Commercial Truck Repair, Service, & Maintenence in Fontana.

When things go wrong, they are normally unexpected and thus can cause a major headache for even the most experienced trucking company, thats were we come in. With over 150 technicians and 175 bays (as part of Velocity Vehicle Group), our truck repair center has dealt with every type of vehicle & issue that can happen. From medium duty, heavy duty and even severe duty trucks, we can help you get your commercial truck, bus or RV on the road as quick as humanly possible.

Heavy duty Truck repair

We offer repair and maintenance service for all makes of medium and heavy trucks from bumper to bumper.



We're happy to offer 24/7 (monday - friday) service at Velocity Truck Centers - Fontana, as well as convenient extended repair shop hours at our Whittier, Ontario & High Desert locations, too. We have fully trained technicians supported by an in-house training department and the most up-to-date tools, equipment, and facilities in Southern California and Nevada. Call any of our locations about designing a program to out-source your maintenance needs.


We are fully certified in Detroit Diesel, Mercedes Benz, CAT and Cummins warranty repairs, and are qualified for Allison maintenance and rebuild services (rebuild available in Whittier, Los Angeles).

Need Service? Schedule an appointment today >

In order to maintain our quality and to ensure our clients have the highest standard of work completed, we facilitate:

  • Over 60 bays

  • Fully experienced technicians

  • Fully qualified technicians - Freightliner certified, G2 certified, Cummins certified

  • Elite Support Certified

  • Fully equipped with necessary tools for repairs

  • 91% fill rate on part availability

  • Full time in-house trainer teaching all OEM training courses

  • Portable alignment machine

  • State of the art chassis dyno

  • Drive-thru lube-pit

  • Diesel Particulate Filter / DPF Cleaning & maintainance

  • Velocity task system to view truck repair status online (and receive automatic step by step email updates)

  • Full-time technician dedicated to Express Assessment

  • Pick-up & delivery (see manager for details), full time CDL drivers

  • Steam bay

  • Oasis Dealer

  • After Hours Support

Express Assessment

Need a truck diagnosed fast?
We offer Express Assessment!

When you have a problem with your rig, you need help right away to get back out on the road. You shouldn't have to wait for days just to find out that you needed a five-minute fix.

Thats why we participate in Freightliner Trucks Express Assessment Program.

Normally, if you take your truck to a mechanic you have to wait until everyone ahead of you is back on the road before you can even find out what's wrong with your truck. That means at best you are waiting for hours just to find out what you can do next and at worst you a lot of time waiting in line to fix a tiny problem. Either way that means you are sitting in a tech bay or customer lounge, and thus you aren't making money. When you bring your truck to one of our service centers with Express Assessment, we promise to try and find the problem within two hours of your arrival.

Express Assessment locations (Whittier & Fontana) have a senior technician always available to assess your truck within two hours of your arrival. After they find the problem, the tech can order any parts they need right away, so you will know how long everything will take right then. That means you can decide right away if you have to get a new truck out to you, have another driver take your load, or find a hotel for the night.

Elite Support

We're Elite Support Certified

Earning the Elite Support badge takes hard work and dedication to our customers. We are fully compliant with the Freightliner Elite Support requirements. What that means is superior customer service, higher quality and safety efforts, and a customer comes first attitude.

We  have the following features at our Los Angeles Fontana dealership for your convenience:

Customer Amenities:

  • Trailer spaces
  • Customer lounge
  • Free Wi-Fi
  • DirectTV
  • Free coffee
  • Vending machines
  • Microwave
  • Showers
  • Laundry room
  • Arcade machines
  • Shuttles to & from hotel
  • Lunch truck daily
  • Menus available in customer lounge for food delivery
  • Phones available





  • Ontario Mills

  • Citizens Bank Arena

  • K1 Speedway

  • Fontana Speedway

  • Victoria Gardens

Truck Service Department Forms

Credit Card Authorization Form Credit Application Parts Replacement Warranty Request Form

We're an Authorized Truck Repair Center for the following brands:

Truck Chassis:
Freightliner Truck Service   FCCC Truck Service   Sterling Truck Service   Western Star Trucks Service   Autocar Truck Service

Engines serviced:
Detroit Diesel Engine Service    Cummins Engine Service   Mercedez Benz Engine Service

Tranmissions serviced:
Eaton Transmission Service   Allison Transmission Service 

Differentials serviced:
Meritor Differential Service   Eaton Differential Service   Alliance Differential Service

oasis network