
Certified mobile diesel mechanic for semi trucks, fleets and heavy equipment. Call or text Herling — day or night, he comes to you.
From a breakdown on the shoulder to a full rebuild in the yard — Herling keeps semi trucks, fleets and heavy equipment running across South & West Texas.
Broken down on the highway or stuck in the yard, any hour? Herling rolls out and gets you moving again — day, night, weekends and holidays.
Keep your whole fleet on the road with priority response, scheduled service and one mechanic who knows your trucks.
In-frame work and complete rebuilds on every major heavy-duty diesel — heads, injectors, turbos and timing.
Full ECM fault-code scans and live data to pinpoint the real problem the first time — no guesswork.
Dozers, loaders and off-road diesel equipment serviced and repaired on your site — keep the job moving.
Oil and filter changes, PMs and DOT-ready inspections from a true diesel specialist — less downtime, fewer surprises.
Heavy equipment · diesel specialist — 24/7 roadside assistance plus full fleet service, repair and diagnostics.
Real jobs, real engines — pulled from Herling's own feed. Tap any photo or clip to open it full screen.











Call Herling Fleet Services and you get Herling himself — a certified master diesel technician who's spent years under the hood of just about every heavy-duty engine on the road.
No call center, no runaround. Whether it's one truck on the shoulder or a fleet that can't afford downtime, he brings the tools and the diagnostics straight to your location across South and West Texas, 24/7.
Based in the Rio Grande Valley and rolling wherever the work is — McAllen, Edinburg, Mission, Pharr, Harlingen, Brownsville, Laredo, Corpus Christi and beyond. Not sure if you're in range? Give him a call.
Call to check your areaYes. Herling Fleet Services runs 24/7 roadside assistance — day or night, weekends and holidays. Call or text (956) 962-1359 and we roll out to your truck across South & West Texas.
We're mobile across the Rio Grande Valley — McAllen, Edinburg, Mission, Pharr, Harlingen and Brownsville — plus Laredo, Corpus Christi and the wider South & West Texas region.
Semi trucks, fleets and heavy equipment, including Detroit, Cummins, CAT, Volvo, PACCAR, Mack, International, Hino and John Deere diesel engines.
Yes — we're fully mobile. We bring the tools, parts and diagnostics straight to your truck, yard or roadside location.
24/7 roadside assistance, fleet service and maintenance, diesel engine repair and rebuilds, computer diagnostics, heavy equipment repair and preventive maintenance.
Call or text anytime — 24/7. For non-urgent jobs, send the details and he'll get back to you.
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New jobs, trucks and rebuilds — straight from Herling's feed.