Mobile mechanic · San Antonio, TX
Diesel down? We roll out.
Mobile diesel and fleet repair across San Antonio.
Diesel pickups, work trucks and fleets across San Antonio. We bring the shop to the job site so your truck keeps earning.
18 yrs
in the trade
5.0★
customer reviews
40 mi
we come to you
Why Hill Country Diesel Mobile
Big trucks. Small downtime.
Your truck works hard. When it stops, so does the job. Hill Country brings a fully stocked service truck to your ranch, lot or job site and gets you running again without a tow.
Built for diesel
Cummins, Powerstroke and Duramax are all we have done for 18 years.
Stocked service truck
Filters, fluids, brakes and scan tools on board, so most jobs finish in one trip.
Fleet ready
Scheduled PMs on your lot, records per unit and one invoice a month.
How it works
No tow. No waiting room.
- 1
Call Ray and tell him the truck and the trouble.
- 2
We roll out to the ranch, the lot or the job site.
- 3
Fixed on the spot, with a written record for your files.
Services & pricing
Diesel work, priced straight.
Prices are starting points. The final price depends on the car.
Work Truck PM
$249
Keep a daily driver diesel on schedule.
- Oil & filter, up to 15 qt
- Fuel filter & water drain
- Belt, hose & brake check
- Code scan
Fleet Plan
from $95 / unit
Scheduled service on your lot, before the work day.
- Monthly or mileage-based PMs
- Per-unit service records
- Priority roadside calls
- One invoice a month
Emissions Fix
from $349
Clear the DPF or EGR problem for good.
- Full diagnostic
- Forced regen or clean
- Sensor testing
- Test drive & recheck
Diesel oil & filter service
Up to 15 qt, OEM filters, fuel filter check.
from $189
Diesel diagnostics
Injector, turbo and emissions codes, read and explained.
$149
DPF & EGR cleaning
Forced regen, sensor check and EGR service.
from $349
Brakes, heavy duty
Pads, rotors and calipers for 2500/3500 trucks.
from $449
Fuel system service
Fuel filters, water separator and injector testing.
from $229
Fleet PM inspection
DOT-style check with a written report per unit.
from $95
On the road
Wherever the car is.
Reviews
What customers say
5.0 from 3 reviews
Meet Ray
“A parked truck costs you money every hour. I get it rolling.”
Ray Delgado has spent 18 years under Cummins, Powerstroke and Duramax engines, first at a fleet yard and now out of a fully stocked service truck.
He works ranches, job sites and fleet lots from New Braunfels to Boerne, with the scan tools and parts to finish most jobs in one visit.
- 18 years in the trade
- ASE Diesel Certified
- Cummins & Powerstroke specialist
Ray Delgado, owner
Service area
San Antonio, New Braunfels, Boerne and the Hill Country, about 45 miles out.
- Diesel & heavy duty
- Fleet & commercial
FAQ
Good questions.
Can you work on site at a ranch or job site?
Yes. That is most of our work. We need room to get the service truck close and that is it.
Do you handle fleets?
We service fleets from 3 to 60 units with scheduled PMs, records per truck and one monthly invoice.
What about breakdowns?
Fleet customers get priority roadside calls around the clock. Everyone else, call and we will get there as fast as we can.
Which engines do you know best?
Cummins, Powerstroke and Duramax, plus most medium-duty diesels. Ask about yours.
Book
Ready when you are.
Call Ray. If the truck is down, say so and he will move you up the list.
Mon-Sat 6am-7pm, 24/7 roadside for fleets