Orange County Fleet Services
Mobile 24/7 Truck & Equipment Repair, Fleet Maintenance & Repair and Construction Equipment Maintenance & Repair in Fullerton, CA and the Surrounding Areas

A semi truck with its hood open is sitting on the side of the road.

Mobile 24/7 Truck & Equipment Repair

Roadside big rig, fleet and equipment service throughout Orange County.

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Fleet Maintenance & Repair

ASE Certified repair and service for all sizes of fleets from one to one hundred.

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Construction Equipment Maintenance & Repair

On-site or in-shop heavy equipment repair and maintenance services.

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Customer Reviews

We are grateful for your business and appreciate any feedback you provide us

  • Mobile Truck Repair
  • Mobile Heavy Equipment Repair
  • 24/7 Fleet Services
  • 24/7 Roadside Assistance
  • Semi Truck Repair
  • Big Rig Maintenance
  • Construction Equipment Repair
  • Backhoe, Bulldozer & Forklift Repair
  • City & Public Works Vehicles
  • Fleet Vehicle Maintenance & Repair
  • RV & Motorhome Repair & Service
  • Gas & Diesel Engine Repair & Maintenance
  • Transmission Services
  • Brakes, Steering & Suspension
  • Interstate Battery Sales
  • Engine Computer Diagnostics
  • Truck Tire Sales and Services
  • Preventative Maintenance Services
  • On-Site Maintenance
  • BIT & DOT Inspections
  • 12 Month Nationwide Parts & Labor Warranty
  • Environmentally Friendly Practices

Locally owned and operated Orange County Fleet Services provides complete construction equipment repair, semi truck repair and 24/7 roadside assistance for fleets in Orange County and beyond. As part of the Fleet Services International, LTD (FSI) network, our local heavy duty equipment service and big rig repair shop in Fullerton is one of 250 nationwide service centers with mobile workstations powered by Richard Petty Garage. Whether you need maintenance for a bulldozer, excavator, forklift or other construction equipment, or need semi truck repair in Orange County, our ASE certified technicians are equipped with the skills and tools to care for your vehicles in-shop or on the road. We service all small, medium and large fleets, ranging from one to hundreds. This includes rental car fleets, government fleets, heavy equipment vehicles and tractor trailer fleets. To learn more about our bumper to bumper fleet vehicle services in Orange County, or to request 24/7 roadside semi truck repair in Fullerton or a neighboring community, don’t hesitate to give our nearby commercial vehicle shop a call.

As an OC heavy equipment repair facility with a nationwide reach, the team at Orange County Fleet Services is proud to help national, regional and local owner/operators, fleet managers, government organizations and other businesses with their fleet vehicle maintenance needs. To provide the best possible truck and heavy equipment repair and maintenance services, we’ve invested in the latest diagnostic equipment, utilize fully equipped mobile workstations and maintain ASE certification, ensuring only expert hands work on your machines. From oil changes, DOT inspections and check engine light diagnostics, to big rig repair, diesel engine repair and on-site construction equipment repair, we do it all. Not only do we offer competitive pricing, fast turnaround times, and utilize environmentally friendly policies, but we back our services with a nationwide parts & labor warranty for all trucks, box vans, equipment, fleet cars and other commercial vehicles we service. Give OC Fleet Services a call at (949) 899-6802 to receive a quote for the cost of heavy equipment repair in Fullerton or to request immediate mobile fleet repair in Orange County and beyond.

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Orange County Fleet Services Blog

White semi-truck parked on a roadside shoulder with its front hood open, under a clear blue sky
By Orange County Fleet Services July 17, 2026
Learn about common big rig cooling system issues like leaks & thermostat failures. Contact Orange County Fleet Services for 24/7 mobile repair.
White semi-truck parked on a roadside shoulder with its front hood open, under a clear blue sky
By Orange County Fleet Services July 17, 2026
Learn about common big rig cooling system issues like leaks & thermostat failures. Contact Orange County Fleet Services for 24/7 mobile repair.
Blue semi-truck drives on a wet highway under a cloudy sky, with trees in the background.
By Orange County Fleet Service June 18, 2026
Learn common causes of semi truck tire blowouts, like improper inflation & overloads. Get 24/7 roadside assistance from Orange County Fleet Services.
Semi-truck driving on a wet highway with mountains and low clouds in the background
By Orange County Fleet Services May 25, 2026
Get expert semi truck fuel system repair. Our ASE certified technicians ensure your truck runs efficiently. Contact us for service!
Two emergency vehicles on a roadside beside a hillside, with a damaged semi-truck in the foreground.
By Orange County Fleet Services April 20, 2026
Read recent reviews for Orange County Fleet Services. Get 24/7 mobile truck repair & maintenance. Contact us for service!
A large semi-truck drives down a road at twilight with mountains in the background, viewed from inside another vehicle.
By Orange County Fleet Services March 17, 2026
Get expert big rig suspension repair to ensure safety & performance. Contact us for mobile services in Fullerton, CA!
A dark blue semi-truck with a large trailer driving on an open road beside green bushes under a clear blue sky.
By Orange County Fleet Services February 20, 2026
Get answers to FAQs about big rig cooling system repair. Learn signs of issues & maintenance tips. Contact us for 24/7 truck repair!
Close-up of truck wheels, revealing tires and shiny rims. The truck is gray, parked on a cobblestone street.
By Orange County Fleet Service January 22, 2026
Learn 5 tips to prevent big rig tire blowouts, including maintenance & safe driving. Contact us for expert roadside assistance!
Semi-trucks with open hoods parked outside on a sunny day. White and red trucks are visible.
By Orange County Fleet Services December 16, 2025
Learn 4 reasons to keep your semi truck's oil change schedule. Ensure engine health & reduce repair costs with our expert maintenance.
Blue semi-truck driving on a road with green bushes and blue sky.
By OC Fleet Services November 20, 2025
Learn essential tips for maintaining your semi truck’s engine. Contact OC Fleet Services for expert fleet maintenance in Orange County.
White van with orange stripes and
By OC Fleet Services October 23, 2025
Regular fleet vehicle maintenance is vital for safety & efficiency. Contact us for expert services to reduce risks & extend vehicle lifespan.