We Keep Critical Industries Moving Forward

A subsidiary of Southern Devall, Devall Diesel was founded in 1994 as a small service operation focused on the inland marine market. In the years since, Devall Diesel has grown to be an industry leader dedicated to providing the engines, generators, and service that keeps a range of critical industries moving forward. Whether you’re a port engineer at a marine operations company or a heavy industry project manager, you can trust us to have everything you need to keep your diesel engines and generators running like clockwork.

Two Devall Diesel employees in white and green hard hats

Quality Products, Quality People

We offer a comprehensive portfolio of quality products, parts, and services backed by OEM-certified technicians and over three decades of experience. With our warehouses and service centers in Sulphur, Louisiana, and Port Arthur, Texas, we are ready to deliver an exceptional customer experience from the moment you contact us.

Two Strategic Locations

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Devall Diesel Services

Sulphur, LA

2244 Swisco RdSulphur, LA  70665

Mon-Fri 7am-4pm337-905-3520

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Groves, TX

6849 E Parkway StGroves, Texas  77619

Mon-Fri 7am-4pm409-962-8505

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Two Devall Diesel workers looking at a diesel generator

Join Our Team

Our employees will tell you that working at Devall Diesel is like a family. Discover our unique career opportunities and learn more about the many benefits of working with the industry leader.

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Get the Power and Performance You Want

Contact us today to find out more on how Devall Diesel can help you meet your goals with products that provide the power and performance you want, and need.

Let’s Work Together

A Devall Diesel technician taking apart a large diesel engine