Mobile Truck Repair Jacksonville FL 24/7 Diesel Mechanic | Semi Truck Repair



24/7 Mobile Truck Repair in Jacksonville, Florida
"Reliable 24/7 Truck Emergency Roadside Assistance"
"Efficient Truck Fleet Maintenance Solutions"
"Professional Semi-Truck & Trailer Repair"
"Skilled Mobile Diesel Mechanics"

At JAX24 Mobile Semi Truck Repair LLC, we provide professional mobile truck, semi truck, and commercial vehicle repair services across Jacksonville, Florida. Our team of certified diesel mechanics specializes in keeping heavy-duty trucks, trailers, RVs, and fleet vehicles safe, reliable, and compliant with DOT regulations.
We understand that truck downtime can cost time and money. That’s why we offer 24/7 mobile truck repair and emergency roadside assistance, responding quickly to breakdowns at highways, truck stops, warehouses, or job sites throughout Jacksonville. Our mobile service trucks are fully equipped for engine repair, brake service, battery replacement, electrical diagnostics, steering and suspension repair, tire service, air conditioning repair, exhaust system work, and more.
Our comprehensive services also include fleet truck maintenance, trailer repair, DOT inspections, pre-purchase truck inspections, and heavy-duty diesel engine repair. We service all types of commercial vehicles including semi trucks, box trucks, dump trucks, refrigerated trucks, delivery trucks, and RVs.
Truck operators, fleet managers, and independent drivers rely on our fast response times, professional expertise, and reliable mobile repairs. With JAX24 Mobile Semi Truck Repair, you get a trusted Jacksonville diesel mechanic who keeps your vehicles on the road and your business running smoothly.
Whether you need emergency roadside assistance, preventive maintenance, or complex engine repair, our team is ready to provide expert solutions. We are committed to maximizing uptime, improving safety, and extending the life of your trucks and trailers.
Call JAX24 Mobile Semi Truck Repair LLC today for fast, reliable, and professional mobile truck repair in Jacksonville, Florida. Keep your fleet moving with confidence.

“We provide 24/7 mobile truck repair along I-95, I-10, and throughout Jacksonville, Florida
Emergency Semi Truck Repair & Roadside Assistance for heavy-duty diesel repair and reliable semi-truck repair near your location in Jacksonville FL . Our team of specialists combines expertise with excellence, ensuring your vehicle is in the best hands. Utilizing the latest diagnostic technologies and top-quality parts, we guarantee efficient and Reliable Truck servicing and repairs tailored to your needs. Count on us to get the job done right every time.

Service Area
Mobile Truck Repair Serving Jacksonville, Orange Park & Northeast Florida including
St Augustine
St. Johns County, Baldwin , Yulee , Orange Park ,FL
Brunswick & Kingsland GA
Neptune Beach
Ponte VEDRA Beach,
and Jacksonville Beach
Palatka & Palm Coast FL
& major highways
I-95 , I-295 , I-10


In need of 24/7 Truck Repair in Jacksonville , FL _ JAX 24 Truck Service team is here to provide reliable roadside assistance at any hour. Whether you're facing a breakdown or need routine maintenance, we've got you covered. Trust us to get you back on the road quickly and safely

Frequently asked questions
1. What types of trucks do you repair?
We repair many types of commercial vehicles including semi trucks, box trucks, delivery trucks, dump trucks, RVs, trailers, and heavy-duty diesel vehicles. Our experienced mechanics are trained to diagnose and repair most major truck systems .We service many types of commercial vehicles including semi-trucks (tractor-trailers), heavy-duty trucks, medium-duty trucks, box trucks, dump trucks, work trucks, delivery trucks, flatbed trucks, tow trucks, utility trucks, buses, RVs, and commercial fleet vehicles. In addition, we repair and maintain dry van trailers, refrigerated (reefer) trailers, flatbed trailers, lowboy trailers, tanker trailers, container chassis, and other commercial hauling equipment.
Our technicians work on most major truck manufacturers, including Freightliner, Kenworth, Peterbilt, Volvo, Mack, International, Western Star, Isuzu, Hino, Ford commercial trucks, Chevrolet commercial trucks, and GMC medium-duty trucks.
We also specialize in servicing leading diesel engine brands, including Cummins, Detroit Diesel, Caterpillar (CAT), Paccar engines, Volvo engines, Mack engines, Navistar / International engines, Isuzu diesel engines, Hino engines,
2. Do you provide emergency roadside truck repair?
Yes. We provide 24/7 emergency roadside truck repair in Jacksonville FL. If your truck breaks down on the road, our mobile diesel mechanic can come directly to your location and perform repairs on site.
3. What truck repair services do you provide?
Our services include diesel engine repair, brake repair, battery replacement, electrical diagnostics, suspension repair, truck tires, trailer repair, DOT inspections, and fleet maintenance. We also provide full mobile diagnostics and roadside assistance
4. Do you offer mobile truck repair in Jacksonville FL?
Yes- JAX24 Mobile Semi Truck Repair provides fast and reliable mobile truck repair in Jacksonville, FL and surrounding areas. including major ZIP codes like 32202, 32204, 32205, 32206, 32207, 32208, 32209, 32211, 32218, 32219, 32221, 32222, 32225, 32226, 32227, 32233, 32244, 32246, 32250, 32254, 32256 and beyond.
Whether your truck breaks down on I‑95, I‑10, I‑295, US‑1, or in Jacksonville’s industrial and warehouse districts, our experienced mobile diesel mechanics will come directly to your location — including:
📍 Truck stops (e.g., around I‑95 & I‑10)
📍 Warehouses & distribution centers
📍 Construction sites
📍 Busy industrial areas
📍 Roadside breakdown locations
📍 Jacksonville Port Authority (JAXPORT) areas
5. How fast can a diesel mechanic arrive in Jacksonville?
We pride ourselves on fast response times! JAX24 Mobile Semi Truck Repair typically offers an ETA of around 30 minutes, depending on traffic and location.
We provide mobile truck repair service within a 100-mile radius of Jacksonville, FL, covering highways, truck stops, job sites, and surrounding areas
6. Do you service fleet trucks and commercial vehicles?
Yes. We provide fleet truck repair and maintenance services for businesses in Jacksonville. Regular maintenance helps reduce breakdowns and keeps trucks compliant with DOT regulations.
7. Can you repair truck brakes and suspension systems?
Yes. Our technicians specialize in brake repair, suspension repair, steering system repairs, and air brake diagnostics for commercial trucks and trailers.
8. Do you perform truck and trailer DOT inspections?
Yes. We perform professional DOT inspections for trucks and trailers to ensure vehicles meet safety requirements and remain compliant with federal regulations.
9. Do you offer truck diagnostics?
Yes. We use advanced diagnostic equipment to identify engine, electrical, and performance issues in modern diesel trucks. Accurate diagnostics help us repair problems quickly and efficiently.
10. Do you repair trailers?
Yes. We provide complete trailer repair services including brakes, lighting systems, suspension, axles, and structural components.
11. Do you repair diesel engines?
Yes. Our mechanics specialize in diesel engine diagnostics, injector repair, turbo repair, cooling systems, and fuel system service for heavy-duty trucks.
12. What areas do you serve around Jacksonville?
We serve 24/7 mobile truck repair throughout Jacksonville, Florida and the surrounding service area, including major ZIP codes like 32202, 32204, 32205, 32206, 32207, 32208, 32209, 32211, 32218, 32219, 32221, 32222, 32225, 32226, 32227, 32233, 32244, 32246, 32250, 32254, 32256 and beyond.
Whether your truck breaks down on I‑95, I‑10, I‑295, US‑1, or in Jacksonville’s industrial and warehouse districts, our experienced mobile diesel mechanics will come directly to your location — including:
📍 Truck stops (e.g., around I‑95 & I‑10)
📍 Warehouses & distribution centers
📍 Construction sites
📍 Busy industrial areas
📍 Roadside breakdown locations
📍 Jacksonville Port Authority (JAXPORT) areas
📍 Local highways and city streets
We offer fully equipped mobile truck repair service
13. Can you help if my truck battery is dead?
Yes. We provide truck jump start services and battery replacement for semi trucks, commercial trucks, and diesel vehicles
14. Do you repair truck air conditioning systems?
Yes. We provide truck AC diagnostics, refrigerant recharge, compressor replacement, and full air conditioning repairs to keep drivers comfortable on long routes
15. How can I request mobile truck repair service?
You can call 904-483-1754 to request mobile truck repair or roadside assistance from JAX24 Mobile Semi Truck Repair LLC. Our team is available 24/7 to assist drivers in Jacksonville.
16.What services does JAX 24 Mobile Semi Truck Repair LLC provide for heavy-duty trucks in Jacksonville?
At JAX24 Mobile Semi Truck Repair LLC, we offer a full range of heavy‑duty truck repair and maintenance services in Jacksonville, Florida, tailored to meet the needs of truck drivers, fleet managers, and commercial operators. Our highly trained diesel mechanics provide mobile service bringing expert solutions directly to your location when you need them most.
Our heavy‑duty truck services include:
🔧 Mobile Truck & Trailer Repair – On‑site repairs at truck stops, warehouses, job sites, or roadside locations.
🛠️ Diesel Engine Repair – Diagnostics, major engine overhauls, fuel system service, turbocharger repair, and emissions system repairs.
🔍 Truck Diagnostics – Advanced computerized diagnostics to pinpoint engine, electrical, and system faults.
🛞 Brake Service & Repair – Brake inspections, air brake repairs, ABS diagnostics, and component replacements.
⚙️ Steering & Suspension Repair – Shock, spring, linkage, and steering system services for safer handling.
🔋 Battery, Starter & Electrical Repair – Battery replacement, starter motor service, alternator repair, wiring, lighting, and electrical diagnostics.
🛠️ Cooling System Service – Radiator repair, water pump replacement, hose and belt service.
🛠️ Air System Repairs – Air dryer, compressor, and air leak detection/repair.
🛞 Wheel Services – Wheel seal repair, wheel alignment, and tire replacement.
🛡️ DOT Inspection & Compliance – Complete inspections to ensure safety and regulatory compliance.
📦 Fleet Maintenance – Scheduled preventive maintenance programs for trucks and trailers.
💨 Exhaust & Emissions Repair – DPF cleaning, DEF system repair, and EGR cooler replacement.
🧰 Trailer Repairs – Roof, frame, body, landing gear, electrical, and reefer unit repairs.
⚡ Advanced Systems Installation – ELD & camera systems, inverters, converters, and electrical accessories.
We serve a broad spectrum of heavy‑duty diesel trucks including semi trucks, commercial carriers, delivery trucks, medium‑duty vehicles, box trucks, work trucks, RVs, and trailers.
Does JAX24 offer radiator replacement for semi‑trucks in Jacksonville, FL?
Radiator problems like leaks, overheating, corrosion, and cracked cores can lead to significant engine damage if not addressed promptly. At JAX24 Mobile Semi Truck Repair, we offer fast, reliable radiator replacement and cooling system repair, including:
Complete radiator replacement with quality OEM or aftermarket units
Cooling system diagnostics to pinpoint leaks or blockages
Water pump, thermostat, and hose inspection/replacement
Pressure testing and system flushing
Mobile truck repair service — we can replace your radiator on‑site at a truck stop, job site, warehouse, or roadside location
Does JAX24 offer starter motor repair and replacement for heavy trucks in Jacksonville, FL?
Yes — JAX24 Mobile Semi Truck Repair LLC does offer starter motor repair and replacement services for heavy trucks in Jacksonville, FL.
Our certified diesel mechanics are experienced in diagnosing and repairing starter system issues on semi‑trucks, commercial trucks, box trucks, and other heavy‑duty vehicles. Starter problems like no‑start conditions, slow cranking, electrical faults, or worn starter components can leave drivers stranded — so we provide fast, reliable solutions to get your truck running again.
Here’s what our starter motor services include:
🔹 Starter system diagnostics to pinpoint failures
🔹 Starter motor repair when possible
🔹 Starter motor replacement with high‑quality parts
🔹 Battery and alternator inspection to ensure proper electrical support
🔹 Mobile service available — we can perform the repair on‑site at truck stops, warehouses, job sites, or roadside locations throughout Jacksonville
Does JAX24 offer brake repairs for semi-trucks in Jacksonville?
Yes — JAX24 Mobile Semi Truck Repair LLC does offer professional brake repair services for semi‑trucks and heavy‑duty commercial vehicles in Jacksonville, Florida.
Brakes are one of the most critical safety systems on any heavy truck. Worn or malfunctioning brakes can lead to reduced stopping power, increased accident risk, DOT violations, and costly downtime. That’s why JAX24 provides complete brake solutions tailored specifically to heavy‑duty trucking needs.
🛠️ What Brake Repair Services JAX24 Provides:
🔹 Brake system diagnostics — Using advanced tools to accurately identify problems
🔹 Air brake repair and adjustment — Servicing brake chambers, slack adjusters, valves, and more
🔹 Brake pad, shoe, drum & rotor replacement
🔹 ABS (Anti‑Lock Braking System) troubleshooting and repair
🔹 Air line and hose inspection/repair
🔹 DOT‑compliant brake inspections
🔹 Emergency roadside brake repair — Available 24/7 across Jacksonville
🔹 Mobile brake service — Technicians perform repairs at your location: warehouse, truck stop, job site, or highway
Does JAX24 offers fuel and coolant repair services for commercial trucks in Jacksonville?
✔️ Yes — JAX24 offers fuel system repair services for commercial trucks in Jacksonville.
✔️ Yes — JAX24 also performs coolant system maintenance and repair, including radiator work, leak fixes, and water pump service.
✔️ Services are available 24 hour mobile truck repair service throughout Jacksonville, FL
Did JAX24 Install Truck Camera Systems, ELD, and GPS?
Yes, JAX24 installs truck camera systems, ELD devices, and GPS tracking systems for commercial trucks in Jacksonville, FL.
“Does JAX24 Mobile Semi Truck Repair LLC offer competitive and affordable pricing for truck repair services in Jacksonville, FL?
Yes — JAX24 Mobile Semi Truck Repair LLC is known for providing competitive and fair pricing on truck repair and related services in Jacksonville, Florida.
🚚 Affordable & Transparent Pricing
JAX24 understands that truck breakdowns and maintenance can be costly for drivers and fleet operators. That’s why they work to deliver high‑quality repair services at prices that make sense for the trucking industry — whether it’s routine maintenance, emergency roadside repairs, major diesel engine work, or technology installations like camera systems and ELD/GPS units.
Here’s how JAX24 helps you save:
✔️ Competitive rates that reflect the value of expert workmanship
✔️ Clear pricing quotes — no hidden fees or surprise charges
✔️ Mobile service to reduce costly towing and downtime
✔️ Efficient diagnostics and repairs that prevent repeat issues
✔️ Flexible options for parts & labor on most services
Customers, including independent owner‑operators and fleet managers throughout Jacksonville and surrounding areas, report that JAX24 delivers excellent value for the service provided — combining skilled diesel mechanics, fast response times, and quality repairs at pricing that helps keep operations cost‑effective.
Do you offer 24/7 emergency roadside tire repair?
Yes! We provide 24/7 emergency mobile tire repair, so you’re never stuck waiting—day or night.
we carry a variety of new and used commercial truck tires to get you back on the road quickly
Do you offer mobile semi truck repair in Jacksonville, FL?
Yes! JAX24 Mobile Semi Truck Repair provides fast and reliable mobile semi truck repair in Jacksonville, FL and surrounding areas. Our technicians come directly to your location—roadside, truck stop, warehouse, or job site—so you don’t need a tow.
Do you carry parts on your service trucks?
Yes, our mobile units are equipped with common replacement parts and tools, allowing us to complete most repairs on-site without delays
Do you offer mobile RV repair in Jacksonville?
Yes! We provide mobile RV mechanical repair services in Jacksonville, FL and surrounding areas. Our technicians come directly to your location—whether you're at a campground, home, or roadside
We handle a full range of RV mechanical repairs, including:
Engine diagnostics and repair
Starter and alternator replacement
Battery and charging system service
Brake repair and inspection
Suspension and steering issues
Cooling system (radiator, water pump)
Belt, hose, and fluid services
We work on most major RV and motorhome brands, including:
Winnebago
Thor Motor Coach
Forest River
Jayco
Coachmen
Fleetwood
Tiffin Motorhomes Our technicians are experienced with major RV chassis and engine manufacturers, including:
Freightliner Custom Chassis
Ford (E-Series & F-Series)
Chevrolet / GM
Spartan Chassis
Cummins engines
Caterpillar (CAT) engines
Detroit Diesel