47201-0D240 Brake Master Cylinder Fits 472010D240 Toyota YARIS VIOS NCP91 NCP93

Product Specification

Product Function Description

The brake master cylinder assembly is a critical component of your Toyota Yaris or Vios's braking system. This hydraulic device converts the mechanical force of the brake pedal into hydraulic pressure, distributing brake fluid through the brake lines to activate the brakes at each wheel. For the NCP91 and NCP93 models, a properly functioning brake master cylinder ensures consistent braking performance, reliable stopping power, and safe vehicle operation. This component is manufactured to factory specifications, ensuring proper fit and reliable brake system performance.

When Should You Replace It?

Consider replacing your brake master cylinder if you experience any of the following symptoms:

• Spongy or soft brake pedal – the pedal feels mushy and travels too far before engaging

• Brake pedal slowly sinks to the floor while holding pressure at a stop

• Brake fluid leaks visible under the vehicle or around the master cylinder area

• Brake warning light appears on the dashboard

• Reduced braking power – the vehicle takes longer to stop than normal

• Low brake fluid level without visible external leaks elsewhere (internal leakage)

• Contaminated or dark-colored brake fluid in the reservoir

Note: Brake master cylinders are critical safety components that should be inspected during brake service and replaced when signs of wear or damage appear.

Product Specifications

 Package Contents

• 1 × Brake Master Cylinder Assembly

• Protective packaging with part number label

Note: Brake fluid is not included. The reservoir and cap may or may not be included depending on the supplier.

 Inspection & Maintenance Recommendations

The brake master cylinder is a critical safety component that should be inspected regularly. Any signs of leakage or abnormal pedal feel require immediate attention .

Common indicators that the master cylinder may need replacement:

Inspection Checklist:

• Check the master cylinder for fluid leakage at the cylinder-to-booster joint and at pipe connections .

• Check brake fluid level and condition (dark, contaminated fluid indicates wear) .

• Check for a sinking or spongy brake pedal.

• Check brake fluid color—contaminated fluid should be replaced.

Maintenance Tips:

• Replace brake fluid every 2 years or 40,000 km to prevent moisture contamination .

• Use DOT 3 brake fluid as specified in the owner's manual .

• Keeping the brake fluid clean and at the right level is key to master cylinder longevity .

FAQ

Q1: How can I be sure this master cylinder fits my Yaris/Vios?
A1: The most reliable method is to check the existing part number on your vehicle's master cylinder. This part is confirmed for Yaris/Vios NCP91/NCP93 2006-2014 with 1.5L engine, RHD, and automatic transmission . Always verify via VIN.

Q2: Is this for left-hand drive or right-hand drive vehicles?
A2: This master cylinder is specifically for right-hand drive (RHD) vehicles . Left-hand drive variants use a different part number.

Q3: What is the piston diameter?
A3: The piston diameter is 20.7 mm .

Quality Assurance & Service Commitment

Quality Assurance:
Every component is manufactured under controlled production processes to ensure consistent dimensional accuracy and material integrity. Each unit undergoes the following quality checks before packaging:

• Dimensional inspection – critical mounting points and piston diameter are verified against design specifications

• Hydraulic seal test – sealing integrity is confirmed

• Surface finish inspection – corrosion protection and surface quality are visually verified

Packaging Protection:
Each brake master cylinder is individually sealed in protective packaging to prevent contamination and physical damage during storage and transit. The packaging includes a clear part number label for easy identification.

Service Commitment:

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