Collection
Where it applies, we arrange collection of your equipment or component at no charge.
24-Hour Rush Repair
Fontana, CA · Independent Freightliner truck service
Freightliner Truck Repair in Fontana
Freightliner is the Inland Empire's working fleet — Cascadia tractors on every freeway and M2 trucks on every delivery route. Across that range, our Fontana shop handles Detroit DD13 and DD15 engines and Cummins power, DT12 and Eaton transmissions, aftertreatment and electrical systems, and chassis and brake work. We are an independent shop rather than a Freightliner dealer — fleet-standard work without the lead times fleet dealers are known for.
Fontana, CA · Independent Freightliner truck service
The Freightliner jobs that fill our week
Engine fault-finding and repair, in-frame work included; servicing for the DT12 automated transmission; one-box aftertreatment faults traced through properly; differential and driveline rebuilding; air disc and drum brake systems; and the multiplexed electrical gremlins that modern Cascadia trucks tend to collect. High-mileage fleet trucks are our everyday work — everything is documented, priced in writing, and organised around getting the truck turned around.
Makes we work onFreightliner
Freightliner Truck Repair in Fontana · Fontana, CAWhy Freightliner owners choose Fontana
Dealership diesel bays tend to carry long waits and dealership invoices to match. We hold ourselves to that same standard of work, but you see everything: the teardown is photographed and filmed, worn components get measured and shown to you, pricing arrives in writing before a wrench turns, and pick-up and delivery cost nothing when applicable. We are open Monday–Friday, 6 AM–5 PM, and the rush line stays live 365 days a year — a parked truck makes nobody any money.
- Engine repairs for Detroit DD and Cummins power
- Servicing for DT12 and Eaton transmissions
- Tracing aftertreatment faults and derates
- Rebuilding differentials and drivelines
- Brake, air and chassis system work
How a repair moves through our shop — eight steps
From your first phone call through final testing, this is the route every job follows before it goes back into service.
Inspection
We take the unit apart and assess the full extent of the failure.
Photo & video record
Condition and findings get recorded, so the repair conversation stays clear and honest.
Written quote
The work we recommend gets defined and priced before anything proceeds.
Your approval
Scope, urgency and the sensible way forward get confirmed with you.
Making & rebuilding
Components get machined, welded, rebuilt or reverse-engineered as the job requires.
Testing
Operation and workmanship are verified before anything is released.
Return
The finished component or machine goes back into service with you.
Questions customers ask us
Are you affiliated with a Freightliner dealership?
No — ours is an independent repair shop that looks after Freightliner trucks, with no dealership affiliation implied.
Do M2 medium-duty trucks come to you?
Yes — the M2 and Freightliner's other medium-duty models, including their Cummins engines, transmissions and chassis systems.
Can you keep up with fleet maintenance demand?
Yes — fleets are welcome here, and every unit receives the same documented inspection and a quote in writing.
More services from our shop
Truck down right now? Reach the around-the-clock rush line.
(949) 400-2937Book a service visit or start a repair order
Ask for a service visit.
Tell us the make and model, what the truck is doing, where it sits, how urgent it is, and when you would like us there. The form opens everything as a text message to John, so you can check it over before you hit send.