HomeBrake > Brake HydraulicsDorman M630604 Brake Master Cylinder
Part #: M630604

Dorman M630604 Brake Master Cylinder

⚙️ 11 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Acura and Honda, Accord and TSX
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Reliable Brake Master Cylinder for Acura and Honda Vehicles

The Dorman M630604 Brake Master Cylinder is engineered to restore proper brake hydraulics in select Acura and Honda models. Designed with precision, this master cylinder ensures consistent brake fluid pressure for safe and responsive braking performance.

  • Master cylinder bore diameter of 0.813 inches for accurate fluid displacement
  • Constructed from durable aluminum material for corrosion resistance and longevity
  • Includes an integrated reservoir for brake fluid storage
  • Equipped with a sensor to monitor brake system status
  • Features two outlets with M12 x 1.0 thread size for secure hydraulic connections

Product Details and Specifications

The Dorman M630604 brake master cylinder is designed specifically for Acura and Honda vehicles, including the Accord and TSX models. Its aluminum construction provides a lightweight yet robust component that resists corrosion and wear. The 0.813-inch bore diameter allows for precise hydraulic pressure control, essential for effective braking. This master cylinder comes with a built-in reservoir and sensor, enabling seamless integration with the vehicle's brake system monitoring. The two outlets, both with M12 x 1.0 thread pitch, facilitate proper brake line connections to the rear and secondary circuits, ensuring balanced brake fluid distribution.

Common Applications and Problem Resolution

  • Restores brake fluid pressure in Acura Accord and Honda TSX brake systems
  • Replaces master cylinders with worn or damaged bores causing brake failure
  • Addresses brake fluid leaks from the reservoir or outlet connections
  • Resolves brake warning light issues related to sensor malfunction
  • Improves brake pedal feel and responsiveness in affected vehicles

Installation Notes and Tips

Installation of the Dorman M630604 master cylinder requires proper brake system bleeding to remove air and ensure optimal hydraulic function. Since mounting hardware is not included, retain original fasteners or source compatible replacements. Verify thread sizes (M12 x 1.0) for brake line fittings before installation. It is recommended to inspect related brake components such as lines and calipers during replacement to maintain overall system integrity.

Quality Assurance and Warranty Information

Dorman manufactures the M630604 brake master cylinder to meet or exceed OEM specifications for Acura and Honda vehicles. The aluminum construction and integrated sensor contribute to reliable performance and durability. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in materials and workmanship. Consult product documentation or the manufacturer for exact warranty terms.

BrandDorman
Part NumberM630604
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter0.813
Master Cylinder MaterialAluminum
Reservoir IncludedYes
Sensor IncludedYes
Number of Outlets2
Package ContentsMaster cylinder
Rearward Outlet SizeM12 x 1.0
Secondary Outlet Thread DiameterM12 x 1.0
Thread Pitch1.0

This part fits 11 vehicles. Search below:

YearMakeModelPositionNotes
2014AcuraTSXN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2013AcuraTSXN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2012AcuraTSXN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2012HondaAccordN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2011AcuraTSXN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2011HondaAccordN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2010AcuraTSXN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2010HondaAccordN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2009AcuraTSXN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2009HondaAccordN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.
2008HondaAccordN/ACompatible with drum brake wheel cylinders with a 13/16 inch bore size.

* 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:

11-347713-3477130.4007246100TA1A01MC142936MC391101NM55344

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