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Dorman M39757 Brake Master Cylinder New 7/8 In. Bore

(1990 Honda Civic LX; 1990-1991 Honda Civic EX; 1991 Honda Civic Si; 1988-1990 Honda Prelude; 1990-1991 Honda CRX HF/Si + 4 more models)

Part of: Dorman Brake Master Cylinder Replacement

Other options in this family: Dorman M39298 Dorman M19012 Dorman M390139 Dorman M630735 Dorman M390200

Manufacturer

Picture for manufacturer Dorman

Part Number

M39757
7 reviews
Sale Price

$106.02

In Stock (5)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Dorman M39757 is a 100% new brake master cylinder engineered as a direct OEM replacement. Built to match the original part's design, dimensions, and hydraulic performance, this master cylinder restores proper brake pedal feel and braking response without the uncertainty of remanufactured units.

Key Features:

  • Precise OEM Match: Cylinder housing is cast from material matching the original to ensure accurate fit and consistent performance
  • EPDM Rubber Internals: All seals and rubber components are manufactured from high-quality EPDM compound, providing long-lasting resistance to glycol-based brake fluids
  • 100% New Construction: Made entirely from new materials — not remanufactured or rebuilt — for maximum reliability and safety
  • SAE Compliant: Engineered to meet rigorous SAE International standards
  • 7/8 In. Bore Diameter: Maintains correct hydraulic pressure balance for the original braking system
  • OE Cross-Reference: Replaces Honda OE part numbers 46100SF1013, 46100SF1023, and 46100SF1033

Dorman's brake master cylinder delivers a straightforward, confidence-inspiring replacement for a critical safety component, backed by over a century of aftermarket engineering expertise.

Products specifications

Fits

1990 Honda Civic LX; 1990-1991 Honda Civic EX; 1991 Honda Civic Si; 1988-1990 Honda Prelude; 1990-1991 Honda CRX HF/Si; 1990-1991 Acura Integra LS/RS; 1986 Nissan Maxima GL; 1986-1988 Nissan Maxima SE; 1987-1988 Nissan Maxima GXE

Feature - Benefit 1

Cylinder housing is constructed from high-quality cast iron or aluminum for long-lasting durability

Feature - Benefit 2

All rubber components are of high-quality EPDM compound for resistance to glycol-based brake fluid

Feature - Benefit 3

Direct replacement for a proper fit

Feature - Benefit 4

Manufactured to strict engineering quality standards, each Brake Master Cylinder meets S.A.E. specifications

Master Cylinder Material

Aluminum

Thread Pitch

1.0

Number of Outlets

2

Sensor Included

Yes

Secondary Outlet Thread Diameter

10

Mounting Hardware Included

No

Rearward Outlet Size

M10 X 1.0

Package Contents

Master Cylinder

Master Cylinder Bore Diameter

0.875

Reservoir Included

Yes

Primary Outlet Thread Pitch

1 mm

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