MERCEDES 6420106945 Bluetec Diesel Engine Motor Benz W251 3.0L V6 91K

( Manufacturer Part Number: 6420106945 ), ( Type: Complete Assembly ), ( Oe/oem Part Number: A6420106945, A6420100214, A6420101017, A6420141502, A6420104028, A6420100621, A6420106107, A6420100921, A6420100521, A6420302601, A6420300901, A6420300403, A6420305220, A6420301818, A6420503601, A6420504601, A6420502801, A6420503501, A6460500249, A6421801600, A6421801410, 64295040634074, 642.950, A6421506733, A6420702295, A0029900022 ), ( Engine Size: 3.0l ), ( Fuel Type: Diesel )

Review MERCEDES benz 3.0l V6 Bluetec Diesel Engine Motor Oem 91k fits R320 ML350 GL320 2007–2013

The Mercedes-Benz W251 engine, specifically the ML 350, GL 320, R 320, and BLUETEC models equipped with the 3.0-liter V6 diesel unit bearing the part number 6420106945, is a remarkable piece of automotive engineering. This engine, produced from 2007 to 2013, delivers a perfect balance of power, efficiency, and refinement.

The 3.0-liter V6 engine, which is also known as the M270 DE30 OM642, embodies the spirit of Mercedes-Benz's commitment to innovation and performance. With a total displacement of 2,987cc, this engine boasts a sophisticated common rail direct injection system, delivering fuel pressure up to 1,800 bar, for maximum combustion efficiency and outstanding fuel economy.

The OM642 engine is renowned for its advanced BlueTEC emissions technology. This system utilizes selective catalytic reduction (SCR) and diesel exhaust fluid (DEF) injection to effectively reduce nitrogen oxides (NOx) emissions, ensuring compliance with stringent emission standards.

The engine features a single turbocharger with an intercooler, allowing for a broad powerband, producing a maximum output of 224 horsepower at 3,800 rpm and a torque peak of 413 lb-ft between 1,600 and 2,400 rpm. The power is transmitted to the wheels via a 7G-TRONIC automatic transmission.

The M270 DE30 OM642 engine is also characterized by its robust and durable design. The engine block is made of aluminum, reducing weight and enhancing heat dissipation. The engine also features a cast iron cylinder liner, ensuring excellent durability and longevity.

This engine's refined characteristics are evident in its quiet and smooth operation, offering a comfortable and luxurious driving experience. With its impressive power output, remarkable fuel efficiency, and advanced emissions technology, the Mercedes-Benz W251 3.0-liter V6 Bluetec diesel engine is truly a testament to the brand's engineering prowess and commitment to innovation.

The Mercedes-Benz W251 series, specifically the ML350 and GL320 models equipped with the 3.0L V6 Bluetec diesel engine with the motor code 6420106945, produced between 2007 and 2013, is a popular choice for those seeking a luxurious and fuel-efficient SUV. Here's a balanced assessment of the pros and cons of buying this vehicle.

1. Fuel Efficiency: Diesel engines are known for their fuel efficiency, and this engine is no exception. The ML350 and GL320 with the Bluetec diesel engine offer impressive mileage, making them a great choice for those who log a lot of miles.

2. Power and Torque: Diesel engines deliver impressive power and torque, which translates to strong acceleration and responsive performance. This can be particularly beneficial when towing or carrying heavy loads.

3. Durability: Mercedes-Benz engines are renowned for their durability, and the Bluetec diesel engine is no exception. With proper maintenance, these engines can last for hundreds of thousands of miles.

4. Smooth Operation: The Bluetec diesel engine features advanced technology, including a sophisticated exhaust gas recirculation system, which reduces emissions while maintaining smooth and quiet operation.

5. Luxurious Features: Mercedes-Benz is known for its luxurious features, and the ML320 and GL350 models are no exception. These vehicles offer a comfortable and refined driving experience, with features like leather upholstery, advanced infotainment systems, and state-of-the-art safety technology.

1. Initial Cost: The upfront cost of a Mercedes-Benz with a Bluetec diesel engine can be higher than comparable gasoline-powered models. This may be a significant factor for some buyers.

2. Maintenance Costs: Diesel engines can require more frequent maintenance than gasoline engines, including regular engine oil changes, fuel filter replacements, and exhaust system inspections. The cost of these repairs can add up over time.

3. Availability of Parts: While Mercedes-Benz is a well-established brand, some parts for the Bluetec diesel engine may be harder to find or more expensive than their gasoline counterparts. This could be a concern for those who prefer to perform their own repairs.

4. Complexity: Diesel engines are more complex than gasoline engines, and the Bluetec system adds an additional layer of complexity. This could make maintenance and repairs more challenging for some owners.

5. Noise Level: Diesel engines can be louder than gasoline engines, particularly when idling or during cold starts. This may be a concern for those who prioritize a quiet driving experience.

The Mercedes-Benz ML350 and GL320 with the 3.0L V6 Bluetec diesel engine offer a unique combination of fuel efficiency, power, durability, and luxury. While there are some potential drawbacks, such as higher upfront costs, more frequent maintenance, and potential complexity, the benefits may outweigh the disadvantages for those who value fuel efficiency, strong performance, and a luxurious driving experience. Ultimately, the decision to purchase this vehicle depends on an individual's priorities, budget, and driving habits. If fuel efficiency, power, and luxury are top priorities, the Mercedes-Benz W251 series with the Bluetec diesel engine is a compelling choice.

Details:

Item may show light scuffs, scratches or other imperfections as a result of this being used part. 07-13 Mercedes W251 R320 E350 ML350 GL320, 3.0L V6 BlueTEC Diesel Engine Motor, 642.950 OEM 91k,: runs good. Note: Engine will fit E-Class. Please, do not purchase parts just to check and diagnose your vehicles problem.

Large items include: hood, door shell, fender, engine, transmission, trunk hatch, windshield, bumper, reinforcement clip, sub frame, roof, quarter apron, gas tank, etc. All of the parts are tested either before or after removal from vehicle. Compression tested. But both oil pans pump will need to changed.

Came off of R320 with 91k miles. Shipping cost or carrier may change, based on final destination.

part #: 6420106945 prices

• $649.95-$4897.00

specifications grokengines:

• for models: R320, Ml350, Gl320
• for makes: Mercedes
• for years: 2007-2013
• mpn: 6420106945
• type: Complete Assembly
• oe/oem part number: A6420106945, A6420100214, A6420101017, A6420141502, A6420104028, A6420100621, A6420106107, A6420100921, A6420100521, A6420302601, A6420300901, A6420300403, A6420305220, A6420301818, A6420503601, A6420504601, A6420502801, A6420503501, A6460500249, A6421801600, A6421801410, 64295040634074, 642.950, A6421506733, A6420702295, A0029900022
• engine size: 3.0l
• fuel type: Diesel

general grokengines:

• condition: Used
• Car Truck Parts Accessories > Engines Engine Parts > Engines

payments grokengines:

• wallet: Apple-pay
• other
• credit card: Discover

offer grokengines:

• options: Ship-to-home
• best offers: True
• started: February 6, 2026
• quantity: 1
• availability: In Stock
• sold: 0

shipping grokengines:

• cost: $425.00
• class: Freight
• type: Fixed
• service: Flat Rate Freight

returns grokengines:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

seller grokengines:

• # reviews: 50317
• rating: 99.8%
• city: Kaufman, Texas

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