Differences between 3406b and 3406c

The Caterpillar 3406 engine is a popular diesel engine used in a wide range of applications, including heavy-duty trucks, industrial equipment, and marine vessels. It has been produced in several different versions, including the 3406B and the 3406C. While these engines share many similarities, there are some key differences between them.

Main Differences between 3406B and 3406C:

  1. Fuel System: The 3406B engine features a mechanical fuel injection system, while the 3406C engine uses an electronic fuel injection system. This change in the fuel system technology results in improved fuel efficiency and emissions control.
  2. Power Output: The 3406C engine is capable of producing more power than the 3406B. The 3406C has a maximum power output of 580 horsepower, while the 3406B has a maximum power output of 425 horsepower.
  3. Block and Head: The 3406C engine features a redesigned block and cylinder head, with improved coolant flow and increased strength. This allows the engine to handle higher power outputs and improved durability.
  4. Turbocharger: The 3406C engine features a larger turbocharger than the 3406B. This allows for improved airflow and increased power output.
  5. ECM: The 3406C engine is equipped with an electronic control module (ECM) that allows for precise engine control and monitoring. This results in improved engine performance and reduced emissions.

Overall, the 3406C engine represents an improvement over the earlier 3406B engine in terms of power output, fuel efficiency, and emissions control. The electronic fuel injection system, redesigned block and cylinder head, larger turbocharger, and electronic control module all contribute to this improved performance.

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