Mercedes Benz M642 USED ENGINE
Mercedes-Benz OM642 3.0 V6 CDI Used Engine - Image 2
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Mercedes-Benz OM642 3.0 V6 CDI Used Engine

The Mercedes-Benz OM642 3.0 V6 CDI turbo diesel engine is used across a wide range of Mercedes-Benz passenger cars, SUVs and vans. Known for strong torque and durability, this engine family is a popular choice for diesel engine replacements. Multiple OM642 variants exist, so please confirm compatibility using your VIN or engine number before enquiry.

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Description

The Mercedes-Benz OM642 is a 3.0-litre V6 turbo diesel engine that delivers strong torque, smooth power delivery and long-term reliability. Mercedes-Benz designed this engine for a wide range of rear-wheel-drive and all-wheel-drive vehicles, so it quickly became one of the brand’s most widely used modern V6 diesel engines.

Because the OM642 provides strong pulling power and good fuel efficiency, it suits both passenger cars and larger SUVs. In addition, Mercedes produced several OM642 variants with different calibrations, emissions systems and ancillary layouts. Therefore, you must confirm the correct engine version before purchase to ensure compatibility.

We supply OM642 engines as a head, block and sump assembly unless stated otherwise. However, ancillary components such as turbochargers, intake systems, wiring looms, ECUs and fuel system components are not included unless specified. Nevertheless, we may supply additional parts on request depending on current stock.

Engine Specifications (OM642 Family)

  • Engine Code: OM642 (commonly referred to as M642)
  • Engine Type: V6 Turbo Diesel (CDI)
  • Displacement: 3.0 Litres
  • Fuel System: Common Rail Direct Injection
  • Induction: Turbocharged
  • Configuration Supplied: Head, block and sump
  • Condition: Used

Mercedes-Benz Models Using the OM642 Engine

The OM642 3.0 V6 CDI engine appears in a wide range of Mercedes-Benz diesel vehicles. For example, depending on model year and engine variant, you will find it in:

  • Mercedes-Benz E-Class (W211 and W212 diesel variants)
  • Mercedes-Benz S-Class (W221 diesel variants)
  • Mercedes-Benz CLS-Class (C219 diesel variants)
  • Mercedes-Benz ML-Class / M-Class (W164 and W166 diesel models)
  • Mercedes-Benz GL-Class / GLS (X164 and X166 diesel models)
  • Mercedes-Benz R-Class (X251 diesel models)

Even so, fitment still depends on the exact OM642 engine version. Therefore, always confirm compatibility using your VIN or engine number before purchase.

OM642 Engine Code Variants

Mercedes produced multiple versions within the OM642 engine family. As a result, different engine codes exist for various outputs and emissions configurations. Common engine codes include:

OM642.820 / OM642.830 / OM642.832 / OM642.836 / OM642.850 / OM642.870 / OM642.880 / OM642.910 / OM642.920 / OM642.940 / OM642.950 / OM642.960 / OM642.980

If you are unsure which OM642 variant your vehicle uses, contact us with your VIN or engine number and we will help you identify the correct match.

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