MR. T Diesel Doctor & Fleet Care logo
Red diesel semi-truck in a professional repair shop
24/7 Emergency Diesel Service

Diesel Truck Repair & Fleet Care That Keeps You Moving

Fast diagnostics, maximum fleet uptime, 24/7 roadside support, and professional diesel repair from certified technicians. We get your trucks back on the road and your fleet running profitably.

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Certified Diesel TechniciansTrusted by fleets nationwide
Diesel Diagnostics
Fleet Maintenance
Roadside Assistance
Preventive Service
Commercial Trucks
How It Works

Back On The Road In Four Steps

No runaround, no guesswork. Our process is built to minimize your downtime and get you moving fast.

01

Request Service

Call us or submit the online form. Tell us your truck type, location and how urgent it is.

02

Get Diagnosed

Our certified diesel techs run a full diagnostic to find the real problem fast.

03

Approve Estimate

You receive a clear, upfront estimate. No surprises, no hidden fees, just honest pricing.

04

Back On The Road

We complete the repair to spec and get you and your fleet moving again quickly.

All Makes Serviced

Diesel Repair For Every Truck Brand

From Class 8 over-the-road tractors to medium-duty work trucks, our diesel doctors service every major make and engine platform. Pick your brand to see how we keep it moving.

Class 8 Heavy-Duty
FreightlinerDetroit DD13 · Detroit DD15 · Cummins X15
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Class 8 Heavy-Duty
PeterbiltPACCAR MX-13 · Cummins X15
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Class 8 Heavy-Duty
KenworthPACCAR MX-13 · Cummins X15
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Class 8 Heavy-Duty
VolvoVolvo D11 · Volvo D13 · Cummins X15
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Class 8 Heavy-Duty
MackMack MP7 · Mack MP8
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Class 6-8
InternationalInternational A26 · Cummins X15
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Class 8 Vocational
Western StarDetroit DD13 · Detroit DD16
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Class 3-5 Medium-Duty
Ford6.7L Power Stroke
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Class 3-5 Medium-Duty
RAM6.7L Cummins Turbo Diesel
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Class 3-5 Medium-Duty
Duramax6.6L Duramax
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Class 4-7 Medium-Duty
HinoHino J05 · Hino J08
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Class 3-7 Medium-Duty
IsuzuIsuzu 4HK1 · Isuzu 6HK1
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Class 8 Heavy-Duty
FreightlinerDetroit DD13 · Detroit DD15 · Cummins X15
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Class 8 Heavy-Duty
PeterbiltPACCAR MX-13 · Cummins X15
View Repair Services
Class 8 Heavy-Duty
KenworthPACCAR MX-13 · Cummins X15
View Repair Services
Class 8 Heavy-Duty
VolvoVolvo D11 · Volvo D13 · Cummins X15
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Class 8 Heavy-Duty
MackMack MP7 · Mack MP8
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Class 6-8
InternationalInternational A26 · Cummins X15
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Class 8 Vocational
Western StarDetroit DD13 · Detroit DD16
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Class 3-5 Medium-Duty
Ford6.7L Power Stroke
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Class 3-5 Medium-Duty
RAM6.7L Cummins Turbo Diesel
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Class 3-5 Medium-Duty
Duramax6.6L Duramax
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Class 4-7 Medium-Duty
HinoHino J05 · Hino J08
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Class 3-7 Medium-Duty
IsuzuIsuzu 4HK1 · Isuzu 6HK1
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Fleet Care

Plans Built For The Way You Run

Whether you run one truck or a hundred, we build a maintenance program that fits your operation and budget.

Owner-Operators

For the driver who is the business

  • Priority same-day scheduling
  • PM programs built around your routes
  • Digital maintenance records
  • After-hours roadside support
Most Popular

Small Fleets

For 2-15 truck operations

  • Volume service pricing
  • Dedicated fleet coordinator
  • Scheduled on-site PM visits
  • Compliance & DOT tracking

Commercial Accounts

For 15+ truck enterprise fleets

  • Custom SLA with guaranteed uptime
  • Fleet-wide telematics integration
  • Net billing & dedicated account team
  • Nationwide roadside coverage
Diesel mechanic performing emergency roadside repair at night
Broken Down? We Come To You

Emergency Roadside Diesel Repair, Any Hour

Stranded on the shoulder or stuck at a dock? Our mobile diesel mechanics are dispatched 24/7 to get you rolling again fast.

Call (754) 246-6477
Driver Trusted

What Drivers & Fleets Say

From owner-operators to commercial fleets, professionals rely on us to keep their trucks moving.

MR. T got my truck diagnosed and back on the road in hours, not days. These guys understand that downtime costs money.
Marcus R.Owner-Operator
We moved our 12-truck fleet onto their care plan and our breakdowns dropped dramatically. The preventive program pays for itself.
Dana K.Fleet Manager, Regional Logistics
Blew an air line at 2 AM on the interstate. Their roadside tech had me rolling again before sunrise. Lifesavers.
Tony V.Long-Haul Driver
Questions

Frequently Asked Questions

Keep Your Trucks Moving. Talk To Us Today.

Request service online or call our dispatch line now. Certified diesel techs are standing by 24/7.

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