Mercedes ML GL 500 W164 X164 Bare Engine 273963 273.963 388HP 99k, 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.). Mercedes ML GL 500 W164 X164 Bare Engine is a complete, used V8 engine block, designed for high-end Mercedes models. The bare engine configuration provides a solid foundation for professional replacement or overhaul, allowing you to transfer the accessories from your existing unit and maintain the factory performance characteristics.

Specifications and technical data

• SKU: A2730103102
• Mark: Mercedes (Genuine OE)
• Condition: Used
• OEM Part Number: A2730103102
• Substitutable numbers: A2730103102, A 273 010 31 02
• Fuel type: Petrol
• Number of cylinders: 8
• Part type: Engine Long Block
• Category: Engines
• Engine code: 273963 273.963
• Mileage: 99 000

Technical engine specifications

The presented engine belongs to the Engines category and represents a modern V8 petrol design used in the W164 and X164 series ML and GL models. The unit was designed for dynamic driving, high refinement, and smooth power delivery across the entire rev range, which is particularly noticeable in heavier premium SUVs. The eight-cylinder layout ensures even mechanical load, stable idling, and sufficient torque reserve at higher speeds. The use of petrol fuel promotes quiet operation, quick revving, and predictable throttle response, which is important both in daily use and during highway driving.

Application and vehicle compatibility

The bare engine block is primarily intended for use in Mercedes ML 500 and GL 500 vehicles of the W164/X164 generation, where maintaining the original drivetrain specification is crucial. This form of delivery allows for:

• transferring existing accessories (e.g., manifolds, auxiliary equipment, wiring harnesses) from the previous unit,
• easier adaptation to the specific vehicle equipment configuration,
• control over the scope of workshop work and repair costs. An engine of this design is a popular choice for workshops specializing in the Mercedes brand, as it enables the preservation of factory driving parameters and compatibility with the vehicle's existing electronics, while simultaneously reducing costs compared to a new unit.

Condition, mileage, and operational potential

The unit comes from the secondary market and has documented mileage, which allows for a realistic assessment of its further operational potential. For V8 petrol engines of this class, this level of wear is typical and often leaves a significant durability reserve, especially with proper installation and the use of appropriate consumables. The bare engine block is a good choice in situations where the previous engine has suffered a major mechanical failure (e.g., damage to the block, crankshaft, or cylinders), while the accessories remain in a condition suitable for further use. This allows for optimizing the repair budget while maintaining high quality and consistency of the vehicle configuration.

Benefits of choosing a used engine

By choosing a used V8 engine for your Mercedes, you gain the opportunity to significantly reduce repair costs while maintaining the original operating characteristics of the unit. Compared to a full overhaul of an old engine or purchasing a brand-new unit, this choice often proves to be the most economically rational, especially in the case of cars that are several or more years old. To better understand the differences between new and used power units, selection procedures based on identification numbers, and common myths regarding such purchases, it is worth reading our expert guide Why it is worth buying used gearboxes and engines – facts instead of myths. The article explains step-by-step how to consciously approach the purchase of a used engine and what to pay attention to during installation.

Complementary items from the same group

If you are planning a comprehensive repair or upgrade of the engine area in your Mercedes and need other items from the same group, such as additional power units, blocks, or short blocks, check out the available parts in the Mercedes Engines category.

Summary

Mercedes ML GL 500 W164 X164 Bare Engine is a technically sound proposal for users and workshops that want to restore full drivetrain efficiency in premium SUVs without the need to invest in a brand-new unit. The V8 petrol design provides adequate dynamics, refinement, and power reserve, and the bare engine format offers flexibility in terms of accessory configuration and service planning.