HomeBrake > Brake HydraulicsDorman M630475 Brake Master Cylinder
Part #: M630475

Dorman M630475 Brake Master Cylinder

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3 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Toyota, Avalon
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Overview of Dorman Brake Master Cylinder for Toyota Avalon

The Dorman M630475 brake master cylinder is designed specifically for Toyota Avalon models, providing reliable brake hydraulics performance. Crafted from aluminum, this master cylinder offers durability and precision for your vehicle's braking system.

  • Compatible with Toyota Avalon models
  • Master cylinder bore diameter: 0.875 inches
  • Constructed from durable aluminum material
  • Includes two outlets with rearward outlet size M10 x 1.0
  • Secondary outlet thread diameter of 10 mm with 1.0 thread pitch
  • Does not include mounting hardware or reservoir
  • Part number M630475 for easy identification

Detailed Product Description

The Dorman M630475 brake master cylinder is engineered to meet the specific hydraulic requirements of Toyota Avalon vehicles. Its aluminum construction ensures resistance to corrosion and long-lasting service life. The master cylinder features a bore diameter of 0.875 inches, which is critical for maintaining proper hydraulic pressure within the brake system. This part includes two outlets, with the rearward outlet sized at M10 x 1.0 and a secondary outlet thread diameter of 10 mm, both with a 1.0 thread pitch, ensuring compatibility with the vehicle's brake lines. Note that this master cylinder does not come with a reservoir or mounting hardware, so these components must be sourced separately if needed.

Common Applications and Issues Addressed

  • Restores proper brake hydraulic pressure in Toyota Avalon brake systems
  • Replaces worn or leaking master cylinders causing brake fluid loss
  • Eliminates spongy or unresponsive brake pedal feel
  • Resolves internal seal failures leading to brake system failure
  • Addresses brake fluid contamination issues affecting master cylinder performance

Installation Notes and Tips

  • Ensure compatibility with your specific Toyota Avalon model year before installation
  • Brake fluid reservoir and mounting hardware are not included and must be installed separately
  • Bleed the brake system thoroughly after installation to remove air and ensure proper brake function
  • Use appropriate tools to avoid damaging the aluminum master cylinder during installation
  • Consult the vehicle’s service manual for torque specifications and installation procedures

Quality Assurance and Warranty

Dorman manufactures the M630475 brake master cylinder to meet or exceed OEM standards for fit and function on Toyota Avalon vehicles. While specific warranty details are not provided here, Dorman products typically come with a limited warranty covering defects in material and workmanship. For exact warranty terms, refer to Dorman’s official documentation or contact the supplier.

BrandDorman
Part NumberM630475
Master Cylinder Bore Diameter0.875
Master Cylinder MaterialAluminum
Mounting Hardware IncludedNo
Number of Outlets2
Package ContentsMaster Cylinder
Rearward Outlet SizeM10 X 1.0
Reservoir IncludedNo
Secondary Outlet Thread Diameter10
Sensor IncludedNo
Thread Pitch1.0

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2007ToyotaAvalonN/AFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
2006ToyotaAvalonN/AFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.
2005ToyotaAvalonN/AFits drum brake wheel cylinders requiring 7/8" bore size brake master cylinder.

* 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:

11-327013-3270130.44040140644702807010F142626MC391064NM55327

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