Brake Master Cylinder BMC with Hard Anodized Pistons ZL111 Aluminum Alloy

The Brake Master Cylinder Assembly with OEM number 47201-0K020 (also listed as 472010K020) is a verified direct-fit replacement for Toyota Hilux Vigo (VII generation) and compatible Toyota Fortuner models. Engineered to OEM specifiions, this component is the heart of the hydraulic braking system, responsible for converting the force applied to the brake pedal into hydraulic pressure. This pressure is then distributed through the brake lines to activate the calipers and wheel cylinders, enabling safe and controlled deceleration.

• Real Shop Test Data: Precision-bored 13/16" (20.64mm) cylinder delivers consistent hydraulic pressure—verified against Toyota OEM specifiions for Hilux Vigo braking systems.
• Proven Durability: Built with ZL111 aluminum alloy housing (hardness >110HB) and hard-anodized pistons—rated for 100,000+ km under normal operation based on OEM-grade manufacturing standards.
• Installation Success Rate: 98% direct bolt-on fitment—confirmed across hundreds of repair orders for Hilux Vigo and Fortuner vehicles.
• OEM Cross-Reference Verified: Replaces 47201-0K040, 47207-26020, 47201-0K510.

If your brake master cylinder is failing, you may experience one or more of the following symptoms:

• Soft or Spongy Brake Pedal: Pedal feels unusually soft, spongy, or slowly sinks to the floor when held at a stop.
• Sinking Pedal at Traffic Lights: Brake pedal slowly sinks another inch or two while waiting at a stop—indies internal seal bypass.
• Increased Stopping Distance: Vehicle takes longer to stop than normal, even with firm pedal pressure.
• Brake Warning Light: Dashboard warning light illuminates with low fluid level and no visible external leaks.
• Fluid Leakage: Brake fluid seeping from the cylinder body or into the brake booster.
• Uneven Braking: Vehicle pulls to one side during braking.

• Brake fluid is highly corrosive—avoid contact with painted surfaces.
• Inspect brake booster for fluid contamination (sign of internal master cylinder leakage).
• Bench bleed the new master cylinder before installation to remove air.
• Always use fresh DOT 3 or DOT 4 brake fluid from a sealed container.

(Reference workshop manual):

1. Disconnect the negative battery terminal.
2. Siphon brake fluid from the reservoir.
3. Disconnect the brake lines from the master cylinder (note positions for reinstallation).
4. Disconnect the electrical connector (if equipped with fluid level sensor).
5. Remove the mounting nuts securing the master cylinder to the brake booster.
6. Remove the old master cylinder assembly.
7. Clean the booster mounting surface thoroughly.
8. CRITICAL: Bench bleed the new master cylinder before installation:
   • Mount the cylinder in a vise.
   • Fill the reservoir with fresh brake fluid.
   • Slowly push the piston in and out using a blunt tool until air bubbles cease.
9. Install the new master cylinder onto the booster.
10. Torque the mounting nuts to manufacturer's specified torque settings (refer to vehicle-specific workshop manual).
11. Reconnect the brake lines and torque to specifiion.
12. Refill the reservoir with fresh brake fluid.
13. CRITICAL: Bleed the entire brake system in the correct sequence (starting with the wheel furthest from the master cylinder).
14. Test brake pedal feel and check for leaks before road test.

• Inspection: Every 50,000 km / 12 months. Check brake pedal feel, fluid level, and inspect for leaks.
• Fluid Replacement: Every 2 years or 40,000 km—replace brake fluid to prevent internal corrosion.
• Replacement: Recommended at 100,000 km or immediately if failure symptoms appear.

Packaging: Each brake master cylinder is securely packed in a protective carton with foam inserts to prevent shipping damage.

Suitable for: Wholesale distributors, auto parts retailers, 4×4 specialty shops, and repair shops.