Experienced Diesel Technicians
ASE and OEM-trained techs averaging 14 years in heavy-duty bays.

Philadelphia, PA · Since 2001
Keeping your fleet moving with expert diesel repair, mobile truck service, emergency roadside assistance, preventive maintenance, and complete fleet solutions.
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Happy Customers
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Emergency Support
Why Choose Us
Every hour a truck is down costs you money. Our shop is staffed, stocked and scheduled around getting heavy-duty equipment back on the highway fast — and keeping it there.
ASE and OEM-trained techs averaging 14 years in heavy-duty bays.
A live dispatcher answers every call, day, night, weekend or holiday.
Most repairs finished same day, with parts sourced from local warehouses.
Flat-rate estimates approved before a single wrench turns. No surprises.
We manage PM schedules for fleets from 3 to 300 power units.
Cummins INSITE, Detroit DDDL, PACCAR Davie and JPRO on every bay.
24-month / 200,000-mile nationwide warranty on qualifying repairs.
4.9-star average across 900+ verified reviews from drivers and fleets.
Our Services
Twenty core service lines under one roof — plus mobile units that bring the shop to your yard or the shoulder of the interstate.
Factory-level scan tools read every ECM fault code so we fix the real cause, not the symptom.
Learn MoreIn-frame and out-of-frame overhauls on Cummins, Detroit, PACCAR, Volvo and CAT power.
Learn MoreManual, automated manual and automatic gearbox service, clutch jobs and driveline work.
Learn MoreAir brake systems, drums, shoes, S-cams, valves and ABS faults corrected to DOT standard.
Learn MoreAir bags, leaf springs, shocks, king pins and alignment corrections for a stable ride.
Learn MoreParasitic draws, wiring harness repair, lighting, sensors and starting-system troubleshooting.
Learn MoreRadiators, water pumps, EGR coolers, fan clutches and hose replacement to stop overheating.
Learn MoreHVAC leak detection, compressor replacement and full recharge for cab comfort.
Learn More
24/7 Roadside Assistance
Our emergency units are staged along the I-95, I-76 and I-476 corridors around the clock. One call reaches a live dispatcher who sends a fully stocked service truck with air, power, lighting and the parts most breakdowns need.
Emergency line: (267) 388-5642
Fleet Maintenance Programs
From three trucks to three hundred, we build a maintenance program around your routes, duty cycles and compliance calendar. You get predictable costs, documented service history and equipment that passes inspection the first time.

Predictive intervals and stocked parts cut unplanned outages by up to 30%.
PM A/B/C cycles planned around your dispatch calendar, not ours.
Federal annuals, pre-trip audits and CSA-focused component checks.
Fleet accounts jump the queue with reserved bays every week.
A dedicated account manager for approvals, parts sourcing and invoicing.
Digital service history and quarterly cost-per-mile reporting per unit.
How It Works
Talk to a live dispatcher — never a menu. We capture your location, unit and symptoms in minutes.
Certified techs run OEM-level diagnostics and send you a written estimate before any work starts.
Repairs completed with quality parts, torque specs and a 24-month nationwide warranty.
Road-test verified, documented for your file, and dispatched back to work the same day when possible.


About Our Company
LS Truck Repair opened its first two-bay shop in 2001 with one promise: treat a driver's truck like it's the only thing paying the bills — because it is. Twenty-five years later we run twelve heavy-duty bays, six mobile service trucks and a 24-hour dispatch desk serving commercial fleets and owner-operators across Pennsylvania, New Jersey, Delaware and Maryland.
Our technicians are ASE-certified and factory-trained on Cummins, Detroit, PACCAR, Volvo and CAT platforms. Every repair is documented, road-tested and backed by a 24-month / 200,000-mile nationwide warranty — the same standard we would want on our own equipment.
Gallery
Real work from our bays and our roadside units — engine rebuilds, brake jobs, diagnostics, fabrication and fleet service.








Reviews
A 4.9-star average across 900+ verified reviews from owner-operators, fleet managers and transportation companies.
“Blew a turbo hose outside Terrell at 2 AM. Their mobile tech had me rolling before sunrise and beat the tow bill by a mile.”
“We moved all 42 tractors onto their PM program. Downtime dropped 31% in the first year and the reporting makes my audits painless.”
“In-frame overhaul on a Detroit DD15 came back tighter than the shop that built it. Two years later, zero comebacks.”
“They diagnosed an intermittent electrical fault two other shops gave up on. Found a chafed harness in under three hours.”
“DOT annuals for 18 trailers done in two days, paperwork emailed the same afternoon. That's how it should work.”
“Their roadside unit showed up with the right air valve already on the truck. Ninety minutes total from phone call to rolling.”
“Honest estimates. They told me a repair could wait a month instead of upselling me. That earned every truck I run.”
“Reefer went down with a full load of produce. They had cooling restored on site and saved us a five-figure claim.”
Service Areas
Twelve heavy-duty bays in Philadelphia plus mobile units covering four states and the freight corridors that connect them.
Freight Corridors Covered
Primary shop: Philadelphia, PA · Mobile dispatch radius 150 miles · Long-haul roadside available on request.
FAQs
Straight answers about response times, coverage, brands and compliance.
Contact Us
Tell us what your truck is doing and we'll get a technician assigned. Broken down right now? Call the emergency line — it's answered 24/7 by a live dispatcher.
Live dispatch 24 hours a day. Certified diesel technicians, mobile service units and twelve heavy-duty bays ready in Philadelphia, PA.