Pick-up
Coordinate free equipment or component pick-up when applicable.
24-Hour Rush Repair
Independent Freightliner service · Fontana, CA
Freightliner Truck Repair in Fontana
Freightliners are the working fleet of the Inland Empire — Cascadias on every freeway, M2s on every delivery route. Our Fontana shop repairs Freightliner trucks across the range: Detroit DD13/DD15 and Cummins engines, DT12 and Eaton transmissions, aftertreatment and electrical systems, chassis and brakes. Independent shop, not a Freightliner dealer — fleet-grade work without fleet-dealer lead times.
Independent Freightliner service · Fontana, CA
Freightliner work we do every week
Engine diagnosis and repair including in-frame work; DT12 automated transmission service; one-box aftertreatment faults traced properly; differential and driveline rebuilding; air disc and drum brake systems; and the multiplexed electrical faults modern Cascadias collect. High-mile fleet trucks are our daily bread — the process is documented, quoted in writing, and built to turn trucks around.
Brands we serviceFreightliner
Freightliner Truck Repair in Fontana · Fontana, CAWhy Freightliner owners run to Fontana
Dealer diesel shops book out deep and price like it. Here the standard is the same and the process is transparent: teardown documented with photos and video, worn parts measured and shown to you, a written quote before work begins, and free pick-up and delivery when applicable. Regular hours Monday–Friday, 6 AM–5 PM — and the 24-hour rush line runs every day of the year, because trucks earn nothing parked.
- Detroit DD and Cummins engine repair
- DT12 and Eaton transmission service
- Aftertreatment and derate diagnosis
- Differential and driveline rebuilding
- Brake, air and chassis systems
Our 8-step repair process
A clear path from the first call to a tested component or machine returned to work.
Inspection
Disassemble and evaluate the complete failure.
Photos & video
Document condition and findings for a clear repair conversation.
Repair quote
Define the recommended work and quote before proceeding.
Approval
Confirm scope, urgency and the practical path forward.
Manufacturing
Machine, weld, rebuild or reverse engineer required components.
Testing
Verify operation and workmanship before release.
Shipment
Return the completed component or equipment to service.
Frequently asked questions
Are you a Freightliner dealer?
No — we are an independent repair shop that services Freightliner trucks. No affiliation is implied.
Do you work on M2 medium-duty trucks?
Yes — M2 and other Freightliner medium-duty models, including Cummins power, transmissions and chassis systems.
Can you handle fleet maintenance volume?
Yes — fleets are welcome; each unit gets the same documented inspection and written quote.
Related services
Emergency breakdown? Call the 24-hour rush line.
(949) 400-2937Schedule service or open a repair order
Request a service call.
Include the make, model, symptoms, location, urgency and preferred service time. Your details open in a text to John so you can review them before sending.