Our Heavy-Duty Diesel Mechanic Services in Arizona
Our diesel mechanic team at Arizona Fleet Service offers the best solutions for your heavy-duty truck repair and maintenance services. With extensive coverage throughout Arizona, our mobile diesel mechanics come to your location to perform a wide range of truck repair & fleet services. From bus & RV repair, to DOT inspections and preventive maintenance, trust Arizona Fleet Service to get your commercial vehicles running smoothly again. With a full-service repair shop in Prescott Valley, and mobile mechanics positioned in Phoenix, Tucson & Tempe, we're capable of providing comprehensive repairs throughout Arizona. So if you're in need of a professional heavy-duty diesel mechanic in Arizona, call us today for service!
Contact UsBus Repair & Maintenance

Arizona Fleet Service provides some of the best bus repair and maintenance services across Arizona including Prescott Valley, Tempe, Tucson, and Phoenix. Whether you need your air suspension repaired or your buses proactively maintained, we’ve got you covered.
DOT Inspection
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Here at Arizona Fleet Service, we offer 3 different DOT inspection types. Annual State DOT Inspections, Federal DOT Inspections, and BIT inspections. Why wait at an official DOT facility when you can make an appointment with us instead? Skip the line and get personalized service here at Arizona Fleet Service. Find us across Arizona including Phoenix, Tempe, Tucson, and Prescott Valley.
General Diesel Repair

Although heavy-duty diesel engines are generally very durable, they can still break down and need repair. Whether it be due to poor preventive maintenance or factors out of your control, you can rest assured knowing we here at Arizona Fleet Service have your back.
Mobile Truck Repair

If you're a truck driver in Tucson, Tempe, Phoenix, or Prescott Valley in Arizona in need of reliable mobile truck repair, look no further than Arizona Fleet. Here at Arizona Fleet Service, we understand that it can be difficult to move heavy-duty trucks and equipment around. Why pay hefty tow truck bills when you can call us instead? Whether you’re on a job site or at your house, we’ll come to you and perform mobile truck mechanic repairs and maintenance of all kinds.
Preventive Maintenance

In order to lengthen the lifespan of your vehicle and save yourself money, it’s vital that you perform adequate preventive maintenance on your heavy-duty vehicle. Here at Arizona Fleet Service, we offer a wide range of preventive maintenance services that are sure to meet your every need.
RV Repair and Maintenance

Do you own an RV that needs repair or maintenance? Well, if so, you’re in luck! Here at Arizona Fleet Service, we offer a wide range of repair and maintenance services for RVs of all kinds! Give us a call today and we can discuss which options would benefit you and your RV best.
Roadside Assistance

If you're a truck driver in Tucson, Tempe, Phoenix, or Prescott Valley in Arizona in need of reliable roadside assistance services, look no further than Arizona Fleet Service. We specialize in providing top-notch mobile roadside assistance services specifically tailored for trucks. Our team of skilled technicians is well-equipped to handle a wide range of truck-related issues, ensuring that you can get back on the road as quickly as possible.
Welding & Fabrication

Do you have metal components that need to be repaired? Is your frame rusted out? Maybe you have cargo mounts that need to be installed? Regardless of your need, you can rest assured knowing Arizona Fleet Service has fantastic welding and fabrication services.