Heavy Equipment Repair
Bulldozers, excavators, skid steers and compact track loaders, wheel loaders, backhoes, motor graders, ag tractors, forklifts and more.
DetailsMobile Diesel Mechanic • South Texas
MONKEY WRENCH DIESEL SERVICES
VETERAN OWNED. VETERAN OPERATED. BUILT TO KEEP YOU WORKING.
WE COME TO YOU. WE GET YOU BACK TO WORK.
HONOR. SERVICE. PERFORMANCE.
Machine down? For service, call or text us at (361) 319-4720 — or open Request Service for quick contact options.
- Veteran Owned
- Veteran Operated
- Mobile Field Service
- Many Makes & Models
What we fix
Services overview
Heavy equipment, diesel trucks, hydraulics, engines and electrical — repaired where your machine sits. We are not limited to the machines shown here; we work on many makes and models.
Diesel Truck Repair
Heavy-duty and commercial diesel trucks: engine diagnostics, fuel, cooling and electrical troubleshooting.
DetailsHydraulic Systems
Pump diagnostics, cylinder repairs, hose and line repairs, valve troubleshooting and system pressure testing.
DetailsDiesel Engine Services
Diagnostics, fuel injection, high-pressure fuel pumps, turbochargers, cooling systems and component replacement.
DetailsElectrical & Computer Diagnostics
ECM scanning, fault codes, wiring and sensor troubleshooting, starting and charging systems.
DetailsAdditional Services
Preventive maintenance, oil and filter changes, brakes, pneumatic systems, A/C and HVAC, inspections, mobile field repairs and 24/7 roadside assistance.
DetailsWhy Monkey Wrench
Built to keep you working
01
We come to you
Mobile service means we bring the shop to your job site, yard or farm — less hauling, less downtime.
02
Veteran owned & operated
Run with the discipline and work ethic of military service: honor, service and performance on every call.
03
Troubleshooting focus
We work to find the real cause of the problem — with scan tools, testing and hands-on diagnosis — before replacing parts.
04
Many makes & models
Construction, ag and commercial diesel equipment. Not on a list? Ask — we likely work on it.
Real machines. Real work.
From the field
Photos from our own jobs — no stock images. See the full gallery.
Machine down? Let's get you back to work.
For service, call or text us with your equipment, location, and what you are seeing. Photos by text are welcome.