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ACDelco 18B4 Brake Drum


Brand:	ACDelco
Part Number:	18B4
UPC:	00036666682564
Weight:	22.5 lbs
Condition:	New

On Sale:

$70.41

Availability:

4 in Stock

Warehouse:

US-12

Quantity:

Product Information

Description:

Get the ACDelco 18B4 Brake Drum for your vehicle. Buy now and secure your purchase online!

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:

Bolt Circle Diameter (in):

5 in

Bolt Circle Diameter (mm):

127 mm

Bolt Hole Quantity:

Brake Surface Finish:

Turned

Center Bore Diameter (in):

3.06in

Center Bore Diameter (mm):

77.8mm

Depth:

3.47 in.

Depth:

88.15 mm

Discard Thickness (in):

11.06 in

Discard Thickness (mm):

280.9 mm

Grade Type:

Regular

Height (in):

4.7 in

Length (in):

11.06 in

Material:

Cast Iron

Maximum Brake Diameter (Discard):

280.92 mm

Mount Hole Diameter (in):

0.536in

Mount Hole Diameter (mm):

13.614mm

Nominal Drum Diameter:

0.435 in.

Nominal Drum Diameter:

11.05 mm

Outer Cooling Fins:

Yes

Outside Diameter:

0.551 in.

Outside Diameter:

14 mm

Programming Required:

Stud/Lug Hole Diameter:

0.528 in.

Stud/Lug Hole Diameter:

13.4 mm

Stud/Lug Hole Quantity:

Weight:

22.5 lb

Width (in):

14.4 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:

Select a vehicle to narrow ACDelco 18B4 Brake Drum fitment info!

Last Updated: 03/03/2024

Years

Vehicle

Per Vehicle

Position

Fit Notes

Fitment Notes

1973

Buick Centurion

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Centurion

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Centurion

7.5L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Centurion

7.5L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Commercial Chassis

5.7L V8 Gas OHV

2 Rear

Professional

Buick Commercial Chassis

5.7L V8 Gas OHV

Rear Professional

2 Per Vehicle

1992

Buick Commercial Chassis

5.7L V8 Gas OHV

2 Rear

Professional
Cab & Chassis
4 Doors

Buick Commercial Chassis

5.7L V8 Gas OHV

Rear Professional
Cab & Chassis
4 Doors

2 Per Vehicle

1991

Buick Commercial Chassis

5.0L V8 Gas OHV

2 Rear

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

Buick Commercial Chassis

5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

2 Per Vehicle

Buick Electra

5.0L V8 Gas OHV

2 Rear

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs
Wagon

Buick Electra

5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs
Wagon

2 Per Vehicle

1987

Buick Electra

5.0L V8 Gas OHV

2 Rear

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

Buick Electra

5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

2 Per Vehicle

Buick Electra

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Electra

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

5.7L V8 Diesel OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Electra

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

4.1L V6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Electra

4.1L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1980

Buick Electra

4.9L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Electra

4.9L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Electra

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

6.6L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Electra

6.6L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

7.5L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Electra

7.5L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Estate Wagon

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Estate Wagon

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Estate Wagon

5.7L V8 Diesel OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Estate Wagon

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1980

Buick Estate Wagon

4.9L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Estate Wagon

4.9L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Estate Wagon

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Estate Wagon

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Estate Wagon

6.6L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Estate Wagon

6.6L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1976

Buick Estate Wagon

7.5L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Estate Wagon

7.5L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1972

Buick Estate Wagon

7.5L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick Estate Wagon

7.5L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1990

Buick LeSabre

3.8L V6 Gas OHV,
5.0L V8 Gas OHV

2 Rear

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs
Wagon
4 Doors

Buick LeSabre

3.8L V6 Gas OHV,
5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs
Wagon
4 Doors

2 Per Vehicle

Buick LeSabre

3.8L V6 Gas OHV,
5.0L V8 Gas OHV

2 Rear

Professional
Wagon
4 Doors

Buick LeSabre

3.8L V6 Gas OHV,
5.0L V8 Gas OHV

Rear Professional
Wagon
4 Doors

2 Per Vehicle

Buick LeSabre

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

5.7L V8 Diesel OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

3.8L V6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

3.8L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

4.1L V6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

4.1L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

3.8L V6 Gas OHV Turbo

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

3.8L V6 Gas OHV Turbo

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

4.9L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

4.9L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1978

Buick LeSabre

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

6.6L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

6.6L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick LeSabre

7.5L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

7.5L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1975

Buick LeSabre

6.6L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Buick LeSabre

6.6L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Riviera

7.5L V8 Gas OHV

2 Rear

Professional

Buick Riviera

7.5L V8 Gas OHV

Rear Professional

2 Per Vehicle

1971

Buick Riviera

7.5L V8 Gas

2 Rear

Professional

Buick Riviera

Buick Roadmaster

5.7L V8 Gas OHV

2 Rear

Professional

Buick Roadmaster

Buick Roadmaster

5.7L V8 Gas OHV

2 Rear

Professional
with Axle Code 6GM
Sedan
4 Doors

Buick Roadmaster

5.7L V8 Gas OHV

Rear Professional
with Axle Code 6GM
Sedan
4 Doors

2 Per Vehicle

1992

Buick Roadmaster

5.7L V8 Gas OHV

2 Rear

Professional
Wagon
4 Doors

Buick Roadmaster

5.7L V8 Gas OHV

Rear Professional
Wagon
4 Doors

2 Per Vehicle

1991

Buick Roadmaster

5.0L V8 Gas OHV

2 Rear

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

Buick Roadmaster

5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

2 Per Vehicle

Cadillac Brougham

5.0L V8 Gas OHV,
5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums

Cadillac Brougham

5.0L V8 Gas OHV,
5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums

2 Per Vehicle

Cadillac Commercial Chassis

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes

Cadillac Commercial Chassis

5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes

2 Per Vehicle

1993

Cadillac Commercial Chassis

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums
RWD

Cadillac Commercial Chassis

5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums
RWD

2 Per Vehicle

1992

Cadillac Commercial Chassis

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums

Cadillac Commercial Chassis

5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums

2 Per Vehicle

Cadillac Fleetwood

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes

Cadillac Fleetwood

5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes

2 Per Vehicle

1993

Cadillac Fleetwood

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums

Cadillac Fleetwood

5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes
with 4-1/4in Wide Drums

2 Per Vehicle

Checker Aerobus

5.7L V8 Gas OHV

2 Rear

Professional

Checker Aerobus

5.7L V8 Gas OHV

Rear Professional

2 Per Vehicle

1972

Checker Aerobus

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes

Checker Aerobus

5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes

2 Per Vehicle

1980

Checker Marathon

3.8L V6 Gas OHV,
4.4L V8 Gas OHV,
5.7L V8 Diesel OHV

2 Rear

Professional

Checker Marathon

3.8L V6 Gas OHV,
4.4L V8 Gas OHV,
5.7L V8 Diesel OHV

Rear Professional

2 Per Vehicle

Checker Marathon

5.0L V8 Gas OHV

2 Rear

Professional

Checker Marathon

Checker Marathon

4.1L L6 Gas OHV,
5.7L V8 Gas OHV

2 Rear

Professional

Checker Marathon

4.1L L6 Gas OHV,
5.7L V8 Gas OHV

Rear Professional

2 Per Vehicle

Checker Marathon

4.1L L6 Gas,
5.7L V8 Gas

2 Rear

Professional

Checker Marathon

4.1L L6 Gas,
5.7L V8 Gas

Rear Professional

2 Per Vehicle

1972

Checker Marathon

4.1L L6 Gas,
4.1L L6 Gas OHV,
5.7L V8 Gas,
5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes

Checker Marathon

4.1L L6 Gas,
4.1L L6 Gas OHV,
5.7L V8 Gas,
5.7L V8 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes

2 Per Vehicle

Chevrolet Bel Air

5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Bel Air

5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Bel Air

4.1L L6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Bel Air

4.1L L6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Biscayne

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Biscayne

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Brookwood

4.1L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Brookwood

4.1L L6 Gas OHV,
5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

4.3L V8 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

4.3L V8 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

5.7L V8 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

5.7L V8 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

4.3L V6 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

4.3L V6 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

5.0L V8 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

5.0L V8 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

4.3L V6 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

4.3L V6 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

4.3L V6 Gas OHV,
5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

4.3L V6 Gas OHV,
5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

5.7L V8 Diesel OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

3.8L V6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

3.8L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

4.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

4.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

4.1L L6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

4.1L L6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

6.6L V8 Gas OHV,
7.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

6.6L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

4.1L L6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

4.1L L6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Caprice

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Caprice

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Commercial Chassis

5.7L V8 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Commercial Chassis

5.7L V8 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1992

Chevrolet Commercial Chassis

4.3L V6 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Commercial Chassis

4.3L V6 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Commercial Chassis

5.0L V8 Gas OHV

2 Rear

Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Commercial Chassis

5.0L V8 Gas OHV

Rear Professional
with Cast Iron Drum
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1985

Chevrolet Impala

4.3L V6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

4.3L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

5.7L V8 Diesel OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

3.8L V6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

3.8L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

4.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

4.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

4.1L L6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

4.1L L6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

6.6L V8 Gas OHV,
7.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

6.6L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

4.1L L6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

4.1L L6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Impala

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Impala

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Kingswood

5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Kingswood

5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Chevrolet Townsman

5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Chevrolet Townsman

5.0L V8 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV,
7.4L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1992

Oldsmobile 88

3.8L V6 Gas OHV

2 Rear

Professional
with 11 IN x 2 IN Brakes

Oldsmobile 88

3.8L V6 Gas OHV

Rear Professional
with 11 IN x 2 IN Brakes

2 Per Vehicle

1981

Oldsmobile 98

4.1L V6 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile 98

4.1L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile 98

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile 98

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile 98

5.7L V8 Diesel OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile 98

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile 98

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile 98

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile 98

6.6L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile 98

6.6L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile 98

7.5L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile 98

7.5L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1975

Oldsmobile 98

6.6L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile 98

6.6L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

1992

Oldsmobile Custom Cruiser

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile Custom Cruiser

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile Custom Cruiser

5.0L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile Custom Cruiser

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile Custom Cruiser

5.7L V8 Diesel OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile Custom Cruiser

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Oldsmobile Custom Cruiser

5.7L V8 Gas OHV

2 Rear

Professional
with 11 IN Brakes
with 4in Wide Drums

Oldsmobile Custom Cruiser

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

See More Fitments on Page 2 - or - Select Your Vehicle Above

ACDelco 18B4 Brake Drum

$70.41

Product Information

Description:

Features and Benefits:

Specifications:

Features and Benefits:

Specifications:

Select a vehicle to narrow ACDelco 18B4 Brake Drum fitment info!

Buick Centurion 5.7L V8 Gas OHV

2

Rear

Professionalwith 11 IN Brakes with 4in Wide Drums

Buick Centurion

5.7L V8 Gas OHV Rear Professionalwith 11 IN Brakes with 4in Wide Drums 2 Per Vehicle

Buick Centurion 7.5L V8 Gas OHV

2

Rear

Professionalwith 11 IN Brakes with 4in Wide Drums

Buick Centurion

7.5L V8 Gas OHV Rear Professionalwith 11 IN Brakes with 4in Wide Drums 2 Per Vehicle

Buick Commercial Chassis 5.7L V8 Gas OHV

2

Rear

Professional

Buick Commercial Chassis

5.7L V8 Gas OHV Rear Professional 2 Per Vehicle

Buick Commercial Chassis 5.7L V8 Gas OHV

2

Rear

ProfessionalCab & Chassis4 Doors

Buick Commercial Chassis

5.7L V8 Gas OHV Rear ProfessionalCab & Chassis4 Doors 2 Per Vehicle

Buick Commercial Chassis 5.0L V8 Gas OHV

2

Rear

ProfessionalFor Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

Buick Commercial Chassis

5.0L V8 Gas OHV Rear ProfessionalFor Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs 2 Per Vehicle

Buick Electra 5.0L V8 Gas OHV

2

Rear

ProfessionalFor Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In PairsWagon

Buick Electra

5.0L V8 Gas OHV Rear ProfessionalFor Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In PairsWagon 2 Per Vehicle

Buick Electra 5.0L V8 Gas OHV

2

Rear

ProfessionalFor Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

Buick Electra

5.0L V8 Gas OHV Rear ProfessionalFor Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs 2 Per Vehicle

Buick Electra 5.0L V8 Gas OHV

2

Rear

Professionalwith 11 IN Brakes with 4in Wide Drums

Buick Electra

5.0L V8 Gas OHV Rear Professionalwith 11 IN Brakes with 4in Wide Drums 2 Per Vehicle

Buick Electra 5.7L V8 Diesel OHV

2

Rear

Professionalwith 11 IN Brakes with 4in Wide Drums

Buick Electra

5.7L V8 Diesel OHV Rear Professionalwith 11 IN Brakes with 4in Wide Drums 2 Per Vehicle

Buick Electra 4.1L V6 Gas OHV

2

Rear

Professionalwith 11 IN Brakes with 4in Wide Drums

Buick Electra

4.1L V6 Gas OHV Rear Professionalwith 11 IN Brakes with 4in Wide Drums 2 Per Vehicle

Buick Electra 4.9L V8 Gas OHV

2

Rear

Professionalwith 11 IN Brakes with 4in Wide Drums

Buick Electra

4.9L V8 Gas OHV Rear Professionalwith 11 IN Brakes with 4in Wide Drums 2 Per Vehicle

Buick Electra 5.7L V8 Gas OHV

2

Rear

Professionalwith 11 IN Brakes with 4in Wide Drums

Buick Centurion

5.7L V8 Gas OHV

Professional
with 11 IN Brakes
with 4in Wide Drums

5.7L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Centurion

7.5L V8 Gas OHV

Professional
with 11 IN Brakes
with 4in Wide Drums

7.5L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Commercial Chassis

5.7L V8 Gas OHV

5.7L V8 Gas OHV

Rear Professional

2 Per Vehicle

Buick Commercial Chassis

5.7L V8 Gas OHV

Professional
Cab & Chassis
4 Doors

5.7L V8 Gas OHV

Rear Professional
Cab & Chassis
4 Doors

2 Per Vehicle

Buick Commercial Chassis

5.0L V8 Gas OHV

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

2 Per Vehicle

Buick Electra

5.0L V8 Gas OHV

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs
Wagon

5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs
Wagon

2 Per Vehicle

Buick Electra

5.0L V8 Gas OHV

Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

5.0L V8 Gas OHV

Rear Professional
For Vehicles Originally Equipped With Aluminum Drums, Cast Iron Replacement Must Be Done In Pairs

2 Per Vehicle

Buick Electra

5.0L V8 Gas OHV

Professional
with 11 IN Brakes
with 4in Wide Drums

5.0L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

5.7L V8 Diesel OHV

Professional
with 11 IN Brakes
with 4in Wide Drums

5.7L V8 Diesel OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

4.1L V6 Gas OHV

Professional
with 11 IN Brakes
with 4in Wide Drums

4.1L V6 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

4.9L V8 Gas OHV

Professional
with 11 IN Brakes
with 4in Wide Drums

4.9L V8 Gas OHV

Rear Professional
with 11 IN Brakes
with 4in Wide Drums

2 Per Vehicle

Buick Electra

5.7L V8 Gas OHV

Professional
with 11 IN Brakes
with 4in Wide Drums