Welcome To Diesel Freak!

Diesel Freak LLC is a group of talented mechanics that live, eat, sleep, and breath diesel engines. Diesel Freak the name came from a customer that always called us by this because of our nature and it has stuck.

We started development of our power harnesses back in 1996, After being frustrated with the electronic engines and the capability to adjust certain parameters. With the older mechanical fuel delivery systems we could control anything we wanted and the electronic engines limited that control. We figured out that with the use of wiring harnesses we could get some of that control back that we had lost. So after hours of testing and tuning we developed the Diesel Freak power harnesses.
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