Mercedes-Benz Vito / Viano W639 Rear Axle Differential – A6393503214 / A6393502814

This rear axle drive differential is designed for Mercedes-Benz Vito and Viano W639 models. Available under OEM part numbers A6393503214 and A6393502814, these units are professionally overhauled to ensure reliable operation and long-lasting performance. Ideal for replacing worn, noisy, or damaged differentials, they are suitable for commercial vans, passenger vehicles, fleet maintenance, and export.

Each differential undergoes a complete reconditioning process, delivering a solution that meets or exceeds OEM standards.

Reconditioning & Overhaul Process

1. Repair of all system components to ensure structural and mechanical integrity

2. Replacement of all worn or damaged parts, including:

   • Bearings

   • Gears

   • Seals and sealant

3. Verification of proper operation, including:

   • Correct gear engagement

   • Noise and vibration checks

   • Backlash and tightness inspection

All components are reassembled and sealed, ensuring the differential is ready for immediate installation.

Technical Specifications

• Part Type: Rear axle drive / differential

• Installation Position: Rear axle

• Vehicle Platform: Mercedes-Benz W639

• Compatible Models: Vito / Viano W639

• OEM Part Numbers: A6393503214, A6393502814

• Condition: Professionally overhauled / reconditioned

• Verification: Function-tested for gears, noise, and tightness

Key Benefits

• OEM-quality rebuild for W639 rear axle applications

• Reliable alternative to new differentials

• Reduces noise and ensures smooth drivetrain operation

• Ideal for workshops, fleet operators, and commercial use

• Ready for installation with verified operation

Vehicle Compatibility

• Mercedes-Benz Vito W639

• Mercedes-Benz Viano W639

Exact fitment depends on axle ratio, engine type, and drivetrain configuration. VIN verification is recommended.

Typical Applications

• Replacement of damaged or worn rear differentials

• Drivetrain refurbishment for commercial and passenger vehicles

• Workshop and fleet maintenance

• Export and resale of OEM Mercedes parts