Phoenix, AZ – Mobile Fleet Service
1021 N 59th Ave
Phoenix, AZ 85043
Contact Us
1 (602) 437-7231
Emergency Service Line
833-337-0002
About our Location:
Our Phoenix, AZ – Guaranteed Truck Service location is staffed by a certified team with decades of experience serving local fleets and businesses. We specialize in dependable truck repair, transmission service, and routine fleet maintenance tailored to the demands of Arizona roads. When it comes to servicing your fleet of vehicles, a solid maintenance program can extend the life of your equipment, minimize breakdowns and significantly reduce unexpected and expensive repairs.
Our ASE and EVT certified technicians handle everything from domestic vehicles to Class 8 trucks, including buses, sprinters, trailers, emergency vehicles, straight trucks, utility vehicles, fleet vehicles, tractors, and vans. We specialize in semi-truck service, Freightliner truck repair, and diesel engine repairs for top brands like Detroit Diesel, Cummins, and International. Whether you’re looking for diesel repair shops or truck trailer repair near your location, our experts are ready to assist.
If you're searching for "truck repair near me" or "diesel engine service near me," look no further—GTS is here to meet all your needs. GTS is large enough to handle all of your commercial fleet needs, yet small enough to provide the service and care that our customers expect. With strong community ties, we’re proud to support Phoenix’s commercial and industrial sectors.
Learn More About Guaranteed Truck Service
Have a question? We'd love to help. Feel free to email us at:
Get To Know Us:
The W.W. Williams Phoenix, AZ – Guaranteed Truck Service center offers a full range of on-site commercial fleet services in the Phoenix metropolitan area.
All mechanical services are performed by highly qualified and certified technicians using state-of-the-art Engine Diagnostics Code Equipment including Bosch ESI Truck and HD Diagnostics, ProLink,(s) Genesis, Tech II, and other OEM software kits. We conduct rapid and accurate diagnostic testing in the field quickly and efficiently and at your location. While we take care of the hard work, enjoy free coffee, Wi-Fi, and a comfortable lounge, all part of our “Consider It Done” approach.
Our Services
When it comes to servicing your fleet of vehicles, we understand the importance of a sound maintenance program. We make it simple. We come to you day or night. See how we can extend the life of your equipment, minimize break downs and significantly reduce the unexpected and expensive repairs:
- Fully Outfitted Service Trucks
- ASE Master Certified Technicians
- ASE Blue Seal of Excellence Certified Company
- On-Site Computer Diagnosis
Call Us:1 (602) 437-7231