About JRUSH Diesel Services
An honest alternative to the traditional repair shop.
JRUSH Diesel Services was built on a simple idea: owner-operators and fleets deserve a better option than towing a truck to a shop and waiting in line. Mobile service isn't just a feature here — it's the whole business.
Meet Big John.
Behind JRUSH Diesel Services is a mechanical engineer and diesel technician known across the industry as "Big John" — a hands-on tech who's built a reputation on straight talk, real diagnostics, and showing up when he says he will.
What started as one mobile unit has grown into a network of independent diesel techs covering 13+ metro markets nationwide, all held to the same standard: fast, accurate diagnostics; honest pricing; and a detailed service record for every truck we touch.
If your diesel don't run, call Big John.
What We Stand On
Safety, accuracy, and a record you can trust.
Safety First
Every truck gets the same precaution and attention, whether it's a quick diagnostic or a full mechanical repair.
Latest Diagnostic Equipment
We use the latest diagnostic equipment to identify issues fast and accurately — minimizing your downtime.
Detailed Service Records
We keep a service record for every vehicle, so issues get caught early instead of becoming major problems.
Ready to talk to Big John?
Call, text, or send a message — dispatch responds fast.