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Heavy-duty semi truck raised on a lift being repaired inside a modern diesel repair facility

Philadelphia, PA · Since 2001

Fast & Reliable Heavy Truck Repair Services

Keeping your fleet moving with expert diesel repair, mobile truck service, emergency roadside assistance, preventive maintenance, and complete fleet solutions.

  • Certified Mechanics
  • 24/7 Emergency Service
  • Fleet Specialists
  • Fast Response

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Repairs Completed

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Years Experience

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Happy Customers

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Emergency Support

Why Choose Us

Built For Trucks That Can't Sit Still

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.

Experienced Diesel Technicians

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

24/7 Emergency Support

A live dispatcher answers every call, day, night, weekend or holiday.

Fast Turnaround Time

Most repairs finished same day, with parts sourced from local warehouses.

Affordable Pricing

Flat-rate estimates approved before a single wrench turns. No surprises.

Fleet Maintenance Experts

We manage PM schedules for fleets from 3 to 300 power units.

Latest Diagnostic Equipment

Cummins INSITE, Detroit DDDL, PACCAR Davie and JPRO on every bay.

Warranty on Repairs

24-month / 200,000-mile nationwide warranty on qualifying repairs.

Customer Satisfaction Guaranteed

4.9-star average across 900+ verified reviews from drivers and fleets.

Our Services

Complete Heavy-Duty Truck & Trailer Repair

Twenty core service lines under one roof — plus mobile units that bring the shop to your yard or the shoulder of the interstate.

Engine Diagnostics

Factory-level scan tools read every ECM fault code so we fix the real cause, not the symptom.

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Diesel Engine Repair

In-frame and out-of-frame overhauls on Cummins, Detroit, PACCAR, Volvo and CAT power.

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Transmission Repair

Manual, automated manual and automatic gearbox service, clutch jobs and driveline work.

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Brake Repair

Air brake systems, drums, shoes, S-cams, valves and ABS faults corrected to DOT standard.

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Suspension Repair

Air bags, leaf springs, shocks, king pins and alignment corrections for a stable ride.

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Electrical Diagnostics

Parasitic draws, wiring harness repair, lighting, sensors and starting-system troubleshooting.

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Cooling System Repair

Radiators, water pumps, EGR coolers, fan clutches and hose replacement to stop overheating.

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Air Conditioning Repair

HVAC leak detection, compressor replacement and full recharge for cab comfort.

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Mobile truck repair van with amber warning lights assisting a broken down semi truck on a highway shoulder
45–60 minAverage roadside arrival

24/7 Roadside Assistance

Broken Down? We'll Come To You.

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.

  • Fast roadside response
  • Mobile mechanics
  • Jump starts
  • Battery replacement
  • Brake repair
  • Fuel delivery
  • Emergency diagnostics
Call Emergency Team

Emergency line: (267) 388-5642

Fleet Maintenance Programs

Fleet Programs That Pay For Themselves

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.

Row of commercial semi trucks parked outside a lit fleet maintenance facility at dusk

Reduce Downtime

Predictive intervals and stocked parts cut unplanned outages by up to 30%.

Scheduled Maintenance

PM A/B/C cycles planned around your dispatch calendar, not ours.

Fleet Inspections

Federal annuals, pre-trip audits and CSA-focused component checks.

Priority Service

Fleet accounts jump the queue with reserved bays every week.

Fleet Management Support

A dedicated account manager for approvals, parts sourcing and invoicing.

Maintenance Records

Digital service history and quarterly cost-per-mile reporting per unit.

How It Works

Four Steps From Breakdown To Back Hauling

  1. 1

    Call Us

    Talk to a live dispatcher — never a menu. We capture your location, unit and symptoms in minutes.

  2. 2

    Inspection & Diagnosis

    Certified techs run OEM-level diagnostics and send you a written estimate before any work starts.

  3. 3

    Professional Repair

    Repairs completed with quality parts, torque specs and a 24-month nationwide warranty.

  4. 4

    Back On The Road

    Road-test verified, documented for your file, and dispatched back to work the same day when possible.

Diesel technicians inspecting the chassis of a semi truck raised on a heavy-duty liftInterior of a professional truck repair shop with multiple service bays and semi trucks

About Our Company

Heavy Truck Specialists, Not General Mechanics

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.

25+ Years Of ExperienceFamily-owned and operating since 2001.
Certified MechanicsASE-certified, OEM-trained diesel technicians.
Latest Equipment12 heavy bays, OEM software and 80-ton lifts.
Customer-First ApproachWritten estimates and honest recommendations.
Quality WorkmanshipTorque-spec repairs and road-tested results.
Safety StandardsDOT and OSHA compliant procedures on every job.

Reviews

Trusted By Drivers And Fleet Managers

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.
Dwayne FosterOwner-Operator · Foster Hauling LLC
We moved all 42 tractors onto their PM program. Downtime dropped 31% in the first year and the reporting makes my audits painless.
Renee AlvaradoFleet Manager · Lonestar Freightways
In-frame overhaul on a Detroit DD15 came back tighter than the shop that built it. Two years later, zero comebacks.
Marcus BellMaintenance Director · Bell Regional Transport
They diagnosed an intermittent electrical fault two other shops gave up on. Found a chafed harness in under three hours.
Hector RuizOwner-Operator · HR Expedite
DOT annuals for 18 trailers done in two days, paperwork emailed the same afternoon. That's how it should work.
Sandra KimCompliance Manager · Vertex Logistics Group
Their roadside unit showed up with the right air valve already on the truck. Ninety minutes total from phone call to rolling.
Trevor NashDispatch Supervisor · Nash Bulk Carriers
Honest estimates. They told me a repair could wait a month instead of upselling me. That earned every truck I run.
Ana PetrovaOwner-Operator · Petrova Trucking
Reefer went down with a full load of produce. They had cooling restored on site and saved us a five-figure claim.
Bill TurnerOperations Manager · Turner Cold Chain

Service Areas

Where We Roll

Twelve heavy-duty bays in Philadelphia plus mobile units covering four states and the freight corridors that connect them.

  • Philadelphia, PA
  • Bensalem, PA
  • Levittown, PA
  • Chester, PA
  • King of Prussia, PA
  • Bristol, PA
  • Norristown, PA

Freight Corridors Covered

I-95 CorridorI-76 CorridorI-476 CorridorI-295 CorridorUS-1Roosevelt Blvd / Route 13
PhiladelphiaCamdenTrentonWilmingtonBaltimore

Primary shop: Philadelphia, PA · Mobile dispatch radius 150 miles · Long-haul roadside available on request.

FAQs

Questions Drivers Ask Us Most

Straight answers about response times, coverage, brands and compliance.

Contact Us

Request Service Or Get A Quote

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.

Average response time under 30 minutes during shop hours.

Truck down? Get a technician moving now.

Live dispatch 24 hours a day. Certified diesel technicians, mobile service units and twelve heavy-duty bays ready in Philadelphia, PA.

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