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  2. Auto Parts
  3. Brake System
  4. Brake Hydraulics
  5. Brake Master Cylinder
  6. Dorman M39440

Dorman M39440 Brake Master Cylinder

Dorman M39440 Brake Master Cylinder Image 1
Dorman M39440 Brake Master Cylinder Image 2
Dorman M39440 Brake Master Cylinder Image 3
Dorman M39440 Brake Master Cylinder Image 4
Dorman M39440 Brake Master Cylinder

Dorman
Brand:Dorman
Part Number: M39440
UPC: 00082702398418
Weight: 3.37 lbs
Condition:New



Availability:
0 in Stock
 OUT OF STOCK

Product Information

Description:

Get the Dorman M39440 Brake Master Cylinder for your vehicle. Buy now and secure your purchase online!

This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement.

Features and Benefits:

  • 100% new - made entirely of new materials, not remanufactured, to ensure highest quality and safety
  • Durable design - all rubber components are made of high-quality EPDM compound for resistance to glycol-based brake fluid
  • Precise replacement - cylinder housing is constructed to match the casting material of the original part and ensure similar performance
  • Strict specifications - made to meet rigorous SAE International standards

Specifications:

Master Cylinder Bore Diameter:
0.938 in.
Master Cylinder Bore Diameter:
1.25 in.
Master Cylinder Material:
Aluminum
Mounting Hardware Included:
No
Number of Outlets:
5
Package Contents:
Master Cylinder
Rearward Outlet Size:
M10 x 1.0
Rearward Outlet Size:
M13 x 1.5
Rearward Outlet Size:
M16 x 1.5
Reservoir Included:
Yes
Secondary Outlet Thread Diameter:
M10 x 1.0
Secondary Outlet Thread Diameter:
M16 x 1.5
Sensor Included:
Yes
A1 Cardone #:
10-1929
ACDelco #:
18M232
Aimco #:
M900432
Autospecialty #:
M-82052
Bendix #:
11986
Cardone Select #:
13-1929
Centric Parts #:
130.62052
Centric Parts #:
131.62052
Coni-Seal #:
MC108140
General Motors #:
18010086
General Motors #:
18010088
General Motors #:
18011235
General Motors #:
18013418
General Motors #:
18013422
General Motors #:
18013423
Lusac #:
108700
MPA #:
M1929
MPA #:
NM1929
Raybestos Brake #:
2539440
Raybestos Brake #:
MC39440
Wagner Brake #:
F108140
Wagner Brake #:
MC108140
Country of Origin:
CN

Select a vehicle to narrow Dorman M39440 Brake Master Cylinder fitment info!

Last Updated: 09/22/2024

Years Vehicle Per Vehicle Fit NotesFitment Notes

1986

 

1986

 
Buick Century

2.8L V6 Gas OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Buick Century



2.8L V6 Gas OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Buick Century

2.5L L4 Gas OHV,
3.8L V6 Gas OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Buick Century



2.5L L4 Gas OHV,
3.8L V6 Gas OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1985

 

1985

 
Buick Century

3.0L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Buick Century



3.0L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1984

 

1984

 
Buick Century

2.5L L4 Gas OHV,
3.0L V6 Gas OHV,
3.8L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes
 

Buick Century



2.5L L4 Gas OHV,
3.0L V6 Gas OHV,
3.8L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes

1 Per Vehicle

1983

 

1983

 
Buick Century

2.5L L4 Gas OHV,
3.0L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
Power Brakes
 

Buick Century



2.5L L4 Gas OHV,
3.0L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
Power Brakes

1 Per Vehicle

1985

 

1985

 
Buick Electra

3.0L V6 Gas OHV,
3.8L V6 Gas OHV,
4.3L V6 Diesel OHV,
5.0L V8 Gas OHV,
5.7L V8 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
Power Brakes
 

Buick Electra



3.0L V6 Gas OHV,
3.8L V6 Gas OHV,
4.3L V6 Diesel OHV,
5.0L V8 Gas OHV,
5.7L V8 Diesel OHV Bore: 15/16 In. and 1.25 In.
Power Brakes

1 Per Vehicle

1985

 

1985

 
Cadillac DeVille

4.1L V8 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
Power Brakes
 

Cadillac DeVille



4.1L V8 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
Power Brakes

1 Per Vehicle

1985

 

1985

 
Cadillac Fleetwood

4.1L V8 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
Power Brakes
FWD
 

Cadillac Fleetwood



4.1L V8 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
Power Brakes
FWD

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Chevrolet Celebrity

2.5L L4 Gas OHV,
2.8L V6 Gas OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Chevrolet Celebrity



2.5L L4 Gas OHV,
2.8L V6 Gas OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1985

 

1985

 
Chevrolet Celebrity

4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Chevrolet Celebrity



4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1984

 

1984

 
Chevrolet Celebrity

2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes
 

Chevrolet Celebrity



2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes

1 Per Vehicle

1983

 

1983

 
Chevrolet Celebrity

2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
Power Brakes
 

Chevrolet Celebrity



2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
Power Brakes

1 Per Vehicle

1985

 

1985

 
Oldsmobile 98

3.0L V6 Gas OHV,
3.8L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
Power Brakes
 

Oldsmobile 98



3.0L V6 Gas OHV,
3.8L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
Power Brakes

1 Per Vehicle

1986

 

1986

 
Oldsmobile Cutlass Ciera

2.8L V6 Gas OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Oldsmobile Cutlass Ciera



2.8L V6 Gas OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Oldsmobile Cutlass Ciera

2.5L L4 Gas OHV,
3.8L V6 Gas OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Oldsmobile Cutlass Ciera



2.5L L4 Gas OHV,
3.8L V6 Gas OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1985

 

1985

 
Oldsmobile Cutlass Ciera

3.0L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Oldsmobile Cutlass Ciera



3.0L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1984

 

1984

 
Oldsmobile Cutlass Ciera

3.8L V6 Gas OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes
 

Oldsmobile Cutlass Ciera



3.8L V6 Gas OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes

1 Per Vehicle

1984

 

1983

 

1984

 

1983

 
Oldsmobile Cutlass Ciera

2.5L L4 Gas OHV,
3.0L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes
 

Oldsmobile Cutlass Ciera



2.5L L4 Gas OHV,
3.0L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes

1 Per Vehicle

1986

 

1985

 

1986

 

1985

 
Pontiac 6000

2.5L L4 Gas OHV,
2.8L V6 Gas OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Pontiac 6000



2.5L L4 Gas OHV,
2.8L V6 Gas OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1985

 

1985

 
Pontiac 6000

4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes
 

Pontiac 6000



4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA8 (Medium Duty Brakes)
Power Brakes

1 Per Vehicle

1984

 

1984

 
Pontiac 6000

2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes
 

Pontiac 6000



2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
w/RPO Code JA3 (Extra Heavy Duty Brakes)
Power Brakes

1 Per Vehicle

1983

 

1983

 
Pontiac 6000

2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV
1
 
Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
Power Brakes
 

Pontiac 6000



2.5L L4 Gas OHV,
2.8L V6 Gas OHV,
4.3L V6 Diesel OHV Bore: 15/16 In. and 1.25 In.
w/RPO Code JA2 (Heavy Duty Brakes)
Power Brakes

1 Per Vehicle