Brake Master Cylinder for 2006-2011 Honda Civic - Dorman M630455

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$115.99
MPN: M630455
UPC: 885484048027
Item Package Quantity: 1
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Dorman - First Stop Brake Master Cylinder P/N:M630455
Dorman - First Stop Brake Master Cylinder P/N:M630455
$115.99

Send the force from your brake pedal into a brand-new hydraulic unit with the Dorman brake master cylinder M630455 from the First Stop line. It is a direct-fit replacement for the 2006-2011 Honda Civic, converting pedal effort into the hydraulic pressure that feeds the brake lines.

This Dorman master cylinder is precision-engineered to match the design, function and performance of the original master cylinder. It is built from new, high-quality materials and intended as a safe, durable replacement.

  • Precise replacement: the cylinder housing is built to match the casting material of the original part for similar performance.
  • Durable design: every rubber component uses a high-quality EPDM compound that resists glycol-based brake fluid.
  • 100% new: made entirely from new materials.
  • Strict specifications: manufactured to meet rigorous SAE International standards.

If a leaking or worn master cylinder is behind a soft or sinking pedal, this unit replaces it. For a 2006-2011 Honda Civic brake master cylinder replacement, follow the vehicle service information, including bleeding the brake system after installation.

Interchange: 100-1366 · 13-3260 · 11-3260 · 11-3876 · 130.40064 · 130.40066 · 355-59044
1001366 · 133260 · 113260 · 113876 · 13040064 · 13040066 · 35559044 · 46100SNAA01 · NM55351 · NM55378 · MC391002 · F142389 · MC142389

This part cross-references / interchanges with the following part numbers:

100-1366, 13-3260, 11-3260, 11-3876, 130.40064, 130.40066, 355-59044, 46100SNAA01, NM55351, NM55378, MC391002, F142389, MC142389

Frequently Asked Questions

Is this a 2006-2011 Honda Civic brake master cylinder?

Yes. Dorman M630455 is listed as a direct-fit replacement for the 2006-2011 Honda Civic, and the Buyer's Guide tab shows the full application details.

What does a brake master cylinder do?

It converts the force applied to the brake pedal into hydraulic pressure and sends brake fluid through the lines to the brakes.

What are the rubber components made of?

All rubber components are made of a high-quality EPDM compound, which is chosen for its resistance to glycol-based brake fluid.

What are signs a master cylinder may need replacing?

Common signs include a soft or sinking brake pedal, fluid leaking at the cylinder, or a brake warning light. Diagnose the cause first, because other brake parts can cause similar symptoms.

Does the brake system need bleeding after installation?

Yes. The brake hydraulic system should be bled after a master cylinder is installed. Follow the vehicle service information for the correct procedure.