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ACDelco 18G21 Drum Brake Wheel Cylinder Repair Kit
for 1984 (please select make/model)

ACDelco 18G21 Drum Brake Wheel Cylinder Repair Kit - 1984

ACDelco
Brand:ACDelco
Part Number: 18G21
UPC: 00036666706222
Weight: 0.25 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

BRK CYL (B)

The ACDelco Professional Drum Brake Wheel Cylinder Repair Kit contains high quality replacement components for your vehicle's braking system. This kit includes the necessary bolts, fasteners, bushings, and other hardware needed to repair your vehicle's drum brake wheel cylinder applications. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

  • Includes necessary hardware for easy installation
  • Performs to standards required by OE manufacturers ensuring optimal protection, service life, and safety
  • Thoroughly manufactured to meet your expectations for fit, form, and function

Specifications:

Cup Material:
Rubber
Cup Outside Diameter:
1.75 in.
Cup Outside Diameter:
44.45 mm
Cylinder Bore Diameter:
1.750 in.
Cylinder Bore Diameter:
44.45 mm
Height (in):
2.8 in
Length (in):
4.8 in
Programming Required:
No
Weight (lb):
0.25 lb
Width (in):
2.8 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 18G21 Drum Brake Wheel Cylinder Repair Kit fitment info!

Last Updated: 03/09/2024

Years Vehicle Per Vehicle Position Fit NotesFitment Notes

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 
Chevrolet B60

8.2L V8 Diesel,
8.2L V8 Diesel Turbo
2
 
Rear
 
Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes
 

Chevrolet B60



8.2L V8 Diesel,
8.2L V8 Diesel Turbo

Rear Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes

2 Per Vehicle

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
Chevrolet B60

5.7L V8 Gas,
6.0L V8 Gas
2
 
Rear
 
Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes
 

Chevrolet B60



5.7L V8 Gas,
6.0L V8 Gas

Rear Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
Chevrolet B60

7.0L V8 Gas
2
 
Rear
 
Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes
 

Chevrolet B60



7.0L V8 Gas

Rear Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes

2 Per Vehicle

1984

 

1983

 

1982

 

1981

 

1984

 

1983

 

1982

 

1981

 
Chevrolet C60

10.4L V8 Diesel,
8.2L V8 Diesel
2
 
Rear
 
Professional
with Manual Adjusting Brakes
w/ Rear Drum Brakes
w/ Front Drum
H172, 16244 Rear Axle
1 3/4 Bore Diameter
 

Chevrolet C60



10.4L V8 Diesel,
8.2L V8 Diesel

Rear Professional
with Manual Adjusting Brakes
w/ Rear Drum Brakes
w/ Front Drum
H172, 16244 Rear Axle
1 3/4 Bore Diameter

2 Per Vehicle

1984

 

1983

 

1982

 

1981

 

1984

 

1983

 

1982

 

1981

 
Chevrolet C60

10.4L V8 Diesel,
8.2L V8 Diesel
2
 
Rear
 
Professional
with Manual Adjusting Brakes
with 15 IN x 7 IN Brakes
w/ Rear Drum Brakes
w/ Front Drum
1 3/4 Bore Diameter
 

Chevrolet C60



10.4L V8 Diesel,
8.2L V8 Diesel

Rear Professional
with Manual Adjusting Brakes
with 15 IN x 7 IN Brakes
w/ Rear Drum Brakes
w/ Front Drum
1 3/4 Bore Diameter

2 Per Vehicle

1984

 

1983

 

1982

 

1981

 

1980

 

1984

 

1983

 

1982

 

1981

 

1980

 
Chevrolet C60

4.8L L6 Gas OHV,
5.7L V8 Gas,
6.0L V8 Gas
2
 
Rear
 
Professional
with Manual Adjusting Brakes
w/ Rear Drum Brakes
w/ Front Drum
H172, 16244 Rear Axle
1 3/4 Bore Diameter
 

Chevrolet C60



4.8L L6 Gas OHV,
5.7L V8 Gas,
6.0L V8 Gas

Rear Professional
with Manual Adjusting Brakes
w/ Rear Drum Brakes
w/ Front Drum
H172, 16244 Rear Axle
1 3/4 Bore Diameter

2 Per Vehicle

1984

 

1983

 

1982

 

1981

 

1980

 

1984

 

1983

 

1982

 

1981

 

1980

 
Chevrolet C60

4.8L L6 Gas OHV,
5.7L V8 Gas,
6.0L V8 Gas
2
 
Rear
 
Professional
with Manual Adjusting Brakes
with 15 IN x 7 IN Brakes
w/ Rear Drum Brakes
w/ Front Drum
1 3/4 Bore Diameter
 

Chevrolet C60



4.8L L6 Gas OHV,
5.7L V8 Gas,
6.0L V8 Gas

Rear Professional
with Manual Adjusting Brakes
with 15 IN x 7 IN Brakes
w/ Rear Drum Brakes
w/ Front Drum
1 3/4 Bore Diameter

2 Per Vehicle

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 
GMC B6000

8.2L V8 Diesel,
8.2L V8 Diesel Turbo
2
 
Rear
 
Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes
 

GMC B6000



8.2L V8 Diesel,
8.2L V8 Diesel Turbo

Rear Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes

2 Per Vehicle

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1987

 

1986

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
GMC B6000

5.7L V8 Gas,
6.0L V8 Gas
2
 
Rear
 
Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes
 

GMC B6000



5.7L V8 Gas,
6.0L V8 Gas

Rear Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
GMC B6000

7.0L V8 Gas
2
 
Rear
 
Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes
 

GMC B6000



7.0L V8 Gas

Rear Professional
w/ 15 X 3 1/2 Front Brakes
15 X 7 Rear Brakes
15 X 6 Rear Brakes

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1985

 

1984

 

1983

 

1982

 
GMC C7000

6.1L L6 Diesel Turbo
2
 
Rear
 
Professional
Lower
1 3/4 Bore Diameter
 

GMC C7000



6.1L L6 Diesel Turbo

Rear Professional
Lower
1 3/4 Bore Diameter

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1985

 

1984

 

1983

 

1982

 
GMC C7000

6.1L L6 Diesel Turbo
2
 
Rear
 
Professional
Upper
1 3/4 Bore Diameter
 

GMC C7000



6.1L L6 Diesel Turbo

Rear Professional
Upper
1 3/4 Bore Diameter

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1981

 

1985

 

1984

 

1983

 

1982

 

1981

 
GMC C7000

10.4L V8 Diesel Turbo
2
 
Rear
 
Professional
Lower
1 3/4 Bore Diameter
 

GMC C7000



10.4L V8 Diesel Turbo

Rear Professional
Lower
1 3/4 Bore Diameter

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1981

 

1985

 

1984

 

1983

 

1982

 

1981

 
GMC C7000

10.4L V8 Diesel Turbo
2
 
Rear
 
Professional
Upper
1 3/4 Bore Diameter
 

GMC C7000



10.4L V8 Diesel Turbo

Rear Professional
Upper
1 3/4 Bore Diameter

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
GMC C7000

10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo
2
 
Rear
 
Professional
Lower
1 3/4 Bore Diameter
 

GMC C7000



10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo

Rear Professional
Lower
1 3/4 Bore Diameter

2 Per Vehicle

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 

1985

 

1984

 

1983

 

1982

 

1981

 

1980

 
GMC C7000

10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo
2
 
Rear
 
Professional
Upper
1 3/4 Bore Diameter
 

GMC C7000



10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo

Rear Professional
Upper
1 3/4 Bore Diameter

2 Per Vehicle

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