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ACDelco 18M229 Brake Master Cylinder

ACDelco 18M229 Brake Master Cylinder Image 3

ACDelco 18M229 Brake Master Cylinder Image 4

ACDelco 18M229 Brake Master Cylinder Image 5

ACDelco 18M229 Brake Master Cylinder Image 6

ACDelco 18M229 Brake Master Cylinder Image 7

ACDelco 18M229 Brake Master Cylinder Image 8


Brand:	ACDelco
Part Number:	18M229
UPC:	00036666697179
Weight:	9.17 lbs
Condition:	New

On Sale:

$73.57

Availability:

4 in Stock

Warehouse:

US-4

Quantity:

Product Information

Description:

MASTER CYL (B)

ACDelco Professional Brake Master Cylinders use both aluminum and iron castings, making them a high quality replacement for many vehicles on the road today. These master cylinders contain both Ethylene Propylene (EPDM) and Styrene Butadiene (SBR) rubber components to provide superior resistance to heat, corrosion, and leakage. ACDelco Professional Brake Master Cylinders are ready to bench bleed and install right out of the box - no assembly required. These premium aftermarket replacement brake master cylinders are manufactured to meet your expectations for fit, form, and function. ⚠ WARNING: Cancer and Reproductive Harm - https://www.P65Warnings.ca.gov

Features and Benefits:

Cast iron and aluminum specifications; no extra stress on the brake boosting mounting
Geometrical tolerance ensures that the body and plastic reservoir match for a proper fit
Meets the brake performance requirements of SAE J1153 and J1154 testing, providing reliability and quality
Piston assembly and return spring help to prevent brake drag, which can cause premature brake pad wear
Pressure tested to ensure safe and confident braking

Specifications:

Bleeder Hoses Included:

Yes

Bore Size:

1.250 in.

Brake Booster Included:

Height (in):

4.8 in

Length (in):

9.4 in

Master Cylinder Bore Diameter:

1.25 in.

Master Cylinder Bore Diameter:

31.75 mm

Master Cylinder Cap Included:

Yes

Master Cylinder Material:

Iron

Measurements:

13 in

Mounting Bracket Included:

Mounting Hole Diameter:

0.423 in.

Mounting Hole Quantity:

Port Quantity:

Primary Outlet Thread Diameter:

0.5625 in.

Primary Outlet Thread Diameter:

14.287 mm

Programming Required:

Push Rod Included:

Reservoir Included:

Yes

Secondary Outlet Thread Diameter:

0.5 in.

Secondary Outlet Thread Diameter:

12.7 mm

Weight (lb):

9.17 lb

Width (in):

5.8 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:

Select a vehicle to narrow ACDelco 18M229 Brake Master Cylinder fitment info!

Last Updated: 03/09/2024

Years

Vehicle

Per Vehicle

Fit Notes

Fitment Notes

1980

Chevrolet C30

4.1L L6 Gas OHV

1 Professional
with 13 IN x 2-1/2 IN Brakes

Chevrolet C30

4.1L L6 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet C30

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

1 Professional
with 13 IN x 2-1/2 IN Brakes

Chevrolet C30

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet G30

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

1 Professional
with 13 IN x 2-1/2 IN Brakes

Chevrolet G30

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet G30

5.7L V8 Gas OHV,
6.6L V8 Gas OHV

1 Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

Chevrolet G30

5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

1979

Chevrolet G30

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.0L V8 Gas OHV

1 Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

Chevrolet G30

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.0L V8 Gas OHV Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet K20

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV

1 Professional
with 13 IN Brakes

Chevrolet K20

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

Chevrolet K20 Suburban

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV

1 Professional
with 13 IN Brakes

Chevrolet K20 Suburban

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

Chevrolet P20

6.2L V8 Diesel OHV

1 Professional
w/ 13 Rear Brakes

Chevrolet P20

6.2L V8 Diesel OHV Professional
w/ 13 Rear Brakes

1 Per Vehicle

Chevrolet P20

4.8L L6 Gas OHV,
5.7L V8 Gas OHV

1 Professional
w/ 13 Rear Brakes

Chevrolet P20

4.8L L6 Gas OHV,
5.7L V8 Gas OHV Professional
w/ 13 Rear Brakes

1 Per Vehicle

1979

Chevrolet P20

7.4L V8 Gas OHV

1 Professional
w/ 13 Rear Brakes

Chevrolet P20

7.4L V8 Gas OHV Professional
w/ 13 Rear Brakes

1 Per Vehicle

1992

Chevrolet P30

4.3L V6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV

1 Professional
with Dual Wire Bail Master Cylinder Reservoir
w/ Rear Drum Brakes
w/ Option Codes (JB7), (JD7)
w/ 13 X 2 1/2 Rear Brakes
Hydroboost System

Chevrolet P30

4.3L V6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV Professional
with Dual Wire Bail Master Cylinder Reservoir
w/ Rear Drum Brakes
w/ Option Codes (JB7), (JD7)
w/ 13 X 2 1/2 Rear Brakes
Hydroboost System

1 Per Vehicle

Chevrolet P30

3.9L L4 Diesel OHV Turbo

1 Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

Chevrolet P30

3.9L L4 Diesel OHV Turbo Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

1 Per Vehicle

Chevrolet P30

6.2L V8 Diesel OHV

1 Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

Chevrolet P30

6.2L V8 Diesel OHV Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

1 Per Vehicle

1984

Chevrolet P30

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

1 Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

Chevrolet P30

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

1 Per Vehicle

1982

Chevrolet P30

6.2L V8 Diesel OHV

1 Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

Chevrolet P30

6.2L V8 Diesel OHV Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

1 Per Vehicle

Chevrolet P30

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

1 Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

Chevrolet P30

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

1 Per Vehicle

1979

Chevrolet P30

4.1L L6 Gas OHV

1 Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

Chevrolet P30

4.1L L6 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes
Rear Drum

1 Per Vehicle

GMC C3500

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV

1 Professional
with 13 IN x 2-1/2 IN Brakes

GMC C3500

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

1979

GMC C3500

6.6L V8 Gas OHV

1 Professional
with 13 IN x 2-1/2 IN Brakes

GMC C3500

6.6L V8 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

GMC G3500

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

1 Professional
with 13 IN x 2-1/2 IN Brakes

GMC G3500

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

1980

GMC K2500

4.1L L6 Gas OHV

1 Professional
with 13 IN Brakes

GMC K2500

4.1L L6 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

GMC K2500

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV

1 Professional
with 13 IN Brakes

GMC K2500

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

GMC K2500 Suburban

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV

1 Professional
with 13 IN Brakes

GMC K2500 Suburban

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

GMC P2500

6.2L V8 Diesel OHV

1 Professional
with 13 IN Brakes

GMC P2500

6.2L V8 Diesel OHV Professional
with 13 IN Brakes

1 Per Vehicle

GMC P2500

4.8L L6 Gas OHV,
5.7L V8 Gas OHV

1 Professional
with 13 IN Brakes

GMC P2500

4.8L L6 Gas OHV,
5.7L V8 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

1992

GMC P3500

4.3L V6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV

1 Professional
with Dual Wire Bail Master Cylinder Reservoir
w/ Rear Drum Brakes
w/ Option Codes (JB7), (JD7)
w/ 13 X 2 1/2 Rear Brakes
Hydroboost System

GMC P3500

4.3L V6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV Professional
with Dual Wire Bail Master Cylinder Reservoir
w/ Rear Drum Brakes
w/ Option Codes (JB7), (JD7)
w/ 13 X 2 1/2 Rear Brakes
Hydroboost System

1 Per Vehicle

ACDelco 18M229 Brake Master Cylinder

$73.57

Product Information

Description:

Features and Benefits:

Specifications:

Features and Benefits:

Specifications:

Select a vehicle to narrow ACDelco 18M229 Brake Master Cylinder fitment info!

Chevrolet C30 4.1L L6 Gas OHV

1

Professionalwith 13 IN x 2-1/2 IN Brakes

Chevrolet C30

4.1L L6 Gas OHV Professionalwith 13 IN x 2-1/2 IN Brakes 1 Per Vehicle

Chevrolet C30 4.8L L6 Gas OHV,5.7L V8 Gas OHV,7.4L V8 Gas OHV

1

Professionalwith 13 IN x 2-1/2 IN Brakes

Chevrolet C30

4.8L L6 Gas OHV,5.7L V8 Gas OHV,7.4L V8 Gas OHV Professionalwith 13 IN x 2-1/2 IN Brakes 1 Per Vehicle

Chevrolet G30 4.1L L6 Gas OHV,5.7L V8 Gas OHV,6.2L V8 Diesel OHV

1

Professionalwith 13 IN x 2-1/2 IN Brakes

Chevrolet G30

4.1L L6 Gas OHV,5.7L V8 Gas OHV,6.2L V8 Diesel OHV Professionalwith 13 IN x 2-1/2 IN Brakes 1 Per Vehicle

Chevrolet G30 5.7L V8 Gas OHV,6.6L V8 Gas OHV

1

Professionalwithout Hydro-Boost with 13 IN x 2-1/2 IN Brakes

Chevrolet G30

5.7L V8 Gas OHV,6.6L V8 Gas OHV Professionalwithout Hydro-Boost with 13 IN x 2-1/2 IN Brakes 1 Per Vehicle

Chevrolet G30 4.1L L6 Gas OHV,4.8L L6 Gas OHV,5.0L V8 Gas OHV

1

Professionalwithout Hydro-Boost with 13 IN x 2-1/2 IN Brakes

Chevrolet G30

4.1L L6 Gas OHV,4.8L L6 Gas OHV,5.0L V8 Gas OHV Professionalwithout Hydro-Boost with 13 IN x 2-1/2 IN Brakes 1 Per Vehicle

Chevrolet K20 4.1L L6 Gas OHV,4.8L L6 Gas OHV,5.7L V8 Gas OHV,6.6L V8 Gas OHV

1

Professionalwith 13 IN Brakes

Chevrolet K20

4.1L L6 Gas OHV,4.8L L6 Gas OHV,5.7L V8 Gas OHV,6.6L V8 Gas OHV Professionalwith 13 IN Brakes 1 Per Vehicle

Chevrolet K20 Suburban 4.8L L6 Gas OHV,5.7L V8 Gas OHV,6.6L V8 Gas OHV

1

Professionalwith 13 IN Brakes

Chevrolet K20 Suburban

4.8L L6 Gas OHV,5.7L V8 Gas OHV,6.6L V8 Gas OHV Professionalwith 13 IN Brakes 1 Per Vehicle

Chevrolet P20 6.2L V8 Diesel OHV

1

Professionalw/ 13 Rear Brakes

Chevrolet P20

6.2L V8 Diesel OHV Professionalw/ 13 Rear Brakes 1 Per Vehicle

Chevrolet P20 4.8L L6 Gas OHV,5.7L V8 Gas OHV

1

Professionalw/ 13 Rear Brakes

Chevrolet P20

4.8L L6 Gas OHV,5.7L V8 Gas OHV Professionalw/ 13 Rear Brakes 1 Per Vehicle

Chevrolet P20 7.4L V8 Gas OHV

1

Professionalw/ 13 Rear Brakes

Chevrolet P20

7.4L V8 Gas OHV Professionalw/ 13 Rear Brakes 1 Per Vehicle

Chevrolet P30 4.3L V6 Gas OHV,5.7L V8 Gas OHV,6.2L V8 Diesel OHV,7.4L V8 Gas OHV

1

Professionalwith Dual Wire Bail Master Cylinder Reservoir w/ Rear Drum Brakes w/ Option Codes (JB7), (JD7) w/ 13 X 2 1/2 Rear Brakes Hydroboost System

Chevrolet P30

4.3L V6 Gas OHV,5.7L V8 Gas OHV,6.2L V8 Diesel OHV,7.4L V8 Gas OHV Professionalwith Dual Wire Bail Master Cylinder Reservoir w/ Rear Drum Brakes w/ Option Codes (JB7), (JD7) w/ 13 X 2 1/2 Rear Brakes Hydroboost System 1 Per Vehicle

Chevrolet P30 3.9L L4 Diesel OHV Turbo

1

Professionalw/ 13 X 2 1/2 Rear BrakesRear Drum

Chevrolet P30

3.9L L4 Diesel OHV Turbo Professionalw/ 13 X 2 1/2 Rear BrakesRear Drum 1 Per Vehicle

Chevrolet P30 6.2L V8 Diesel OHV

1

Professionalw/ 13 X 2 1/2 Rear BrakesRear Drum

Chevrolet P30

6.2L V8 Diesel OHV Professionalw/ 13 X 2 1/2 Rear BrakesRear Drum 1 Per Vehicle

Chevrolet C30

4.1L L6 Gas OHV

Professional
with 13 IN x 2-1/2 IN Brakes

4.1L L6 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet C30

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

Professional
with 13 IN x 2-1/2 IN Brakes

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
7.4L V8 Gas OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet G30

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV

Professional
with 13 IN x 2-1/2 IN Brakes

4.1L L6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV Professional
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet G30

5.7L V8 Gas OHV,
6.6L V8 Gas OHV

Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet G30

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.0L V8 Gas OHV

Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.0L V8 Gas OHV Professional
without Hydro-Boost
with 13 IN x 2-1/2 IN Brakes

1 Per Vehicle

Chevrolet K20

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV

Professional
with 13 IN Brakes

4.1L L6 Gas OHV,
4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

Chevrolet K20 Suburban

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV

Professional
with 13 IN Brakes

4.8L L6 Gas OHV,
5.7L V8 Gas OHV,
6.6L V8 Gas OHV Professional
with 13 IN Brakes

1 Per Vehicle

Chevrolet P20

6.2L V8 Diesel OHV

Professional
w/ 13 Rear Brakes

6.2L V8 Diesel OHV Professional
w/ 13 Rear Brakes

1 Per Vehicle

Chevrolet P20

4.8L L6 Gas OHV,
5.7L V8 Gas OHV

Professional
w/ 13 Rear Brakes

4.8L L6 Gas OHV,
5.7L V8 Gas OHV Professional
w/ 13 Rear Brakes

1 Per Vehicle

Chevrolet P20

7.4L V8 Gas OHV

Professional
w/ 13 Rear Brakes

7.4L V8 Gas OHV Professional
w/ 13 Rear Brakes

1 Per Vehicle

Chevrolet P30

4.3L V6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV

Professional
with Dual Wire Bail Master Cylinder Reservoir
w/ Rear Drum Brakes
w/ Option Codes (JB7), (JD7)
w/ 13 X 2 1/2 Rear Brakes
Hydroboost System

4.3L V6 Gas OHV,
5.7L V8 Gas OHV,
6.2L V8 Diesel OHV,
7.4L V8 Gas OHV Professional
with Dual Wire Bail Master Cylinder Reservoir
w/ Rear Drum Brakes
w/ Option Codes (JB7), (JD7)
w/ 13 X 2 1/2 Rear Brakes
Hydroboost System

1 Per Vehicle

Chevrolet P30

3.9L L4 Diesel OHV Turbo

Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

3.9L L4 Diesel OHV Turbo Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

1 Per Vehicle

Chevrolet P30

6.2L V8 Diesel OHV

Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

6.2L V8 Diesel OHV Professional
w/ 13 X 2 1/2 Rear Brakes
Rear Drum

1 Per Vehicle