HomeBrake > Brake HydraulicsRaybestos MC391439 Brake Master Cylinder
Part #: MC391439

Raybestos MC391439 Brake Master Cylinder

Element3; New, N/A
3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Element3; New, N/A
Fitment: Mazda and Ford, B2000, B1800, and Courier
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Reliable Brake Master Cylinder for Ford B2000 and Mazda Courier

The Raybestos Element3; New Brake Master Cylinder MC391439 is engineered to restore precise brake hydraulics for your Ford B2000 or Mazda Courier. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

  • Compatible with Ford B2000 and Mazda Courier models
  • Constructed from lightweight, corrosion-resistant aluminum
  • Two mounting holes with 0.354-inch diameter for secure installation
  • 0.875-inch bore size for optimal hydraulic pressure
  • Primary and secondary port threads sized M10x1.25 for standard brake line connections

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components with precise engineering and quality materials. This brake master cylinder is part of that line, offering a balance of durability and fitment accuracy to meet the demands of Ford B2000 and Mazda Courier vehicles.

Detailed Product Description

This brake master cylinder (part number MC391439) features an aluminum body that resists corrosion and reduces weight compared to traditional cast iron units. It includes two mounting holes with a diameter of 0.354 inches, ensuring a secure and stable fit. The 0.875-inch bore size is designed to provide the correct hydraulic pressure for effective braking. Both the primary and secondary ports have M10x1.25 threads, compatible with standard brake line fittings for straightforward installation.

Common Applications and Issues Addressed

  • Restores brake hydraulic pressure in Ford B2000 and Mazda Courier models
  • Replaces worn or leaking master cylinders causing brake fluid loss
  • Eliminates spongy or unresponsive brake pedal feel
  • Fixes internal seal failures leading to brake system failure
  • Addresses corrosion or damage to original master cylinder housing

Installation Notes and Tips

  • Ensure compatibility with Ford B2000 or Mazda Courier before installation
  • Bleed the brake system thoroughly after installation to remove air
  • Use proper torque on mounting bolts to avoid damage to mounting holes
  • Inspect brake lines and fittings for wear or damage during replacement
  • Follow manufacturer’s brake system maintenance procedures for safety

Quality Assurance and Warranty

Raybestos manufactures the MC391439 brake master cylinder to meet or exceed OEM specifications for fit, form, and function. The aluminum construction provides corrosion resistance and durability under normal operating conditions. While specific warranty details are not provided here, Raybestos products typically come with a limited warranty against defects in materials and workmanship.

BrandRaybestos
Part NumberMC391439
PositionElement3; New, N/A
Bore Size0.875
Master Cylinder MaterialAluminum
Mounting Hole Diameter0.354
Mounting Hole Quantity2
Primary Port Thread AM10x1.25
Secondary Port Thread AM10x1.25

This part fits 3 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1979MazdaB2000N/AElement3; New
1977FordCourier1.8LL4N/AElement3; New
1977FordCourier2.3LL4N/AElement3; New

* 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:

11-1787387543990D77Z2140B

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