Engine 651940 Mercedes W639 Vito Viano Bare Engine OM651 651.940 109k, WARRANTY

Warranty and technical condition of the part

The engine is sold with a 90-day warranty.

The power unit was tested before removal and is in full working order.

Listing details

The offer applies to a bare engine.

The engine is sold without accessories (e.g. alternator, starter motor, manifolds, injectors, turbocharger, etc.).

Engine 651940 Mercedes W639 Vito Viano Bare Engine OM651 651.940 109k, WARRANTY is a factory-spec, four-cylinder diesel unit from the OM651 family, designed for the W639 generation Vito models. A used engine from this series is a solution that allows for a technically sound vehicle repair while maintaining performance characteristics consistent with the manufacturer's specifications. By preserving the original design of the powertrain, it serves as a solid foundation for the continued operation of a commercial or passenger vehicle based on the Vito platform.

Specifications and technical data

• SKU: A6510108204
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A6510108204
• Substitutable numbers: A6510108204, A 651 010 82 04, A6510105202, A 651 010 52 02, A6510106002, A 651 010 60 02, A6510105402, A 651 010 54 02
• Fuel type: Diesel
• Number of cylinders: 4
• Category: Engines
• Mileage: 59 000

Technical characteristics of the OM651 unit

The OM651 engine used in the Vito W639 is a modern, inline four-cylinder diesel unit, designed for high efficiency and low fuel consumption. The design, based on diesel technology, ensures a favorable torque curve in the low and medium RPM ranges, which is particularly important in commercial and fleet vehicles. The use of this unit in the Vito allows for stable, predictable powertrain operation both in city traffic and on longer routes.

Application in the Mercedes Vito W639

The offered engine is designed for installation in Mercedes Vito W639 models, where it serves as the primary power source in both commercial and passenger configurations. The OM651 unit was developed with intensive use in mind, typical for commercial vehicles – cargo transport, passenger transport, and operation in varied road conditions. As a result, it performs well in corporate, service, and everyday private use applications.

Benefits of installing a used diesel engine

Choosing a used diesel engine for the Vito W639 is a solution that allows for significant repair cost savings compared to purchasing a brand-new unit. An engine with moderate mileage provides the opportunity to continue operating the vehicle while maintaining a reasonable service budget. The four-cylinder diesel design is known for a good balance between dynamics and economy, which translates into predictable fuel consumption and stable performance under typical operating conditions.

An additional advantage is the ability to match the unit by OEM number and interchangeable part numbers, which facilitates the selection of the correct variant for a specific vehicle trim level and model year. This minimizes the risk of mechanical and electronic compatibility issues after installation.

Selection, installation, and compatibility

Before installation, it is recommended to verify the engine's compatibility with the vehicle based on the VIN and catalog data to ensure proper fitment of accessories, the ECU, and the wiring harness. The OM651 family unit is designed as part of the Mercedes powertrain system, so when selected correctly, it allows for the maintenance of factory operating parameters for the fuel injection, intake, and exhaust systems. Professional installation in a specialized workshop helps reduce vehicle downtime and lowers the risk of additional costs associated with potential corrections.

Mercedes engines – expansion and modernization

If you are planning a comprehensive repair or modernization of the engine area in your Mercedes and need other components from the same group, such as blocks, cylinder heads, or complete long blocks, check out the available parts in the Mercedes Engines category.

Why consider a used OM651 engine

When choosing a used powertrain for a Vito, it is worth relying on reliable technical data and real-world operational experience. This is the subject of the expert guide Why it is worth buying used gearboxes and engines – facts instead of myths, which discusses, among other things, procedures for selection by OEM numbers, common myths regarding used powertrains, and cost ratios compared to new parts. Reading the article allows you to consciously plan your repair and select an engine in accordance with manufacturer recommendations and current market standards.