HomeRaybestos MC391010 Brake Master Cylinder
Part #: MC391010

Raybestos MC391010 Brake Master Cylinder

Element3; New, N/A
16 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: Chevrolet, Pontiac, Buick, and Saturn, Uplander, Montana, Terraza, and Relay
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Reliable Brake Master Cylinder for Buick, Chevrolet, Pontiac, and Saturn

The Raybestos Element3; New Brake Master Cylinder MC391010 is engineered to provide consistent hydraulic pressure for your vehicle's braking system. Designed specifically for select Buick, Chevrolet, Pontiac, and Saturn models, this master cylinder ensures precise brake fluid control and reliable stopping power.

  • Constructed from durable aluminum for corrosion resistance and lightweight performance
  • Features a 1.000-inch bore size for optimal hydraulic pressure
  • Includes two mounting holes with a diameter of 0.433 inches for secure installation
  • Equipped with two ports, both with M12x1 thread size for compatibility with brake lines
  • Compatible with Buick Montana, Chevrolet Uplander, Pontiac Montana, Saturn Relay, and Terraza models

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components that meet or exceed OEM specifications. This brake master cylinder is part of that line, offering a balance of quality materials and precise engineering to maintain brake system integrity and performance in your Buick, Chevrolet, Pontiac, or Saturn vehicle.

Detailed Product Description

The MC391010 brake master cylinder is crafted from aluminum, providing a lightweight yet durable solution for your vehicle's brake hydraulics. Its 1.000-inch bore size is designed to generate the necessary hydraulic pressure for effective braking. The two mounting holes, each with a 0.433-inch diameter, ensure a secure fit during installation. Additionally, the master cylinder features two ports with M12x1 threading, compatible with standard brake lines for easy integration into your vehicle's braking system.

Common Applications and Issues Addressed

  • Restores proper brake fluid pressure in Buick Montana and Pontiac Montana models
  • Replaces worn or leaking master cylinders in Chevrolet Uplander and Saturn Relay vehicles
  • Solves brake pedal sponginess or failure to build pressure
  • Addresses brake fluid leaks from the master cylinder assembly
  • Improves overall brake system responsiveness and safety

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Carefully remove the old master cylinder and inspect brake lines for wear or damage. When installing the MC391010, verify that the two mounting holes align properly and that the M12x1 threaded ports are securely connected to the brake lines. Bleed the brake system thoroughly after installation to remove any air and restore proper hydraulic pressure.

Quality Assurance and Warranty

Raybestos manufactures the MC391010 brake master cylinder to meet stringent quality standards, ensuring reliable performance and durability. This part is backed by Raybestos' quality assurance protocols, providing confidence in its fitment and function for compatible Buick, Chevrolet, Pontiac, and Saturn models.

BrandRaybestos
Part NumberMC391010
PositionElement3; New, N/A
Bore Size1.000
Master Cylinder MaterialAluminum
Mounting Hole Diameter0.433
Mounting Hole Quantity2
Number of Ports2
Primary Port Thread AM12x1
Secondary Port Thread AM12x1

This part fits 16 vehicles. Search below:

YearMakeModelSubmodelPositionNotes
2009ChevroletUplanderN/AElement3; New
2009PontiacMontanaN/AElement3; New
2008ChevroletUplanderN/AElement3; New
2008PontiacMontanaN/AElement3; New
2007BuickTerrazaN/AElement3; New
2007ChevroletUplanderN/AElement3; New
2007PontiacMontanaN/AElement3; New
2007SaturnRelayN/AElement3; New
2006BuickTerrazaN/AElement3; New
2006ChevroletUplanderN/AElement3; New
2006PontiacMontanaN/AElement3; New
2006SaturnRelayN/AElement3; New
2005BuickTerrazaN/AElement3; New
2005ChevroletUplanderN/AElement3; New
2005PontiacMontanaSV6N/AElement3; New
2005SaturnRelayN/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:

10-324713-3247130.660541518923819209193EX0393F142619M630364MC142619MCA630364NM4086NMC3247

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