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1981 Pontiac Firebird

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ACDelco 18A57 Disc Brake Rotor and Hub Assembly
for 1981 Pontiac Firebird

ACDelco 18A57 Disc Brake Rotor and Hub Assembly - 1981 Pontiac Firebird Image 1
ACDelco 18A57 Disc Brake Rotor and Hub Assembly - 1981 Pontiac Firebird Image 2
ACDelco 18A57 Disc Brake Rotor and Hub Assembly - 1981 Pontiac Firebird Image 3
ACDelco 18A57 Disc Brake Rotor and Hub Assembly - 1981 Pontiac Firebird Image 4
ACDelco 18A57 Disc Brake Rotor and Hub Assembly - 1981 Pontiac Firebird Image 5
ACDelco 18A57 Disc Brake Rotor and Hub Assembly - 1981 Pontiac Firebird

ACDelco
Brand:ACDelco
Part Number: 18A57
UPC: 00707773317891
Weight: 24 lbs
Condition:New



On Sale:

$80.20

Availability:
1 in Stock
Warehouse: US-12
Quantity:

Product Information

Description:

ROTOR ASM FRT

ACDelco Gold (Professional) Black Hat Disc Brake Rotor and Hub Assemblies 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

Features and Benefits:

  • 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

Specifications:

ABS Tone Ring Included:
No
Bearings Included:
Yes
Bolt Circle Diameter (in):
4.75 in
Bolt Circle Diameter (mm):
120.6 mm
Bolt Thread Pitch:
0.787 in.
Bolt Thread Pitch:
20 mm
Construction:
Full Cast
Directional or Non-Directional Brake Surface:
Non-Directional
Discard Thickness:
0.965 in.
Discard Thickness:
24.5 mm
Grade Type:
Regular
Height (in):
4.9 in
Hub Attached:
Yes
Inside Diameter:
177.8 mm
Inside Diameter:
7 in.
Length (in):
11.6 in
Material:
Cast Iron
Mounting Bolt Hole Circle Diameter:
120.65 mm
Mounting Bolt Hole Circle Diameter:
4.75 in.
Mounting Bolt Hole Diameter:
0.535 in.
Mounting Bolt Hole Diameter:
13.6 mm
Mounting Bolt Hole Quantity:
5
Nominal Thickness:
1.035 in.
Nominal Thickness:
26.3 mm
Outside Diameter (in):
11 in
Outside Diameter (mm):
279.4 mm
Overall Height:
117.6 mm
Overall Height:
4.63 in.
Programming Required:
No
Rotor Outside Diameter:
11 in.
Rotor Outside Diameter:
279.700 mm
Solid Or Vented Type Rotor:
Vented
Stud Quantity:
5
Stud/Lug Hole Quantity:
5
Weight (lb):
24 lb
Width (in):
11.6 in
Country of Origin:
CN

ACDelco 18A57 Disc Brake Rotor and Hub Assembly compatibility with your 1981 Pontiac Firebird...

Last Updated: 03/03/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

1981

 

1981

 
Pontiac Firebird

4.3L V8 Gas OHV
2
 
Front
 
Gold-Black Hat
 

Pontiac Firebird



4.3L V8 Gas OHV

Front Gold-Black Hat

2 Per Vehicle

1981

 

1980

 

1981

 

1980

 
Pontiac Firebird

4.9L V8 Gas OHV Turbo
2
 
Front
 
Gold-Black Hat
 

Pontiac Firebird



4.9L V8 Gas OHV Turbo

Front Gold-Black Hat

2 Per Vehicle

1981

 

1980

 

1979

 

1981

 

1980

 

1979

 
Pontiac Firebird

3.8L V6 Gas OHV,
4.9L V8 Gas OHV,
5.0L V8 Gas OHV
2
 
Front
 
Gold-Black Hat
 

Pontiac Firebird



3.8L V6 Gas OHV,
4.9L V8 Gas OHV,
5.0L V8 Gas OHV

Front Gold-Black Hat

2 Per Vehicle

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