Welcome to Diesel-Tools! We sell specialized tools that no one else has created,  to help fix issues that occur in Detroit diesel engines.

About Us

We are a small business based out of Tennessee. Our tools have helped hundreds of owner operators, independent dealers, and truck shops across North America. Our most popular product is the DD13/DD15 tool. It was created by the owner of Diesel-Tools, Todd Gass. He created it in order to fix a problem that he constantly saw occur in truck shops. The tool, while it may seem expensive, pays for itself after only one use. Therefore there is an immediate return on investment. 

DD13/DD15 Tool

The DD13/DD15 tool costs $349.99 plus shipping. It has an immediate return on investment.


If you have any questions, you can fill out our contact us form and we’ll help in anyway that we can. For help on how to use the tools, each tool comes packaged with a set of instructions. For visual instructions you can find those on our tool tutorials page.