Rear Brake Wheel Cylinder MK356640 MK-356640 For Mitsubishi Fuso Canter FE/FG Series & Rosa Bus 4D31/4D34/4M42 — OEM Rear Right Hand (RH) Forward 1-1/4″ Bore Cast Iron Drum Brake Cylinder

✅ Product Description

The Rear Brake Wheel Cylinder with OEM number MK356640 (also listed as MK-356640) is a verified OEM-grade direct replacement for a wide range of Mitsubishi Fuso light and medium-duty trucks, including the Canter (FE/FG series) and Rosa buses-. Manufactured to Mitsubishi's stringent OEM specifications-, this cylinder is a critical component of the rear drum brake system. It converts hydraulic pressure from the brake master cylinder into mechanical force, pushing the brake shoes against the drum to provide safe and reliable stopping power-4-5.

⚠️ Important Fitment Note: Part number MK356640 is the Rear Right-Hand (RH) Forward wheel cylinder--6. The matching Rear Left-Hand (LH) Forward counterpart is MK356639-. For balanced braking performance, it is strongly recommended to replace brake wheel cylinders in pairs (both rear wheels).

• ✅ OEM Specification — Verified by Mitsubishi OEM part numbers MK356640, with cross-references including MK326486 and 11510.638--6.

• ✅ Precision 1-1/4″ (31.75mm) Bore — Verified by dimensional specifications--6.

• ✅ Proven Durability — Constructed from high-grade cast iron with corrosion-resistant coating- — rated for 200,000+ km under normal operation.

• ✅ Broad Compatibility — Fits Mitsubishi Fuso Canter (FE/FG series) and Rosa models with 4D31/4D34/4M42 engines--6.

[Failure Symptoms]
If your rear brake wheel cylinder is failing, you may experience one or more of the following symptoms:

1. Brake Fluid Leakage: Visible fluid seeping from the rear wheels or inside the brake drum — indicates worn seals.

2. Soft or Spongy Brake Pedal: Pedal feels unusually soft or goes to the floor — indicates internal seal failure.

3. Reduced Braking Performance: Vehicle takes longer to stop or requires increased pedal pressure.

4. Uneven Braking: Vehicle pulls to one side during braking — indicates a seized or leaking cylinder on one side.

5. Contaminated Brake Shoes: Brake fluid soaking into the brake shoes, causing reduced friction and brake fade.

⚠️ A failing brake wheel cylinder can lead to reduced braking performance and potential brake failure — prompt replacement is essential. For optimal performance, it is strongly recommended to replace brake wheel cylinders in pairs.

✅ Vehicle & Engine Compatibility

Primary Applications — Mitsubishi Fuso:

⚠️ Important:

• This brake wheel cylinder is specifically for the Rear Right-Hand (RH) Forward position-6.

• The Rear Left-Hand (LH) Forward counterpart is MK356639-.

• Compatible with Mitsubishi Fuso Canter and Rosa models-.

• Bore Diameter: 1-1/4″ (31.75mm) — verify your vehicle's brake system specifications before ordering-.

• It is strongly recommended to replace brake wheel cylinders in pairs (both rear wheels) for balanced braking performance.

• Please verify your vehicle's chassis code, production year, and VIN before ordering.

✅ Features & Benefits

✅ Quality Control & Verification

Our manufacturing and inspection processes ensure every brake wheel cylinder meets or exceeds Mitsubishi OEM standards.

✅ Installation & Maintenance Recommendations

⚠️ IMPORTANT: Professional Installation Recommended

Replacing brake wheel cylinders is a critical safety procedure. It is strongly recommended to replace them in pairs (both rear wheels) for balanced braking performance.

• Pre-Installation Checklist:

  • Safely raise the vehicle and support it on jack stands.

  • Remove the rear wheels and brake drums to access the wheel cylinders.

  • CRITICAL: This is the Rear Right (RH) Forward cylinder — the LH counterpart is MK356639-.

  • Inspect brake shoes, drums, and hardware for wear — replace as necessary.

  • Use new brake fluid (DOT 3 or DOT 4) from a sealed container.

  • Critical: Replace wheel cylinders in pairs (both rear wheels) for balanced braking performance.

Installation Guidelines (Reference Mitsubishi workshop manual):

1. Safely raise the vehicle and support it on jack stands.

2. Remove the rear wheels and brake drums.

3. Disconnect the brake line from the old wheel cylinder.

4. Remove the mounting bolts securing the cylinder to the backing plate.

5. Remove the old cylinder and clean the backing plate thoroughly.

6. CRITICAL: Install the new cylinder with NEW mounting bolts.

7. Torque the mounting bolts to manufacturer's specified torque settings (refer to Mitsubishi workshop manual).

8. Reconnect the brake line and torque to specification.

9. CRITICAL: Bleed the brake system thoroughly to remove all air (start with the wheel furthest from the master cylinder).

10. Refill with fresh DOT 3 or DOT 4 brake fluid.

11. Reinstall the brake drums and wheels.

12. Test brake pedal feel and braking performance before road test.

Maintenance Schedule:

• Inspection: Every 50,000 km / 12 months. Check for fluid leaks, brake pedal feel, and braking performance.

• Fluid Replacement: Every 2 years or 40,000 km — replace brake fluid to prevent internal corrosion.

• Replacement: Immediately if failure symptoms appear. Replace in pairs for balanced braking.

✅ Packaging & Supply

• Packaging: Each brake wheel cylinder is securely packed in protective packaging to prevent shipping damage.

• Package Contents: 1 Brake Wheel Cylinder (Bleeder screw included).

• Weight: Approx. 1.88 – 2.162 kg-1.

• Warranty: 12 months / 20,000 km-6.

• Suitable for: Wholesale distributors, truck parts retailers, commercial vehicle repair shops, and fleet owners.