Honor
We do what we say and treat every customer and every machine with respect. Our word and our workmanship carry our name.
Monkey Wrench Diesel Services
ABOUT US
An American veteran-owned, veteran-operated mobile diesel repair business.
Who we are
Hard work. Integrity. Dependability.
Monkey Wrench Diesel Services is an American veteran-owned and veteran-operated mobile diesel repair business serving South Texas. We are committed to hard work, integrity, dependability and quality workmanship — on every truck, every machine and every call.
We bring the repair to you. Whether your equipment is parked at a job site, a ranch, a yard or on the side of the road, our goal is simple: find the problem, fix it right, and get you back to work.
We work on many makes and models of diesel trucks and heavy equipment, with a troubleshooting-first approach: understand what is actually wrong before parts get thrown at it.
Owner & Diesel Technician
Art Castaneda
Our values
Honor. Service. Performance.
Service
Serving others is where we came from and how we work. We show up, listen, and put your uptime and safety first.
Performance
The job is not done until the machine is working. We hold ourselves to a high standard of diagnosis and repair.
Philippians 4:13
Our faith is part of who we are, and Philippians 4:13 is on our logo as a reminder of the strength behind the work. We respect every customer, whatever your beliefs.