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  2. Auto Parts
  3. Brake System
  4. Drums and Rotors
  5. Brake Drum
  6. ACDelco 18B101 for 1985

ACDelco 18B101 Brake Drum
for 1985 (please select make/model)

ACDelco 18B101 Brake Drum - 1985 Image 1
ACDelco 18B101 Brake Drum - 1985 Image 2
ACDelco 18B101 Brake Drum - 1985 Image 3
ACDelco 18B101 Brake Drum - 1985 Image 4
ACDelco 18B101 Brake Drum - 1985

ACDelco
Brand:ACDelco
Part Number: 18B101
UPC: 00707773351932
Weight: 39.4 lbs
Condition:New



On Sale:

$75.34

Availability:
22 in Stock
Warehouse: US-4
Quantity:

Product Information

Description:

BRK DRUM (B)

ACDelco Professional Brake Drums are constructed with G3000 SAE qualified material for structural integrity and maximum service life. They are tested to ISO/TS 16949 quality system standards and validated for balance to provide better braking performance. Chamfer angle, vane configuration, and plate thickness all follow the OE design, making them a premium aftermarket replacement for your GM and non-GM vehicle. Also, no machining is required. ACDelco Professional Brake Drums are ready to be installed right out of the box. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Follows original manufacturers' designs for dispersing heat, helping to prolong pad and rotor life while reducing noise and vibration
  • Independently tested with Noise/Vibration/Harshness (NVH) and durability/wear testing; resulting in high quality and reliable products
  • Inspected for balance; resulting in smooth brake operation and noise reduction

Specifications:

ABS Tone Ring Included:
No
Bolt Circle Diameter (in):
6.5 in
Bolt Circle Diameter (mm):
165.1 mm
Bolt Hole Quantity:
8
Brake Surface Finish:
Turned
Center Bore Diameter (in):
4.63in
Center Bore Diameter (mm):
117.5mm
Depth:
3.7 in.
Depth:
94 mm
Discard Thickness (in):
11.24 in
Discard Thickness (mm):
285.5 mm
Grade Type:
Regular
Height (in):
7.4 in
Length (in):
11.24 in
Material:
Cast Iron
Maximum Brake Diameter (Discard):
285.5 mm
Mount Hole Diameter (in):
0.629in
Mount Hole Diameter (mm):
15.977mm
Nominal Drum Diameter:
0.443 in.
Nominal Drum Diameter:
11.25 mm
Outer Cooling Fins:
Yes
Outside Diameter:
0.524 in.
Outside Diameter:
13.3 mm
Programming Required:
No
Stud/Lug Hole Diameter:
0.621 in.
Stud/Lug Hole Diameter:
15.75 mm
Stud/Lug Hole Quantity:
8
Weight:
39.4 lb
Width (in):
14.9 in

Features and Benefits:

  • – Calipers and wheel cylinders should be checked every brake inspection and serviced or replaced as required.
  • – Check brake fluid level at every oil change. Replace fluid according to owner's manual recommendations.
  • – Check the thickness of your brake pads.
  • – Inspect the brake lines for rust, punctures, or visible leaks (You may be able to do this, but consult a qualified technician if necessary).
  • – Inspection of brake lining and pads for wear or contamination by brake fluid or grease.
  • – Inspection of the brake hoses for brittleness or cracking.
  • – Inspection of wheel bearings and grease seals.
  • – Parking brake adjustments (as needed).
  • The following inspections and maintenance procedures can help prevent potential brake problems:
  • The following should be conducted by a qualified technician:

Specifications:

Country of Origin:
CN

Select a vehicle to narrow ACDelco 18B101 Brake Drum fitment info!

Last Updated: 03/03/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

1986

 

1985

 

1986

 

1985

 
Chevrolet C20

4.3L V6 Gas OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet C20



4.3L V6 Gas OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Chevrolet C20

4.8L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet C20



4.8L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Chevrolet C20 Suburban

5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet C20 Suburban



5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Chevrolet K20

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet K20



4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1985

 

1985

 
Chevrolet K20

4.3L V6 Gas OHV,
5.0L V8 Gas OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet K20



4.3L V6 Gas OHV,
5.0L V8 Gas OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Chevrolet K20 Suburban

5.0L V8 Gas OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet K20 Suburban



5.0L V8 Gas OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
Chevrolet K20 Suburban

5.7L V8 Gas OHV,
6.2L V8 Diesel OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet K20 Suburban



5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1985

 

1985

 
Chevrolet K20 Suburban

7.4L V8 Gas OHV
2
 
Rear
 
Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes
 

Chevrolet K20 Suburban



7.4L V8 Gas OHV

Rear Professional
with 6-3/8in Wide Drums
11 5/32 X 2 3/4 Brake Shoe
Power Brakes

2 Per Vehicle

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 
Chevrolet P20

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV
2
 
Rear
 
Professional
with 11 IN Brakes
 

Chevrolet P20



4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

Rear Professional
with 11 IN Brakes

2 Per Vehicle

1986

 

1985

 

1986

 

1985

 
GMC C2500

4.3L V6 Gas OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC C2500



4.3L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
GMC C2500

4.8L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC C2500



4.8L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
GMC C2500 Suburban

5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC C2500 Suburban



5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
GMC K2500

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC K2500



4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

1985

 

1985

 
GMC K2500

4.3L V6 Gas OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC K2500



4.3L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1986

 

1985

 

1984

 

1983

 
GMC K2500 Suburban

5.7L V8 Gas OHV,
6.2L V8 Diesel OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC K2500 Suburban



5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 

1989

 

1988

 

1987

 

1986

 

1985

 

1984

 

1983

 
GMC P2500

5.7L V8 Gas OHV,
6.2L V8 Diesel OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC P2500



5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

1987

 

1986

 

1985

 

1984

 

1983

 

1987

 

1986

 

1985

 

1984

 

1983

 
GMC P2500

4.8L L6 Gas OHV
2
 
Rear
 
Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes
 

GMC P2500



4.8L L6 Gas OHV

Rear Professional
with 11 IN Brakes
with 6-3/8in Wide Drums
Power Brakes

2 Per Vehicle

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