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ACDelco 18M1 Brake Master Cylinder

ACDelco 18M1 Brake Master Cylinder Image 1
ACDelco 18M1 Brake Master Cylinder Image 2
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ACDelco 18M1 Brake Master Cylinder Image 4
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ACDelco 18M1 Brake Master Cylinder Image 7
ACDelco 18M1 Brake Master Cylinder Image 8
ACDelco 18M1 Brake Master Cylinder

ACDelco
Brand:ACDelco
Part Number: 18M1
UPC: 00036666694888
Weight: 6.57 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

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:
1.500 in.
Brake Booster Included:
No
Height (in):
4.8 in
Length (in):
9.4 in
Master Cylinder Bore Diameter:
1.5 in.
Master Cylinder Bore Diameter:
38.1 mm
Master Cylinder Cap Included:
Yes
Master Cylinder Material:
Iron
Mounting Bracket Included:
No
Mounting Hole Diameter:
0.413 in.
Mounting Hole Quantity:
3
Port Quantity:
2
Primary Outlet Thread Diameter:
0.5 in.
Primary Outlet Thread Diameter:
12.7 mm
Programming Required:
No
Push Rod Included:
No
Reservoir Included:
Yes
Secondary Outlet Thread Diameter:
0.125 in.
Secondary Outlet Thread Diameter:
3.175 mm
Weight (lb):
6.57 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:
US

Select a vehicle to narrow ACDelco 18M1 Brake Master Cylinder fitment info!

Last Updated: 12/10/2017

Years Vehicle Per Vehicle Fit NotesFitment Notes
International Harvester 1654

6.9L V8 Diesel
1
 
Bore 1-1/2 in
Front Drum, Manual Brakes
Single Hyd System
 

International Harvester 1654



6.9L V8 Diesel Bore 1-1/2 in
Front Drum, Manual Brakes
Single Hyd System
1 Per Vehicle
International Harvester 1654

9.0L V8 Diesel
1
 
Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
 

International Harvester 1654



9.0L V8 Diesel Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
1 Per Vehicle
International Harvester 1824

6.4L V8 Gas
1
 
Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
 

International Harvester 1824



6.4L V8 Gas Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
1 Per Vehicle
International Harvester 1824

6.4L V8 Gas
1
 
Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
 

International Harvester 1824



6.4L V8 Gas Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
1 Per Vehicle
International Harvester 1824

6.6L V8 Gas,
7.3L V8 Gas
1
 
Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
 

International Harvester 1824



6.6L V8 Gas,
7.3L V8 Gas Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
1 Per Vehicle
International Harvester 1824

6.4L V8 Gas
1
 
Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
 

International Harvester 1824



6.4L V8 Gas Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
1 Per Vehicle
International Harvester 1824

7.3L V8 Gas
1
 
Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
 

International Harvester 1824



7.3L V8 Gas Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
1 Per Vehicle
International Harvester 1824

6.6L V8 Gas
1
 
Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
 

International Harvester 1824



6.6L V8 Gas Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
1 Per Vehicle
International Harvester 1824

7.3L V8 Gas
1
 
Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
 

International Harvester 1824



7.3L V8 Gas Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
1 Per Vehicle
International Harvester CO180

4.4L l6 Gas,
4.6L l6 Gas,
5.0L l6 Gas
1
 
Manual Brakes
 

International Harvester CO180



4.4L l6 Gas,
4.6L l6 Gas,
5.0L l6 Gas Manual Brakes
1 Per Vehicle
International Harvester S1624

5.7L V8 Gas
1
 
Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
 

International Harvester S1624



5.7L V8 Gas Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
1 Per Vehicle
International Harvester S1624

5.7L V8 Gas
1
 
Bore 1-1/2 in
Front Drum, Manual Brakes
Single Hyd System
 

International Harvester S1624



5.7L V8 Gas Bore 1-1/2 in
Front Drum, Manual Brakes
Single Hyd System
1 Per Vehicle
International Harvester S1823

5.7L V8 Gas
1
 
Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
 

International Harvester S1823



5.7L V8 Gas Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
1 Per Vehicle
International Harvester S1823

6.6L V8 Gas,
7.3L V8 Gas
1
 
Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
 

International Harvester S1823



6.6L V8 Gas,
7.3L V8 Gas Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
1 Per Vehicle
International Harvester S1824

5.7L V8 Gas,
6.4L V8 Gas
1
 
Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
 

International Harvester S1824



5.7L V8 Gas,
6.4L V8 Gas Bore 1-1/2 in
Front Drum
Single Hyd System
w/15 in Brakes
1 Per Vehicle
International Harvester S1824

6.6L V8 Gas,
7.3L V8 Gas
1
 
Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
 

International Harvester S1824



6.6L V8 Gas,
7.3L V8 Gas Bore 1-1/2in
Front Drum
Single Hyd System
w/15in Brakes
1 Per Vehicle
International Harvester S1853

9.0L l6 Diesel Turbo
1
 
Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
w/15in Brakes
 

International Harvester S1853



9.0L l6 Diesel Turbo Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
w/15in Brakes
1 Per Vehicle
International Harvester S1853

9.0L l6 Diesel Turbo
1
 
Bore 1-1/2 in
Front Drum, Manual Brakes
Single Hyd System
w/15 in Brakes
 

International Harvester S1853



9.0L l6 Diesel Turbo Bore 1-1/2 in
Front Drum, Manual Brakes
Single Hyd System
w/15 in Brakes
1 Per Vehicle
International Harvester S1853

9.0L l6 Diesel Turbo
1
 
Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
w/15in Brakes
 

International Harvester S1853



9.0L l6 Diesel Turbo Bore 1-1/2in
Front Drum, Manual Brakes
Single Hyd System
w/15in Brakes
1 Per Vehicle