HomeBrake > Brake HydraulicsDorman M39384 Brake Master Cylinder
Part #: M39384

Dorman M39384 Brake Master Cylinder

⚙️ 4 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Chevrolet and Pontiac, Camaro and Firebird
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Reliable Brake Master Cylinder for Chevrolet Camaro and Pontiac Firebird

The Dorman M39384 brake master cylinder is engineered to restore proper brake hydraulics in your Chevrolet Camaro or Pontiac Firebird. Designed with durable cast iron construction and precise bore diameters, this master cylinder ensures consistent brake fluid pressure for safe and effective braking performance.

  • Compatible with Chevrolet Camaro and Pontiac Firebird models
  • Constructed from durable cast iron for long-lasting use
  • Includes reservoir for brake fluid storage
  • Dual outlet design with two outlets for efficient brake line connection
  • Master cylinder bore diameters of 24.4 mm and 36 mm for accurate fluid displacement
  • Rearward outlet size of 9/16-18 and secondary outlet thread diameter of 0.5 inches
  • Part number M39384 for easy identification and replacement

Detailed Product Description

The Dorman M39384 brake master cylinder is a critical component in the brake hydraulics system of Chevrolet Camaro and Pontiac Firebird vehicles. Manufactured from cast iron, this master cylinder offers strength and resistance to wear under high pressure. It features two bore diameters, 24.4 mm and 36 mm, which are designed to provide precise hydraulic pressure control. The included reservoir allows for proper brake fluid storage and circulation, while the two outlets facilitate connection to the brake lines. The rearward outlet size of 9/16-18 and secondary outlet thread diameter of 0.5 inches ensure compatibility with factory brake line fittings. This master cylinder does not include mounting hardware or sensors, so verify existing components during installation.

Common Brake Issues Addressed

  • Brake pedal sinking or sponginess due to master cylinder failure
  • Brake fluid leaks from worn or damaged master cylinder seals
  • Inconsistent brake pressure affecting stopping performance
  • Brake warning light activation related to hydraulic system faults
  • Reduced braking efficiency in Chevrolet Camaro or Pontiac Firebird models

Installation Notes and Tips

  • Ensure the brake system is fully depressurized before removal
  • Bleed the brake system thoroughly after installation to remove air
  • Check compatibility with your vehicle’s brake line fittings using outlet thread sizes
  • Inspect and replace any worn brake lines or seals during installation
  • Use proper tools to avoid damage to the master cylinder or brake components

Quality Assurance and Warranty

Dorman manufactures the M39384 brake master cylinder to meet or exceed OEM specifications for Chevrolet Camaro and Pontiac Firebird vehicles. The cast iron construction and precise machining contribute to reliable brake system performance. While specific warranty details are not provided, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or your supplier for exact warranty terms.

BrandDorman
Part NumberM39384
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter24.4
Master Cylinder Bore Diameter36
Master Cylinder MaterialCast iron
Reservoir IncludedYes
Secondary Outlet Thread Diameter0.5
Sensor IncludedNo
Number of Outlets2
Package ContentsMaster cylinder
Rearward Outlet Size9/16-18

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
1983ChevroletCamaroN/ANo rewrite needed.
1983PontiacFirebirdN/ANo rewrite needed.
1982ChevroletCamaroN/ANo rewrite needed.
1982PontiacFirebirdN/ANo rewrite needed.

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

10-19871225913-1987130.620531800937018M20383-36053F105864M-82053M1987M900403MC39384MC507080

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.