Visit any construction site today, and odds are one or more machines on the job site will be made by Caterpillar. This company is known for producing high-performance machines that last for years. Many of these machines are powered by the 3406-engine made by the company.
The cat 3406b is one version of this engine that may be found in different industries. It is widely used in mining, construction, and forestry, and the same unit is also found in many heavy-duty trucks and motor homes. Over the years, Caterpillar has made several engine versions, with the 3406B being an improved version of the early 3406A unit.
How Does the 3406B Engine Improve on the 3406A Unit?
The 3406A engine was discontinued in 1987. During its 13-year run, it was used in construction equipment, generators, and heavy-duty vehicles. It offered six cylinders with a 14.6-liter displacement, producing 310 to 425 horsepower and 1090 to 1460 lb-ft of torque.
When Caterpillar upgraded to the 3406B, it kept the same displacement while increasing the horsepower to 350 to 525. Torque also increased to 1350 to 1750 lb-ft. The company manufactured this engine from 1987 to 1993, and it is still found in some heavy machinery and heavy-duty trucks today. In the mid-1990s, the company replaced the 3406B with the 3406E, but people still love the B version.
Emissions Regulations
Why would Caterpillar replace something so popular with its customers? Updated emissions regulations issued by the United States Environmental Agency forced the company to make this change. If it failed to update the engine, it would no longer be able to sell in the country. The 3406E complied with the updated regulations by reducing emissions and improving fuel efficiency. However, the company refused to compromise on engine performance, something customers appreciated.
Additional Upgrades
The Caterpillar 3406E engine was more reliable and durable than its predecessors. The company knew where improvements were needed and ensured the new model included those improvements. The E version also increases power and torque while making the engine easier to service and maintain.
The E version has an advanced electronic control module that provides mechanics with detailed information about the machine’s operation and any issues. It also has a modular architecture for simplified service and maintenance. The updated design allows owners to experience less downtime and pay less for maintenance. However, this doesn’t mean customers have given up on the 3406B. Many machines still have this engine, and the owners prefer to keep it that way.
Repairing the Engine
For those with a 3406B engine, the day may come when it needs to be rebuilt. During this process, a mechanic rebuilds all major engine components to address worn and damaged components. Once the work is complete, the engine is tested to ensure it runs properly and meets performance specifications. Thanks to the comprehensive process used, customers can feel confident the engine will perform as intended.
The 3406 engine remains a workhorse in the construction industry and many other industries. It is known for its reliability and durability. Many owners today choose to overhaul an existing 3406B engine because they love all it offers. However, other 3406 engines may also be considered, as the different versions have varying specifications and applications. Research all options to find the one that is right for your needs.
