Your 24-Hour Partner for Reliable Truck &
Trailer Repair — Anytime, Anywhere
At Heavy Duty Diesel Specialists, we provide top-tier repair and maintenance services for all diesel-powered vehicles and equipment, ensuring optimal performance and longevity.
Do you need help? Reach out to us right now!
Keeping Your Diesel Fleet Moving—No Delays, No Excuses.
At Heavy Duty Diesel Specialists, we’re more than just a repair shop — we’re your trusted partner in diesel performance and reliability. With years of hands-on experience, our team delivers expert diagnostics, repairs, and maintenance for all types of diesel-powered vehicles and equipment. Whether you manage a single truck or an entire fleet, we’re committed to keeping your engines running strong and your downtime minimal.
What We Do Best
After Treatment Truck Services
Ensure your emissions system is compliant and efficient — including DPF, SCR, and DEF system repairs.
Preventive Maintenance
Keep your fleet running longer and stronger with scheduled inspections and essential upkeep.
Onsite Mobile Repairs
We come to you — fully equipped for fast, efficient repairs at your location.
Truck Brake Services
Inspection, repair, and replacement of brake chambers, lines, and complete systems.
Truck Electrical Services
Diagnosing and fixing alternators, batteries, starters, and wiring issues.
24-Hour Truck Mobile Service
Breakdown at midnight? We’re there when others aren’t — 24/7 mobile truck repair.
Computer Diagnostics
State-of-the-art tools for accurate fault code analysis and quick fixes.
Tire Sales & Repairs (New/Used)
Road-ready tires at competitive prices are available onsite with repair options.
AC Repair
Stay cool with full-service air conditioning repairs for all truck makes.
Injector, Fuel Pump, Radiator Repairs
Reliable repairs for your engine’s fuel and cooling systems
Repair of Air/Fuel Lines, Brake Chambers, Airbags
Comprehensive component repair — fast, affordable, and done right.
Why Choose Heavy–Duty Diesel Specialists?
At Heavy Duty Diesel Specialists, we don’t just repair diesel engines — we keep your business moving. With a reputation built on precision, integrity, and real-world experience, we bring unmatched expertise to every job, big or small.
✅ Certified mechanics, trusted workmanship
✅ Rapid mobile response, 24/7 availability
✅ After treatment truck services
✅ Honest quotes, transparent communication
Customer Insights
6253 N Foster Dr, Baton Rouge, LA
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Working Hours - Mon-Sun: 24 Hours
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