:
0.43 in.
Nominal Thickness:
10.9 mm
Outside Diameter:
10.9 in.
Outside Diameter:
277.9 mm
Overall Rotor Diameter (mm):
277.88mm
Pad Contact Surface Width:
1.5 in.
Pad Contact Surface Width:
38.25 mm
Programming Required:
No
Rust Resistant Coating:
Yes
Slotted:
No
Solid Or Vented Type Rotor:
Solid
Stud/Lug Hole Quantity:
5
Surface Type:
Smooth
Weight (lb):
11.2 lb
Width (in):
11.5 in
Country of Origin:
CN

ACDelco 18A2321 Disc Brake Rotor compatibility with your 2009 Chevrolet Impala...

Last Updated: 02/29/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

2010

 

2009

 

2008

 

2010

 

2009

 

2008

 
Chevrolet Impala

3.9L V6 Flex OHV
2
 
Rear
 
Gold-Black Hat
 

Chevrolet Impala



3.9L V6 Flex OHV

Rear Gold-Black Hat

2 Per Vehicle

2010

 

2009

 

2008

 

2007

 

2010

 

2009

 

2008

 

2007

 
Chevrolet Impala

3.5L V6 Gas OHV
2
 
Rear
 
Gold-Black Hat
 

Chevrolet Impala



3.5L V6 Gas OHV

Rear Gold-Black Hat

2 Per Vehicle

2010

 

2009

 

2008

 

2007

 

2006

 

2010

 

2009

 

2008

 

2007

 

2006

 
Chevrolet Impala

3.5L V6 Flex OHV
2
 
Rear
 
Gold-Black Hat
 

Chevrolet Impala



3.5L V6 Flex OHV

Rear Gold-Black Hat

2 Per Vehicle

2009

 

2008

 

2007

 

2006

 

2009

 

2008

 

2007

 

2006

 
Chevrolet Impala

5.3L V8 Gas OHV
2
 
Rear
 
Gold-Black Hat
 

Chevrolet Impala



5.3L V8 Gas OHV

Rear Gold-Black Hat

2 Per Vehicle

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