Why You Need to Upgrade to a Tier 4 Yanmar Diesel Engine

Diesel engines are used for a wide variety of applications across many different industries. If you’re not utilizing reliable equipment, then you are putting your operations at serious risk. This is why you need to invest in one of Yanmar’s diesel engines.

By doing so, you are guaranteeing that your operations are not put in jeopardy by unreliable equipment.

Key Takeaways


  • The Environmental Protection Agency’s Tier 4 requirements for diesel engines were put in place to reduce the amount of black soot and nitrogen oxide released into the environment.
  • Yanmar’s diesel engines are manufactured according to Tier 4 regulations so that they leave behind a minimal carbon footprint while in use.
  • Yanmar offers two major categories of diesel engineswater-cooled engines and air-cooled engines.
  • Water-cooled engines require more parts and are therefore heftier. However, they are well-suited for applications requiring a degree of speed, and they are great at maintaining temperature and performance.
  • Air-cooled engines are more simplistic than their water-cooled brethren, as they require fewer parts in order to work. They are the picture of reliability and are ideal for less-intensive applications.
  • C&B Equipment is one of the nation’s leading distributors of industrial equipment. We also offer preventative maintenance programs to prevent unplanned downtime. Take a look at our selection of Yanmar diesel engines!

What Is a Tier 4 Diesel Engine?

A Tier 4 Diesel Engine is a diesel engine that meets the Environmental Protection Agency’s (EPA’s) Tier 4 diesel engine requirements.

The Tier 4 diesel engine requirements are currently the strictest standards that diesel engines are held to. The Tier 4 regulations began to be phased in starting in 2008, and they were not fully implemented until 2015.

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The purpose of the EPA’s Tier 4 diesel engine requirements is to limit the amount of particulate matter (more commonly referred to as black soot) and nitrogen oxide (NOx) released from diesel engines into the atmosphere.

The Tier 4 regulations have exceeded expectations. They have reduced the amount of black soot and NOx levels by 99% since 1996.

Types of Diesel Engines from Yanmar

Yanmar manufactures two major types of diesel engineswater-cooled and air-cooled. Both of these engine-types have their own advantages and are catered to particular applications. It all depends on what you need them for.

Water-Cooled Diesel Engines

Yanmar’s water-cooled diesel engines are designed for industrial and generator applications, and they are also available as a power pack. Water-cooled engines contain enclosed radiator systems that cool the engine when it gets too hot.

Additionally, these radiator systems provide extra insulation around the motor, which makes them quieter than their air-cooled cousins. Water-cooled engines are ideal for maintaining consistent temperatures, performance, and emissions.

The most significant difference between air-cooled and water-cooled engines (aside from the way they are cooled) is the disparity in horsepower.

Air-cooled engines never a horsepower higher than ten, whereas water-cooled engines have a minimum horsepower of eighteen and reach as high as 208!

Take a look at Yanmar’s selection of water-cooled diesel engines!

Air-Cooled Diesel Engines

Yanmar’s air-cooled diesel engines are not only Tier 4-compliant but Stage V-compliant as well. Because they are up-to-date with current regulations, as well as future regulations, you can feel confident that they will remain reliable for the duration of their lifetime.

The reliability of Yanmar’s air-cooled engines also lies in their simplicity. The internal parts and pieces that are needed for water- or liquid-cooled engines are not necessary for air-cooled engines. Fewer parts mean fewer problems and less maintenance in the future.

Air-cooled engines are smaller and less bulky than their water-cooled counterparts. They have a higher fuel economy, as 5-10% of their power isn’t spent maintaining an enclosed liquid cooling loop. Furthermore, there is no need to monitor coolant levels with an air-cooled engine.

Take a look at Yanmar’s selection of air-cooled diesel engines!

The Benefits and Applications of Diesel Engines

There are several benefits of diesel engines that cannot be found elsewhere. They are more rugged and durable than traditional gasoline engines. Additionally, diesel fuel auto-ignites, so there is no need for spark plugs.

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Past disadvantages of diesel engines have been rendered obsolete by modern technology and developments. Yanmar’s engines are quieter and require less maintenance than gasoline engines of the same size.

Industrial Applications

The advantages that diesel engines have to offer make them ideal for industrial applications. They are commonly used as mechanical engines and power generators. They are also used in mobile drives.

Industries that utilize diesel engines include construction, mining, medical, transportation, forestry, telecommunications, and agriculture. Locomotives, construction equipment, heavy-duty trucks, and some automobiles utilize them for their increased horsepower.

Why Should You Choose a Yanmar Diesel Engine Over Another Manufacturer?

For over ninety years, Yanmar has manufactured more than 15 million engines, ranging from 4.5 to 5,000 horsepower. Purchasing a Yanmar diesel engine guarantees that you are receiving a high-quality, reliable product that fully adheres to EPA guidelines.

Yanmar’s unparalleled level of experience and dedication to their craft makes them one of the most trusted manufacturers of engines and industrial equipment in the world.

Read about the 100-plus-year-long history of Yanmar!

C&B Equipment Is the Go-To Company for Industrial Equipment Repairs and Maintenance!

C&B Equipment is one of the country’s leading distributors of industrial equipment. In addition to industrial diesel engines manufactured by Yanmar, we also offer the following types of equipment.

C&B Equipment is a trusted provider of industrial equipment repairs and maintenance programs. Our services are designed to increase your uptime, productivity, and profitability.

Every minute of downtime during your operations is money out of your pocket. We want to ensure that that downtime is not caused by faulty equipment, which is why we offer preventative maintenance programs and full equipment installations and rebuilds.

Streamline your operations with our selection of Yanmar diesel engines!

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Reduce the risk of unplanned downtime with our preventative maintenance programs!


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