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ACDelco 18B253 Brake Drum
for 1985 (please select make/model)

ACDelco 18B253 Brake Drum - 1985 Image 1
ACDelco 18B253 Brake Drum - 1985 Image 2
ACDelco 18B253 Brake Drum - 1985 Image 3
ACDelco 18B253 Brake Drum - 1985 Image 4
ACDelco 18B253 Brake Drum - 1985

ACDelco
Brand:ACDelco
Part Number: 18B253
UPC: 00707773990568
Weight: 58.4 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

DRUM ASMRR BRK

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:

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):
4.59in
Center Bore Diameter (mm):
116.7mm
Depth:
108.2 mm
Depth:
4.26 in.
Discard Thickness (in):
13.09 in
Discard Thickness (mm):
332.5 mm
Grade Type:
Regular
Height (in):
9 in
Length (in):
17.3 in
Material:
Cast Iron
Nominal Drum Diameter:
0.515 in.
Nominal Drum Diameter:
13.1 mm
Outer Cooling Fins:
Yes
Outside Diameter:
0.648 in.
Outside Diameter:
16.45 mm
Programming Required:
No
Stud/Lug Hole Diameter:
0.611 in.
Stud/Lug Hole Diameter:
15.5 mm
Stud/Lug Hole Quantity:
8
Weight:
58.4 lb
Width (in):
17.3 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:
US

Select a vehicle to narrow ACDelco 18B253 Brake Drum fitment info!

Last Updated: 03/03/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

1986

 

1985

 

1984

 

1983

 

1982

 

1986

 

1985

 

1984

 

1983

 

1982

 
Chevrolet K30

6.2L V8 Diesel OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

Chevrolet K30



6.2L V8 Diesel OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
Chevrolet K30

7.4L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

Chevrolet K30



7.4L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1978

 

1977

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1978

 

1977

 
Chevrolet K30

4.8L L6 Gas OHV,
5.7L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

Chevrolet K30



4.8L L6 Gas OHV,
5.7L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle
Chevrolet P30

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

Chevrolet P30



5.7L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 

1986

 

1985

 

1993

 

1992

 

1991

 

1990

 

1989

 

1988

 

1987

 

1986

 

1985

 
Chevrolet P30

6.2L V8 Diesel OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

Chevrolet P30



6.2L V8 Diesel OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle

1989

 

1988

 

1987

 

1986

 

1985

 

1989

 

1988

 

1987

 

1986

 

1985

 
Chevrolet P30

4.8L L6 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

Chevrolet P30



4.8L L6 Gas OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1986

 

1985

 

1984

 

1983

 

1982

 
GMC K3500

6.2L V8 Diesel OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

GMC K3500



6.2L V8 Diesel OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1979

 
GMC K3500

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

GMC K3500



4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle
GMC P3500

5.7L V8 Gas OHV,
7.4L V8 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

GMC P3500



5.7L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle
GMC P3500

6.2L V8 Diesel OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

GMC P3500



6.2L V8 Diesel OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle
GMC P3500

4.8L L6 Gas OHV
2
 
Rear
 
Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes
 

GMC P3500



4.8L L6 Gas OHV

Rear Professional
without Dual Rear Wheels
with 13 IN x 3-1/2 IN Brakes

2 Per Vehicle

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