Raybestos MC391002 Brake Master Cylinder
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Raybestos
 Element3; New

Raybestos MC391002 Brake Master Cylinder

Brand Raybestos MC391002
Mounting Hole Quantity 2
Master Cylinder Material Aluminum
Mounting Hole Diameter 0.354
Bore Size 0.750
Number of Ports 2
Primary Port Thread A M10x1
Secondary Port Thread A M10x1
Product line Element3; New
Fits Honda · 34 vehicles

Aluminum construction. Helps keep the brake master cylinder lightweight and corrosion resistant.

Dual-port design. Supports clean brake line connections with two M10x1 ports.

0.750 bore size. Provides the hydraulic capacity needed for consistent brake response.

Cross-references Centric Parts 130.40064, Dorman - First Stop M630455 and Quality-Built NM55351 for the same application. See all 12.

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Brake Master Cylinder for Honda Civic

Raybestos Element3 MC391002 is a brake master cylinder built for specific Honda Civic applications from 2006-2011. It uses an aluminum master cylinder body with a 0.750 bore, two mounting holes, and two M10x1 ports for a direct-fit hydraulic connection.

Key Features

  • Brake master cylinder for Honda Civic fitments
  • Raybestos Element3 product line
  • Aluminum master cylinder construction
  • 0.750 bore size for hydraulic brake system operation
  • 2 mounting holes with 0.354 mounting hole diameter
  • 2 ports with M10x1 primary and secondary port threads
  • Part number MC391002

Product Details

The Raybestos Element3 MC391002 master cylinder is specified for 2006-2011 Honda Civic applications, including 2011 Honda Civic without Electronic Stability Control and 2009-2010 Honda Civic except Electronic Stability Program. The Element3 line is positioned as a brake hydraulics solution for vehicles that need the correct bore size, port thread pattern, and mounting layout to match the original brake system configuration. This part cross-references Dorman - First Stop M630455 for the same application.

What It Helps Address

  • Brake pedal travel that feels excessive or inconsistent
  • Internal master cylinder leakage
  • Loss of hydraulic pressure in the brake system
  • Brake fluid seepage around the master cylinder
  • Brake warning concerns tied to master cylinder wear

Installation Notes

Verify the vehicle’s brake system configuration before installation, especially Electronic Stability Control or Electronic Stability Program coverage on 2009-2011 Honda Civic models. Confirm the 0.750 bore, two-port layout, and M10x1 thread specification match the original unit before mounting. Proper brake bleeding is required after installation to restore firm pedal feel and remove air from the hydraulic system.

Quality Assurance

Raybestos Element3 brake hydraulics are built to match application-specific fitment requirements for Honda Civic brake service. MC391002 is engineered around the listed mounting and port specifications to support correct replacement selection for the covered vehicles.

Related reading

This part fits 34 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelNotes
2011HondaCivicLXElement3; New
2011HondaCivicGXElement3; New
2011HondaCivicDXElement3; New
2011HondaCivicDX-GElement3; New
2011HondaCivicLX-SElement3; New
2011HondaCivicEXw/o Electronic Stability Control; Element3; New
2011HondaCivicEX-Lw/o Electronic Stability Control; Element3; New
2010HondaCivicLXElement3; New
2010HondaCivicEXElement3; New
2010HondaCivicGXElement3; New
2010HondaCivicDXElement3; New
2010HondaCivicLX-SElement3; New
2010HondaCivicEX-LExcept Electronic Stability Program; Element3; New
2009HondaCivicLXElement3; New
2009HondaCivicEXElement3; New
2009HondaCivicGXElement3; New
2009HondaCivicDXElement3; New
2009HondaCivicDX-GElement3; New
2009HondaCivicLX-SElement3; New
2009HondaCivicEX-LExcept Electronic Stability Program; Element3; New
2008HondaCivicLXElement3; New
2008HondaCivicEXElement3; New
2008HondaCivicGXElement3; New
2008HondaCivicDXElement3; New
2008HondaCivicDX-GElement3; New
2007HondaCivicLXElement3; New
2007HondaCivicEXElement3; New
2007HondaCivicGXElement3; New
2007HondaCivicDXElement3; New
2006HondaCivicLXElement3; New
2006HondaCivicEXElement3; New
2006HondaCivicGXElement3; New
2006HondaCivicDXElement3; New
2006HondaCivicSiElement3; New
Directly replaces or cross-references 12 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Centric Parts — 130.40064Dorman - First Stop — M630455Quality-Built — NM55351Quality-Built — NM5537811-326011-351811-387613-326046100SNAA01H0270MC142389MCA630455