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Dorman M390449 Brake Master Cylinder OE Replacement

(1988-1993 Chevrolet S10; 1988-1990 Chevrolet Astro; 1988 Chevrolet S10 Blazer; 1988-1993 Chevrolet LLV; 1991-1993 GMC Sonoma + 5 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

M390449
4 reviews
Sale Price

$109.37

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 M390449 is a direct-fit replacement brake master cylinder engineered to match the original equipment design, function, and performance specifications of the factory-installed unit. Built from new, high-quality materials, this master cylinder provides a safe and durable solution for restoring proper braking system operation.

Key Features:

  • Precision-engineered to OE specifications for a direct-fit installation
  • Manufactured from new, high-quality materials — not remanufactured
  • Designed to match original design, function, and performance
  • Restores proper brake pedal feel and hydraulic pressure generation
  • Built to meet or exceed original equipment standards for safety and durability

The brake master cylinder is the heart of the hydraulic braking system, converting pedal force into hydraulic pressure that actuates the brake calipers and wheel cylinders. Replacing a worn or failing master cylinder with a quality OE-equivalent unit like the Dorman M390449 helps ensure consistent, reliable stopping power.

Products specifications

Fits

1988-1993 Chevrolet S10; 1988-1990 Chevrolet Astro; 1988 Chevrolet S10 Blazer; 1988-1993 Chevrolet LLV; 1991-1993 GMC Sonoma; 1988-1990 GMC Safari; 1988-1990 GMC S15; 1988 GMC S15 Jimmy; 1997-2003 Ford Escort; 1997-1999 Mercury Tracer

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

Number of Outlets

4

Secondary Outlet Thread Diameter

M10 x 1.0; M16 x 1.5

Sensor Included

Yes

Package Contents

Master Cylinder

Master Cylinder Bore Diameter

0.938

Reservoir Included

Yes

Mounting Hardware Included

No

Rearward Outlet Size

M10 x 1.0; M16 x 1.5

Master Cylinder Material

Aluminum

Quick and easy so far

Item arrived quickly and as described. Thanks

Needed a part and found it on their site for the lowest price on the internet, and they shipped it quickly!

wow great service great products supper fast shipping could not be any more happy with the products dose what it says it dose.

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