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ACDelco 18G21 Drum Brake Wheel Cylinder Repair Kit

ACDelco 18G21 Drum Brake Wheel Cylinder Repair Kit

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
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
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
Chevrolet B60

14.0L L6 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



14.0L L6 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
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
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
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
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
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
Chevrolet C60

6.1L L6 Diesel Turbo
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



6.1L L6 Diesel Turbo

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
Chevrolet C60

6.1L L6 Diesel Turbo
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



6.1L L6 Diesel Turbo

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
Chevrolet C70

6.1L L6 Diesel Turbo
2
 
Rear
 
Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter
 

Chevrolet C70



6.1L L6 Diesel Turbo

Rear Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter

2 Per Vehicle
Chevrolet C70

6.1L L6 Diesel Turbo
2
 
Rear
 
Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter
 

Chevrolet C70



6.1L L6 Diesel Turbo

Rear Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Chevrolet C70

10.4L V8 Diesel Turbo
2
 
Rear
 
Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter
 

Chevrolet C70



10.4L V8 Diesel Turbo

Rear Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter

2 Per Vehicle
Chevrolet C70

10.4L V8 Diesel Turbo
2
 
Rear
 
Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter
 

Chevrolet C70



10.4L V8 Diesel Turbo

Rear Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Chevrolet C70

10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo,
9.1L V8 Diesel Turbo
2
 
Rear
 
Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter
 

Chevrolet C70



10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo,
9.1L V8 Diesel Turbo

Rear Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter

2 Per Vehicle
Chevrolet C70

10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo,
9.1L V8 Diesel Turbo
2
 
Rear
 
Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter
 

Chevrolet C70



10.4L V8 Diesel,
6.0L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo,
9.1L V8 Diesel Turbo

Rear Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Chevrolet C70

7.4L V8 Gas OHV
2
 
Rear
 
Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter
 

Chevrolet C70



7.4L V8 Gas OHV

Rear Professional
with 15 IN x 6 IN Brakes
H172, 16244 Rear Axle
1 3/4 Bore Diameter

2 Per Vehicle
Chevrolet C70

7.4L V8 Gas OHV
2
 
Rear
 
Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter
 

Chevrolet C70



7.4L V8 Gas OHV

Rear Professional
with 15 IN x 7 IN Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Ford B700

6.1L V8 LPG,
7.0L V8 LPG
2
 
Rear
 
Professional
1 3/4 Bore Diameter
 

Ford B700



6.1L V8 LPG,
7.0L V8 LPG

Rear Professional
1 3/4 Bore Diameter

2 Per Vehicle
Ford B700

6.1L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo
2
 
Rear
 
Professional
1 3/4 Bore Diameter
 

Ford B700



6.1L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo

Rear Professional
1 3/4 Bore Diameter

2 Per Vehicle
Ford C700

6.1L V8 LPG
2
 
Rear
 
Professional
with 15 IN x 7 IN Brakes
with 15 IN x 6 IN Brakes
1 3/4 Bore Diameter
 

Ford C700



6.1L V8 LPG

Rear Professional
with 15 IN x 7 IN Brakes
with 15 IN x 6 IN Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Ford C700

7.0L V8 LPG
2
 
Rear
 
Professional
with 15 IN x 7 IN Brakes
with 15 IN x 6 IN Brakes
1 3/4 Bore Diameter
 

Ford C700



7.0L V8 LPG

Rear Professional
with 15 IN x 7 IN Brakes
with 15 IN x 6 IN Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Ford C700

6.1L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo
2
 
Rear
 
Professional
with 15 IN x 7 IN Brakes
with 15 IN x 6 IN Brakes
1 3/4 Bore Diameter
 

Ford C700



6.1L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo

Rear Professional
with 15 IN x 7 IN Brakes
with 15 IN x 6 IN Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Ford C800

7.0L V8 LPG
2
 
Rear
 
Professional
1 3/4 Bore Diameter
 

Ford C800



7.0L V8 LPG

Rear Professional
1 3/4 Bore Diameter

2 Per Vehicle
Ford C800

6.1L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo
2
 
Rear
 
Professional
1 3/4 Bore Diameter
 

Ford C800



6.1L V8 Gas,
7.0L V8 Gas,
8.2L V8 Diesel,
8.2L V8 Diesel Turbo

Rear Professional
1 3/4 Bore Diameter

2 Per Vehicle
Ford C900

7.8L V8 Gas,
8.8L V8 Gas
2
 
Rear
 
Professional
w/ 15 X 6 or 15 X 7 Rear Shoes
1 3/4 Bore Diameter
 

Ford C900



7.8L V8 Gas,
8.8L V8 Gas

Rear Professional
w/ 15 X 6 or 15 X 7 Rear Shoes
1 3/4 Bore Diameter

2 Per Vehicle
Ford C900

7.8L V8 Gas,
8.8L V8 Gas
2
 
Rear
 
Professional
w/ 16 X 6 Brakes
1 3/4 Bore Diameter
 

Ford C900



7.8L V8 Gas,
8.8L V8 Gas

Rear Professional
w/ 16 X 6 Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Ford L900

7.8L V8 Gas,
8.8L V8 Gas
2
 
Rear
 
Professional
w/ 16 X 6 Brakes
1 3/4 Bore Diameter
 

Ford L900



7.8L V8 Gas,
8.8L V8 Gas

Rear Professional
w/ 16 X 6 Brakes
1 3/4 Bore Diameter

2 Per Vehicle
Ford L900

7.8L V8 Gas,
8.8L V8 Gas
2
 
Rear
 
Professional
w/ 18,500 lb. Rear Axle
w/ 15 X 6 or 15 X 7 Rear Shoes
1 3/4 Bore Diameter
 

Ford L900



7.8L V8 Gas,
8.8L V8 Gas

Rear Professional
w/ 18,500 lb. Rear Axle
w/ 15 X 6 or 15 X 7 Rear Shoes
1 3/4 Bore Diameter

2 Per Vehicle
Ford LN900

7.8L V8 Gas,
8.8L V8 Gas
2
 
Rear
 
Professional
w/ 15 X 6 or 15 X 7 Rear Shoes
34000 # Axle
1 3/4 Bore Diameter
 

Ford LN900



7.8L V8 Gas,
8.8L V8 Gas

Rear Professional
w/ 15 X 6 or 15 X 7 Rear Shoes
34000 # Axle
1 3/4 Bore Diameter

2 Per Vehicle
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
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
GMC B6000

14.0L L6 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



14.0L L6 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
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
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
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
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
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
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
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
GMC C7000

9.1L V8 Diesel Turbo
2
 
Rear
 
Professional
Lower
1 3/4 Bore Diameter
 

GMC C7000



9.1L V8 Diesel Turbo

Rear Professional
Lower
1 3/4 Bore Diameter

2 Per Vehicle
GMC C7000

9.1L V8 Diesel Turbo
2
 
Rear
 
Professional
Upper
1 3/4 Bore Diameter
 

GMC C7000



9.1L V8 Diesel Turbo

Rear Professional
Upper
1 3/4 Bore Diameter

2 Per Vehicle
GMC C7000

7.4L V8 Gas OHV
2
 
Rear
 
Professional
Lower
1 3/4 Bore Diameter
 

GMC C7000



7.4L V8 Gas OHV

Rear Professional
Lower
1 3/4 Bore Diameter

2 Per Vehicle
GMC C7000

7.4L V8 Gas OHV
2
 
Rear
 
Professional
Upper
1 3/4 Bore Diameter
 

GMC C7000



7.4L V8 Gas OHV

Rear Professional
Upper
1 3/4 Bore Diameter

2 Per Vehicle