Collection
Where it applies, we arrange collection of your equipment or component at no charge.
24-Hour Rush Repair
Fontana, CA · Independent Kenworth truck service
Kenworth Truck Repair in Fontana
Kenworth T680 tractors run the interstates out of the Inland Empire while the T800 and W900 handle the vocational heavy lifting, and sooner or later all of them need the same thing: one shop that can cover engines, gears and aftertreatment without sending anything out. Our Fontana shop repairs Kenworth trucks from end to end — PACCAR MX and Cummins power, Eaton transmissions, differentials rebuilt in-house, since gear work is the trade this business was founded on, and chassis systems. We are an independent shop, not a Kenworth dealer.
Fontana, CA · Independent Kenworth truck service
The Kenworth jobs that fill our week
Engine repairs and in-frame rebuilds; transmission and clutch servicing; aftertreatment diagnosis, with DPF, SCR and DEF faults and derates traced back to their cause; differential and driveline rebuilding; air, brake and suspension systems; and hydraulics for vocational bodies and PTO equipment. Fleet truck or owner-operator truck, the routine never changes: a documented teardown, a quote in writing, and work done to rebuild standard.
Makes we work onKenworth
Kenworth Truck Repair in Fontana · Fontana, CAWhy Kenworth 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.
- Repairs and rebuilds for PACCAR MX and Cummins engines
- Servicing for transmissions, clutches and drivelines
- Differential rebuilds handled in-house
- Aftertreatment faults and derates traced
- PTO and hydraulic systems for vocational 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 Kenworth dealership?
No — ours is an independent repair shop that looks after Kenworth trucks, with no dealership affiliation implied.
Do fleet Kenworths come to you?
Yes — individual trucks and fleets alike, with the same documented process and a written quote for each unit.
Will you rebuild the differential in a Kenworth?
Yes — rebuilding differentials and gears is core work here, and it all happens in-house.
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.