HomeRaybestos MC391422 Brake Master Cylinder
Part #: MC391422

Raybestos MC391422 Brake Master Cylinder

Element3; New, N/A
43 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: Audi, A8 Quattro, S8, A4, A4 Quattro, A5, A5 Quattro, S4, and S5
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Reliable Brake Master Cylinder for Audi Models

The Raybestos Element3; New Brake Master Cylinder MC391422 is engineered to restore precise brake hydraulics for select Audi vehicles. Designed with durable aluminum construction and exact fitment specifications, this master cylinder supports consistent braking performance for Audi A4, A5, S4, S5, A8 Quattro, and S8 models.

  • Constructed from lightweight, corrosion-resistant aluminum
  • Two mounting holes with 0.670-inch diameter for secure installation
  • 1.000-inch bore size optimized for brake fluid pressure control
  • Primary and secondary port threads sized M12x1 for compatibility with brake lines
  • Compatible with Audi A4, A4 Quattro, A5, A5 Quattro, A8 Quattro, S4, S5, and S8

About the Raybestos Element3; New Product Line

The Element3; New line from Raybestos focuses on delivering reliable brake hydraulics components with precise engineering and durable materials. This product line emphasizes quality construction and fitment accuracy, ensuring that the MC391422 brake master cylinder meets the specific requirements of various Audi models. The use of aluminum material in this line provides corrosion resistance and longevity under demanding driving conditions.

Detailed Product Description

The MC391422 brake master cylinder features a 1.000-inch bore size designed to maintain proper hydraulic pressure within the brake system. Its aluminum body offers a balance of strength and weight savings, reducing the risk of corrosion over time. The two mounting holes, each with a diameter of 0.670 inches, allow for secure attachment to the vehicle’s brake system. Both the primary and secondary ports use M12x1 thread sizes, ensuring compatibility with standard brake line fittings on compatible Audi models.

Common Applications and Problem Resolution

  • Restores brake fluid pressure for consistent pedal feel
  • Replaces worn or leaking master cylinders causing brake failure
  • Eliminates spongy or unresponsive brake pedal issues
  • Addresses internal seal wear that leads to fluid leaks
  • Improves overall brake system reliability on Audi A4, A5, and S series vehicles

Installation Notes and Tips

  • Ensure brake fluid system is properly bled after installation to remove air
  • Verify mounting hole alignment with vehicle specifications before securing
  • Use compatible brake fluid as recommended by Audi manufacturer guidelines
  • Inspect brake lines and fittings for wear or damage during installation
  • Follow torque specifications for mounting bolts to avoid damage

Quality Assurance and Warranty

Raybestos manufactures the MC391422 brake master cylinder to meet strict quality standards for brake hydraulics components. The Element3; New product line undergoes rigorous testing to ensure durability and performance. While specific warranty details may vary, Raybestos typically offers coverage against defects in materials and workmanship to provide confidence in product reliability.

BrandRaybestos
Part NumberMC391422
PositionElement3; New, N/A
Bore Size1.000
Master Cylinder MaterialAluminum
Mounting Hole Diameter0.670
Mounting Hole Quantity2
Primary Port Thread AM12x1
Secondary Port Thread AM12x1

This part fits 43 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2018AudiA8 QuattroN/AElement3; New
2018AudiS8N/ARaybestos Element 3
2017AudiA8 QuattroN/AElement3; New
2017AudiS8N/AElement3; New
2016AudiA8 QuattroN/AElement3; New
2016AudiS8N/AElement3; New
2015AudiA8 QuattroN/AElement3; New
2015AudiS8N/AElement3; New
2014AudiA8 QuattroN/AElement3; New
2014AudiS8N/AElement3; New
2013AudiA8 QuattroN/AElement3; New
2013AudiS8N/AElement3; New
2012AudiA4N/AGirling Cylinder; Element3; New
2012AudiA4 QuattroN/AGirling Cylinder; Element3; New
2012AudiA5N/AGirling Cylinder; Element3; New
2012AudiA5 QuattroN/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2012AudiA8 QuattroN/AElement3; New
2012AudiS4N/AATE Cylinder; Element3; New
2012AudiS5N/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2011AudiA4N/AGirling Cylinder; Element3; New
2011AudiA4BaseN/AExcept GIRLING Master Cylinder; Element3; New
2011AudiA4 QuattroN/AGirling Cylinder; Element3; New
2011AudiA5N/AGirling Cylinder; Element3; New
2011AudiA5 QuattroN/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2011AudiA8 QuattroN/AElement3; New
2011AudiS4N/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2011AudiS5N/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2010AudiA4N/AGirling Cylinder; Element3; New
2010AudiA4BaseN/AExcept GIRLING Master Cylinder; Element3; New
2010AudiA4 QuattroN/AGirling Cylinder; Element3; New
2010AudiA5N/AGirling Cylinder; Element3; New
2010AudiA5 QuattroN/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2010AudiA8 Quattro4.2LV8N/ARaybestos Element 3
2010AudiS4N/AGirling Cylinder; Element3; New
2010AudiS5N/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2009AudiA4BaseSedanN/AExcept GIRLING Master Cylinder; Element3; New
2009AudiA4 QuattroN/AGirling Cylinder; Element3; New
2009AudiA5N/Awith Girling Brakes; Raybestos Element 3
2009AudiA5 QuattroN/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2009AudiS5N/ACompatible with vehicles equipped with Girling Brakes.; Element3; New
2008AudiA5N/AGirling Cylinder; Raybestos Element 3
2008AudiA5 QuattroN/AGirling Cylinder; Element3; New
2008AudiS5N/AGirling Cylinder; 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:

13-40284207004H06110218K06110218K0611021B

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