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Dorman M630989 Brake Master Cylinder OE Replacement

(2017, 2020 Acura MDX Base; 2017-2020 Acura MDX SH-AWD/Sport Hybrid; 2016-2018 Acura RDX Base; 1980 Mazda RX-7)

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

M630989
8 reviews
Sale Price

$78.47

1 left at this price

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Usually delivered within 2 days

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FREE SHIPPING

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No Hassle Returns

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Fitment guaranteed

Fitment guaranteed

Product Details

The Dorman M630989 is a direct-fit replacement brake master cylinder engineered to restore proper braking system function. Precision-manufactured to match original equipment specifications, this unit delivers the same hydraulic performance as the factory-installed master cylinder it replaces.

Key Features:

  • Manufactured from new, high-quality materials — not remanufactured or refurbished
  • Precision-engineered to match OE design, fit, and function
  • Restores proper brake pedal feel and hydraulic pressure
  • Direct bolt-on installation — no modifications required
  • Built to meet or exceed original equipment performance standards
  • Durable construction for long-lasting, reliable braking performance

The master cylinder is the heart of your vehicle's hydraulic braking system, converting pedal pressure into the hydraulic force that activates your brakes. A worn or failing master cylinder can result in a spongy pedal, fluid leaks, or total brake failure. The Dorman M630989 provides a safe, dependable solution with a quality new replacement built to last.

Products specifications

Fits

2017, 2020 Acura MDX Base; 2017-2020 Acura MDX SH-AWD/Sport Hybrid; 2016-2018 Acura RDX Base; 1980 Mazda RX-7

Secondary Outlet Thread Diameter

(2) M10 x 1.25

Number of Outlets

3

Master Cylinder Cap Included

No

Sensor Included

No

Package Contents

1 New Master Cylinder

Bleeder Hoses Included

No

Mounting Bracket Included

No

Reservoir Included

No

Reservoir Type

Removable

Mounting Hole Quantity

2

Push Rod Included

NO

Brake Booster Included

No

Master Cylinder Material

Cast Zinc

Master Cylinder Bore Diameter

0.8125

Mounting Hardware Included

No

Rearward Outlet Size

M10 X 1.25

It was good - I was adequately updated on your process. Thanks

hopefully, this fixes my issue

Fast and easy with Amazon log in

so far good

A+

Great checkout process!

Found what I needed at a price that was better than any other I found in my online search. Ordering was easy. I will definitely access your website for products as I continue with my car build process.

found what i wanted , hoping there the right one ..

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