Mercedes-Benz 3.0 V6 CDI / BlueTEC 642.820 Engine for Sale
If you’re looking for a durable, torque-rich diesel engine built to handle large SUVs and demanding all-wheel-drive use, the Mercedes-Benz 3.0 V6 CDI / BlueTEC 642.820 is a proven choice. From 2006 to 2011, Mercedes-Benz installed this engine in the GL and M-Class (ML) models, where strength, reliability, and long-distance comfort were essential.
Robust V6 Diesel for Heavy 4MATIC SUVs
First of all, the 642.820 belongs to the well-known OM642 engine family. This 3.0-liter V6 turbo diesel delivers between 150 kW and 170 kW (204–231 hp), depending on version. As a result, these large SUVs accelerate smoothly, tow confidently, and maintain relaxed cruising at motorway speeds.
Moreover, BlueTEC technology helps reduce emissions while preserving strong torque and everyday usability—an important balance for long-haul and family use.
Engine Specifications at a Glance
| Specification | Details |
|---|---|
| Engine Type | V6, turbocharged diesel |
| Displacement | 3.0 liters (2987 cc) |
| Power Output | 150–170 kW (204–231 hp) |
| Fuel Type | Diesel |
| Engine Code | 642.820 |
| Engine Family | OM642 |
| Injection System | Common rail direct injection |
| Emissions Tech | BlueTEC |
| Drivetrain | 4MATIC AWD |
Confident Performance in All Conditions
Next, when paired with Mercedes automatic transmissions and 4MATIC all-wheel drive, the 642.820 provides strong traction and stability in all weather conditions. Torque arrives early, which makes city driving manageable despite the vehicle size, while off-road paths and towing scenarios feel controlled and predictable.
In addition, the V6 layout keeps vibration low and refinement high—key traits for premium SUVs.
Proven Durability and Strong Market Demand
Because Mercedes engineered the OM642 platform for high mileage and heavy-duty use, the 642.820 has earned a reputation for long service life. At the same time, balanced fuel consumption for its output keeps ownership costs reasonable. Consequently, this engine remains in steady demand for engine replacements, export, and resale.
Compatible Mercedes-Benz Models
| Mercedes-Benz Model | Engine Code | Displacement | Power | Model Years |
|---|---|---|---|---|
| GL (X164) 320 / 350 BlueTEC 4MATIC | 642.820 | 2987 cc | 165 kW | 2006–2009 |
| GL (X164) 350 BlueTEC 4MATIC | 642.820 | 2987 cc | 155 kW | 2009–2011 |
| M / ML (W164) 300 CDI 4MATIC | 642.820 | 2987 cc | 150 kW | 2009–2011 |
| M / ML (W164) 320 CDI BlueTEC 4MATIC | 642.820 | 2987 cc | 165 kW | 2006–2009 |
| M / ML (W164) 350 BlueTEC 4MATIC | 642.820 | 2987 cc | 170 kW | 2009–2011 |
| M / ML (W164) 350 CDI BlueTEC 4MATIC | 642.820 | 2987 cc | 155 kW | 2009–2010 |
Why Choose the Mercedes-Benz 642.820 Engine?
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Strong V6 diesel torque for large SUVs
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150–170 kW dependable performance
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Proven OM642 durability
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BlueTEC emissions technology
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Ideal for GL X164 and ML W164 replacements
Dependable Diesel Power for Classic Mercedes SUVs
In conclusion, the Mercedes-Benz 3.0 V6 CDI / BlueTEC 642.820 engine delivers the strength, refinement, and reliability that Mercedes SUV owners expect. Whether you’re replacing an engine in a GL X164 or ML W164, this powertrain offers proven performance backed by trusted Mercedes-Benz engineering.







