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Dorman M39543 Brake Master Cylinder OE Replacement

(Jeep Grand Cherokee 1993-2004, Wrangler 1987-95, 1997-2006, Cherokee 1974-2001, Gladiator 1962-67, CJ7 1976-86, CJ5 1959-83, Comanche 1986-92 + 1020 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

M39543
9 reviews
Sale Price

$65.16

In Stock (5)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Dorman M39543 is a direct-fit replacement brake master cylinder engineered to restore proper braking performance to your vehicle. Designed as a precise OE-equivalent replacement, this master cylinder matches the original equipment specifications for a seamless, no-modification installation.

Key Features:

  • Precision-engineered to match the original equipment design, function, and performance
  • Manufactured from new, high-quality materials — not remanufactured or refurbished
  • Restores proper brake pedal feel and hydraulic pressure output
  • Designed for direct bolt-on fitment to specific vehicle years, makes, and models
  • Built to meet or exceed OE specifications for safe, dependable braking
  • Thoroughly tested for leak-free, reliable performance

The Dorman M39543 brake master cylinder is the trusted choice for a durable, long-lasting repair. As a fully new unit, it eliminates the uncertainty of worn or rebuilt cores, giving you confidence in your vehicle's most critical safety system.

Products specifications

Fits

Jeep Grand Cherokee 1993-2004, Wrangler 1987-95, 1997-2006, Cherokee 1974-2001, Gladiator 1962-67, CJ7 1976-86, CJ5 1959-83, Comanche 1986-92, Grand Wagoneer 1984-91, 1993, J10 1974-88, Wagoneer 1963-90, J20 1974-88 + 1016 more models

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

Mounting Hardware Included

No

Reservoir Included

Yes

Master Cylinder Bore Diameter

0.875

Number of Outlets

4

Package Contents

Master Cylinder

Secondary Outlet Thread Diameter

M10 x 1.0; M10 x 1.0

Sensor Included

Yes

Rearward Outlet Size

M10 x 1.0; M10 x 1.0

Master Cylinder Material

Cast iron

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quick and easy

Fast shipping great service!

Autoplicity has a great selection of parts and wonderful customer service.

Very nice transaction! Great doing business with you.

I ordered parts expecting my in stock items to be delivered promptly. Had a few issues there. The logistics need to be updated. I was contacted about the mistakes made and was justly compensated. I appreciate the second effort and will give them another try.

Good prices, good communication, and quick shipping. Would recommend for future purchases.

Autoplicity gave me no hassles ever, the price dropped on the product I ordered and I just contacted BuySafe and received the difference quickly. Order was shipped same day. I will buy them over and over again! Thank you Autoplicity.

Great prices! Wonderful customer service!

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