Detroit Diesel is an America based diesel engine manufacturer. Their headquarters is in Detroit, Michigan, USA. Detroit Diesel is a subsidiary of a company named Daimler Trucks North America. The company manufactures chassis components, as well as heavy-duty engines for vocational commercial trucks and on-highway truck markets. Since 1938, Detroit has built over 5 million engines. And over one million of which are currently operational throughout the world. Some of the product lines of Detroit Diesel are Virtual Technician, transmissions, axles, and engines. Detroit axles, transmissions, and engines are used in multiple models of trucks, which are manufactured by Daimler Trucks North America.


In the year 1930, during the great depression, Detroit Diesel began its inception. GM Diesel Division was created by General Motors, which is the origin of the Detroit Diesel Corporation of today. Detroit Diesel has proved time and time again that they are a successful company. They continue to expand, as well as produce heavy-duty trucks, which are reliable.

The Great Depression was harsh on everybody. Hitler was attacking Poland (September 1939), and France and Great Britain declared war on Germany. Nevertheless, through the entirety of that, the GM Diesel Division presented their first series of engines, which was the Series 71. These engines were assembled because road building equipment, landing craft, tanks, and the stand by generators required two-cycle, lightweight, and compact machines. These engines were sold well indeed. In fact, they did so good that by 1943, GM Diesel hired 4,300 employees. All of the employees worked together and produced 57,892 engines all alone in 1943.

Just six years after, and finally, the war ended. GM realized that they are expected to extend if they plan to expand their company; this made them venture into the on-highway market. However, to make it, they needed to concoct an uncompromising engine that would meet the business needs. Along these lines, that is what they did. By 1955 they were offering those engines to clients who were beyond GM! Having countless clients, both new and old, implied that they required more space to grow. They were thinking of helping their clients if they come up with some issues while being on the highway. Thus, GM Diesel began to solely focus on worldwide distribution with developing dealers and authorized distributors to offer those types of services.

They were progressing well, and things just improved when they introduced their Series 53 engines. This happened way back in 1957. The Series 53 engines that they developed are a 2, 3, and 4-cylinder inline group of engines. They were used for the vehicles at the airports and ground support engines around the country to tow airplanes and haul baggage whenever needed. To drive logging skidders, 3-Cylinder Series 53N was being used. And for power backhoes at different construction sites. The 6V53T engines can be found in personal armored transporters for the Military. This series of engines were essential and powerful. So, what about the old 71 series? GM believed that it would be smart to put the series 71 engines to be used for both off-road and on-highway use. Their objective was to keep the entirety of the parts exchangeable. This was done so that when they come up with better and refined models, they could simply add more cylinders.

In 1956, GM Diesel converted into Detroit Engine Division, they merged their business to frame the Detroit Allison Division. This did many important things for them, and they had the option to increase their business edges in that decade alone significantly! In any case, when they presented the Series 60 Engines, things became better. The series 60 engines that they developed were four-cycle hardcore engines that would later turn into the picture of the organization. It was the first historically speaking engine to have electronic controls. Their objective with this engine was to satisfy the need for more eco-friendly and cleaner rock-solid engines. Soon after the launch, it became a massive hit as the heavy-duty diesel engines in the Class 8 truck market of North America!

In the long run, General Motors collaborated with Penske Corporation and made Detroit Diesel Corporation, which was the replacement to the Detroit Allison Division’s substantial diesel engine business. The arrangement gave Penske 60% ownership, which carried new pioneers to the organization. Everything was going well. The organization started working on the heavy-duty market share. Soon they were listed under the stock symbol "DDC" on the New York stock exchange.

However, Detroit Diesel Corporation knew that to proceed to extend and develop, they need to put some more money as investment and they will need more time as well. In this way, in 2005, Detroit Diesel Corporation contributed $350 million to restore and retool its plant. Along with all that was happening along the way, they knew that they needed to present another engine. This is when the company came up with a new engine. It was DD motor platform. It had DD15 engine in it. Soon after the launch of the new engine, they started becoming immensely famous. In just some time, Detroit Diesel Corporation was recognized for its tremendous Brownfield Redevelopment efforts. The engines that Detroit Diesel had were DD13, DD15, DD15TC, and DD16.

Detroit Diesel Corporation has unquestionably made some fantastic progress. They are a partner of Daimler Trucks North America LLC (referred to just as Detroit to help distinguish all the engines that will come up later) they have become a worldwide pioneer in the diesel engine industry. In North America, they have more than 800 authorized service outlets.


Detroit Diesel has been continuously experimenting with its diesel engine technology. All credit goes to the dedicated and hardworking engineers who have been working together to bring better results. The products that Detroit Diesel made met all the modern standards required for fuel emission control. These advancements allowed the company to provide optimum quality engines to their clients in order to offer their best support to industries throughout the world. These products have time and again proven to provide clients with efficient results. Detroit Diesel continues to develop its technologies in order to make its engines more efficient and productive.


When it comes to diesel engines, fuel gets sprayed into the combustion chambers. It is done via the fuel injector nozzles right when air has been placed in each of the chambers under pressure, which is hot enough to ignite the fuel. Take a look at the steps to understand the whole process properly.

You turn the key in the ignition.

Once you turn the key in the ignition, you wait for a while until the engine builds up heat. Turning the key starts a cycle where fuel is infused into the chambers under such high tension that it warms the air in the chambers. The time it takes to warm things up has been drastically decreased — presumably close to 1.5 seconds in a moderate climate.

Diesel fuel is less unpredictable than gas and is simpler to begin if the ignition chamber is preheated. Hence, producers initially introduced little shine plugs that worked off the battery to pre-warm the air in the chambers when you first started the engine. Higher injection pressure and enhanced fuel management techniques presently make enough heat to ignite the fuel without shine plugs. However, the attachments are still in there for emission control: The additional warmth they give helps copy the fuel all the more productively. A few vehicles actually have these chambers; others don't; however, the outcomes are as yet the equivalent.

The start light will begin.

Once you see it, you need to step on the accelerator and then turn on the ignition key. This will start the engine.

Fuel pumps deliver the fuels to the engine from the fuel tank.

On its way, the fuel will pass through a few fuel filters. The fuel filters clean the fuel before it passes through fuel injector nozzles. Filtration and maintenance are extremely important in diesel since fuel contamination can easily clog in the injector nozzles' tiny holes.

The fuel injection pump will then pressurize the fuel to get into the delivery tube.

The delivery tube that we are talking about is known as a rail. Rail will keep the fuel there under extremely high pressure, which will be consistent at 23,500 pounds per square inch. In some cases, it can go even higher. The fuel injectors feed the fuel as a fine splash into the cylinders' burning chambers through spouts constrained by the engine's control unit (ECU), which decides the weight, when the fuel spray happens, how long it keeps going, and different functions. Other diesel fuel systems could use other methods such as crystalline wafers, hydraulics, and more in order to control fuel injection.

Air, fuel, and fire meet together in the cylinder.

While the first steps get the fuel where it needs to go, another cycle runs at the same time to get the air where it should be for the last, blazing strategic maneuver.

On traditional diesel engines, the air comes in through an air cleaner like those in gas-fueled vehicles. Nonetheless, present-day turbochargers can smash more volumes of air into the chambers and may give more prominent force and efficiency under ideal conditions. A turbocharger can build the force on a diesel vehicle by 50% while bringing down its fuel utilization by 20 to 25 percent!

One needs to understand that diesel engines can work in two-stroke or four-stroke cycles! Let's get to know how they work.

Two-stroke engines

In the case of two-stroke engines, the entire cycle will happen as the piston starts moving up and down only once.

Exhaust and Intake: The air will be blown into the chamber that pushes the old fumes out through the valves. At that point, the channel and fumes valves close. The chamber climbs, thusly compacting the air and warming it up. At the point when the chamber shows up at the most elevated point of the chamber, fuel is implanted and rapidly lights.

Power: Once the fuel mixture and air burn, the cylinder is pushed down, which drives the crankshaft that ultimately powers the wheels.

Four-Stroke Engines

A four-stroke diesel motor works by rehashing a pattern of four strokes or otherwise known as phases, during which the cylinder goes here and there twice.

Intake: Chamber receives air through the opening in the valve as the cylinder slopes.

Pressure: After this, the inlet valve closes, and the cylinder climbs. This packs the air mix, warming it up. The fuel is mixed into the hot gas through the primary fuel mixture valve and suddenly ignites it. Dissimilar to a gas motor, no starting attachment is expected to get this going.

Power: As the air and fuel combination lights and consumes, it pushes the cylinder down, driving the driving rod that sends the wheels' power.

Exhaust: The source valve on the one end opens to let out the fumes gases. It gets pushed out by bringing the piston back.

This is the way both two-stroke and four-stroke diesel engines work. In comparison to four-stroke engines, two-stroke will be much lighter and smaller. They also tend to be better because they produce power just once while they go through the rotation process. However, two-stroke engines will need more cooling and lubrication.


Diesel gets extraordinary mileage. They commonly convey 25 to 30 percent better fuel economy in comparison to similarly performing gasoline engines. Diesel additionally can convey a lot or more efficiency than any of the traditional gasoline engines.

Diesel fuel is considered to be one of the most energy-dense fuels and efficient fuel that is available today in the market. Since it contains more usable energy than gas, it conveys better mileage. Diesel is free from distributors and spark plugs. Subsequently, diesel engines will never ask for ignition tune-ups.

Diesel engines are assembled all the more ruggedly to endure the afflictions of higher pressure. Therefore, they usually go much longer than gas-fueled vehicles before they require significant fixes.


Buying a Detroit diesel engine shouldn't be hard at all if you find the right dealer. Pay utmost importance to the reputation of the dealer. Ensure that the dealer is well-established and reputed. Whether you want to buy refurbished or fresh-new parts, always choose the right dealer.

When you choose the right Detroit diesel engines contractor, they will always offer a free and no-obligation consultation. This is how you will get to learn about the different products that they have. If you get in touch with someone who is only interested in selling their products and isn't really bothered about helping you out by offering a free consultation, better to look for someone else.

When it comes to buying used Detroit diesel engines, they will be sold with the model number. Few other information will also be provided, such as the previous application condition, year of fabrication, as well as operational hours. Without this information, the Detroit diesel engine that you are purchasing could turn out to be counterfeit. Get all the documents to ensure that the product you are buying is genuine.

The Detroit diesel engines that a seller will sell must complete a load bank test. This is done to make sure of its quality and reliability. The seller is responsible for reviewing and conducting the test.

Not just this, the Detroit diesel engines will come along with a standard warranty as well. Major parts will be covered in that warranty.

Here at Nationwide Truck Parts, we can help you choose the best Detroit Diesel engines. We sell all kinds of models. Some of the models that we currently have are:


Power 400 - 505 hp
Torque 1550 - 1750 lb-ft

Detroit DD15 is one of the latest engines by Detroit and is for the on-highway market. It has some specifications which are way better than most of the other Detroit engines.


  • A robust rear gear train
  • Three-stage integrated Jacobs® engine brake
  • Cooling system with shorter fan-on
  • 2017 Greenhouse Gas (GHG17) and 2016 OBD (OBD16) compliance
  • An Amplified Common Rail System (ACRS)


Power 400 hp
Torque 1750 lb-ft

The Detroit DD13 is best for vocational use, regional distribution, and less-than-load. It has multiple horsepower and torque.


  • Fuel-saving 12.8L workhouse
  • Smooth, efficient engine ride
  • Offers a B50 life of 1 million miles
  • Compliant with 2017 Greenhouse Gas (GHG17) and 2016 OBD (OBD16) ordinance
  • 6-blade engine


Power 400 hp
Torque 1750 lb-ft

The series 60 engine of Detroit Diesel was introduced first in 1987. This heavy-duty diesel engine was built by integrating electronic controls. The electronic control of DDEC VI monitors the engine and ensures peak engine efficiency.


  • Inline-six 4 stroke diesel engine with DDEC system controls
  • Electronic Variable Geometry Turbo (VGT)
  • Longer skirt profile on the one-piece, forged pistons for the 14.0L engine

Other used Detroit diesel engines that we sell are Detroit series 60 12.7, Detroit 14.0L, and more.