HomeRaybestos MC391251 Brake Master Cylinder
Part #: MC391251

Raybestos MC391251 Brake Master Cylinder

Element3; New, N/A
2 vehicles fit this part
Select your vehicle to confirm fitment
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Out of Stock
OE Direct Replacement — Bolt-on fit, no modifications needed
Element3; New, N/A
Fitment: Chevrolet and GMC, Express 1500 and Savana 1500
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Reliable Brake Master Cylinder for Chevrolet and GMC Vans

The Raybestos Element3; New Brake Master Cylinder MC391251 is engineered to restore precise brake hydraulics for Chevrolet Express 1500 and GMC Savana 1500 models. Designed with durable aluminum construction and exact fitment specifications, this master cylinder ensures consistent braking performance.

  • Constructed from lightweight, corrosion-resistant aluminum
  • Two mounting holes with 0.421-inch diameter for secure installation
  • 34.000 mm bore size optimized for brake fluid pressure control
  • Two ports with M14x1.5 thread size for primary and secondary brake lines
  • Compatible with Chevrolet Express 1500 and GMC Savana 1500 vehicles

About the Raybestos Element3; New Product Line

The Element3; New line by Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM standards. This product line emphasizes precision engineering and material quality, such as the aluminum master cylinder body found in part number MC391251, to provide consistent brake system performance and durability for specific vehicle applications.

Detailed Product Description

This brake master cylinder features a 34.000 mm bore size designed to maintain proper hydraulic pressure within the brake system. The aluminum construction offers resistance to corrosion and heat, contributing to longer service life. With two mounting holes sized at 0.421 inches in diameter, installation is straightforward and secure. The master cylinder includes two ports, both threaded M14x1.5, accommodating primary and secondary brake lines for effective fluid distribution. This part is specifically engineered for Chevrolet Express 1500 and GMC Savana 1500 models, ensuring compatibility and reliable braking response.

Common Applications and Issues Addressed

  • Restores brake fluid pressure in Chevrolet Express 1500 and GMC Savana 1500
  • Replaces worn or leaking master cylinders causing brake pedal sponginess
  • Solves brake fluid leaks from damaged or corroded master cylinder bodies
  • Addresses inconsistent brake pedal feel due to internal seal failure
  • Improves overall brake system responsiveness and safety

Installation Notes and Tips

  • Ensure vehicle compatibility with Chevrolet Express 1500 or GMC Savana 1500 before installation
  • Use proper tools to avoid damaging the M14x1.5 threaded ports during brake line connection
  • Bleed the brake system thoroughly after installation to remove air and ensure optimal performance
  • Inspect mounting holes and hardware for secure fitment using the 0.421-inch diameter holes

Quality Assurance and Warranty

Raybestos manufactures the MC391251 brake master cylinder to meet stringent quality standards, using durable aluminum material for corrosion resistance and longevity. While specific warranty details are not provided here, Raybestos products typically come with manufacturer-backed warranties to ensure reliability and customer confidence.

BrandRaybestos
Part NumberMC391251
PositionElement3; New, N/A
Bore Size34.000
Master Cylinder MaterialAluminum
Mounting Hole Diameter0.421
Mounting Hole Quantity2
Number of Ports2
Primary Port Thread AM14x1.5
Secondary Port Thread AM14x1.5

This part fits 2 vehicles. Search below:

YearMakeModelPositionNotes
2008ChevroletExpress 1500N/ACompatible with vehicles equipped with Active Brake Control.; Element3; New
2008GMCSavana 1500N/ACompatible with vehicles equipped with Active Brake Control.; Element3; 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:

10-371713-3717130.660631583528025865167EX0386M630531MCA630531NM4187NMC3717

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