HomeBrake > Brake HydraulicsDorman M630781 Brake Master Cylinder
Part #: M630781

Dorman M630781 Brake Master Cylinder

⚙️ 3 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$137.57Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Kia, Amanti
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Reliable Brake Master Cylinder for Kia Amanti

The Dorman M630781 brake master cylinder is engineered to restore proper brake hydraulics in your Kia Amanti. Designed with durable cast iron construction, this master cylinder ensures consistent performance and longevity for your vehicle's braking system.

Key Features of Dorman M630781 Brake Master Cylinder

  • Master cylinder bore diameter: 1 inch for precise hydraulic pressure control
  • Constructed from cast iron for enhanced strength and durability
  • Includes two outlets with a rearward outlet size of M10 x 1.0 thread pitch
  • Removable reservoir type (reservoir not included)
  • Secondary outlet thread diameter of 10 mm
  • Package contains the master cylinder only, no mounting hardware or sensor included

Detailed Product Description

The Dorman M630781 brake master cylinder is specifically designed for the Kia Amanti, providing a direct replacement for the original component. Its 1-inch bore diameter allows for accurate hydraulic pressure generation, essential for effective brake system operation. Made from cast iron, this master cylinder offers resistance to wear and corrosion, contributing to a longer service life. The unit features two outlets, including a rearward outlet with an M10 x 1.0 thread pitch, compatible with the vehicle's brake lines. Note that the reservoir is removable but not included, and no sensor or mounting hardware comes with this part.

Common Applications and Issues Addressed

  • Restores proper brake fluid pressure in Kia Amanti brake systems
  • Replaces master cylinders with internal leaks or worn seals
  • Solves spongy or unresponsive brake pedal feel
  • Addresses brake fluid contamination or cylinder corrosion
  • Fixes brake system failure due to master cylinder malfunction

Installation Notes and Tips

  • Ensure compatibility with Kia Amanti models before installation
  • Bleed the brake system thoroughly after installation to remove air
  • Use appropriate brake fluid as specified by the vehicle manufacturer
  • Inspect brake lines and fittings for wear or damage during replacement
  • Professional installation is recommended for safety and performance

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and durability. While specific warranty details for part number M630781 are not provided here, Dorman typically offers limited warranties on their brake hydraulics components. Refer to the product packaging or manufacturer documentation for exact warranty terms.

BrandDorman
Part NumberM630781
Mounting Hardware IncludedNo
Master Cylinder Bore Diameter1
Master Cylinder MaterialCast iron
Reservoir IncludedNo
Secondary Outlet Thread Diameter10
Sensor IncludedNo
Number of Outlets2
Package ContentsMaster cylinder
Rearward Outlet SizeM10 x 1.0
Reservoir TypeRemovable
Thread Pitch1.0

This part fits 3 vehicles. Search below:

YearMakeModelPositionNotes
2009KiaAmantiN/ABrake Master Cylinder without Stability Control
2008KiaAmantiN/ABrake Master Cylinder without Stability Control
2007KiaAmantiN/ABrake Master Cylinder without Stability Control

* 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:

11-364813-3648130.50032585103F200F143129MC391335

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