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Detroit® Manufacturing Plant

It demands to be seen.

Located in Redford, Michigan, the Detroit® Manufacturing Plant is a vast powerhouse that pumps out 400 engines, 250 transmissions and 1,300 axles every single day.

It’s tremendous in scale. Its legacy is bigger still. Since 1938, the Detroit® Manufacturing Plant in Redford has been building the best engines on the road. The plant is larger than 52 football fields, spanning more than three million square feet. It’s staffed by a highly-skilled workforce of 2,200 people who are now dedicated to building much more than just engines, and now is your chance to see it firsthand. Click below to take a 360-degree virtual tour of the Detroit plant.

welcome to innovation

It's tremendous in scale. It's legacy is bigger still. Since 1938, the Detroit® manufacturing plant in Redford, Michigan has been building the best engines on the road. It's more than three million square feet. That's larger than 52 football fields. It's staffed by an army of 2,200 people dedicated to the manufacture of more than 400 powerful and precisely engineered engines every day. And now’s your chance to see it.

TOS Area

What is the benefit of having our Customer Support Center (CSC) in the same plant that manufactures your powertrain? Our engineers are right here for you, giving you 24/7 access to their exceptional expertise.

Customer support center

Our CSC gives our customers 24/7 access to our expert engineers. You can call in about any problem you encounter on the road. This is also the command center for Detroit Connect®, our integrated telematics solution, featuring Detroit Connect Virtual Technician®.

Transmission Dyno Testing

Detroit® is the only manufacturer that “hot tests” 100% of its transmissions, which simulates driver on-the-road usage.

Turbo Line

The serious torque of Detroit® engines begins on our turbo line, where our engines are engineered to the utmost precision, built with state-of-the-art technology like our electron beam welder.

New Detroit® Axles

Owners of the Freightliner Cascadia® will benefit from our advanced, harder working tandem rear axles, designed for the heaviest of duties.

Pinion Machining

Our manufacturing process is focused on quality and efficiency. Our pinion gears are dry cut and precision ground to produce quieter, longer-lasting axles. This machine completes a pinion gear in less than seven minutes – done by hand this task would take seven hours.

Block machining

This is the beginning of the road for a Detroit® engine. Each of these durable blocks will become one of the 390 Detroit engines our plant produces each day.

Assembly Line

Quality is crafted into our process at every step throughout the build. Each proud member of our team – from assembler to manager – follows strict procedures to uphold Detroit®’s high quality standards.

Quality Gate

We use a variety of methods (both automated and human) to check the quality of our work. These consistent checkpoints provide us with valuable data to help make continuous improvements to our assembly processes.

Engine Dyno Testing

We prove the performance of every single engine (at idle, rated and peak torque) before it leaves the plant. We also validate the horsepower and fuel consumption.

loading Dock

We ship about 390 made-to-order engines every day. But before our products help drive the world economy, they’re shipped to Freightliner or Western Star truck manufacturing plants across North America. If you want one, place your order ASAP!

Vehicle Pilot Center

We are committed to proving the quality of the Detroit® product. The Pilot Center is where testing of engines, hardware and aftertreatment systems take place. We test them on the road, in every operating cycle and under every conceivable condition. And then we go the extra mile – literally. We drive our products to the hottest and coldest parts of North America for real-world testing.

Connect Today

Learn more by visiting your nearest Freightliner or Western Star dealership. 

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Detroit Connect Portal

The Detroit™ Connect portal is easy-to-use, one-stop-shop for all vehicle performance data gathered, transmitted and analyzed by Detroit Connect.  The portal gives you access to insights delivered by  Detroit Connect Virtual Technician℠. The Detroit Connect portal will also give you access to new features, such as Remote Updates, and Analytics, available late 2017.

Detroit connect portal login


All DDCSN content has been migrated to our DTNAConnect web portal. All information previously on the DDCSN is now on DTNAConnect. We have created a quick reference guide to help you locate the migrated content on DTNAConnect. Existing DDCSN login credentials will also work with DTNAConnect. Please work with your security administrators for login or content issues. If you do encounter any technical issues, please contact the Software Support Center at 855-639-8680 or


DTNA Connect Portal

DTNA Connect is the starting point for working with all brands and franchises that fall under the Daimler Truck North America umbrella: Detroit, Thomas Built Buses, SelecTrucks, Sterling, Freightliner, and Western Star. Here, you can access the full spectrum of online applications, resources and tools you need. Whether you use DTNA online resources to complete repairs, purchase parts, submit warranty claims, spec new vehicles or track the status of your truck orders, DTNAConnect streamlines the tasks and activities that are part of your daily work routine.

DTNA Connect Portal Login