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
Repair of all system components to ensure structural and mechanical integrity
Replacement of all worn or damaged parts, including:
Bearings
Gears
Seals and sealant
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
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