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 Texas and beyond.
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 — anywhere in Texas, 24/7 — and he'll travel out of state for the right job.
Based in the Rio Grande Valley and rolling wherever the work is — across South Texas, up through San Antonio, and anywhere in the state. Herling runs the South Texas freight corridors daily and takes long-distance and out-of-state jobs on request — he's traveled as far as the East Coast. 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 Texas.
We're based in the Rio Grande Valley — McAllen, Edinburg, Mission, Pharr, Harlingen and Brownsville — and mobile across all of Texas, from Laredo and Corpus Christi to San Antonio, Houston and beyond. We also take long-distance and out-of-state jobs on request.
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, text, or WhatsApp anytime — 24/7, day or night. Herling comes to you.
Call or text 24/7 — he brings the shop to you.
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New jobs, trucks and rebuilds — straight from Herling's feed.