Collection
Where it applies, we arrange collection of your equipment or component at no charge.
24-Hour Rush Repair
Fontana, CA · Independent Isuzu truck service
Isuzu Truck Repair in Fontana
The Isuzu NPR may be the hardest-working cab-over in America — landscape, delivery, service and refuse fleets run them until the wheels are nearly ready to fall off, then ask them for more. Across the range, our Fontana shop repairs Isuzu commercial trucks: the 4HK1 and 6HK1 diesels, the gasoline V8 models, automatic transmissions, aftertreatment, brakes and chassis. We are an independent shop, not an Isuzu dealer.
Fontana, CA · Independent Isuzu truck service
The Isuzu jobs that fill our week
Diesel engine repairs and servicing; transmission fault-finding with rebuild support; DPF aftertreatment faults and derates; brake, steering and suspension work on high-mileage cab-overs; differential servicing; and the electrical faults that show up on trucks living outdoors all year. An NPR earns route by route — we keep it earning, with inspections documented and quotes in writing.
Makes we work onIsuzu
Isuzu Truck Repair in Fontana · Fontana, CAWhy Isuzu 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 for 4HK1 and 6HK1 diesel engines
- Servicing for automatic transmissions
- Diagnosis covering aftertreatment and derates
- Chassis, brake and steering work on cab-overs
- Differential servicing and rebuild 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 an Isuzu dealership?
No — ours is an independent repair shop that looks after Isuzu commercial trucks, with no dealership affiliation implied.
Do gasoline NPR models come to you as well?
Yes — diesel and gasoline Isuzu NPR and NQR models alike, across engines, transmissions and chassis.
Will you look after landscape and delivery fleets?
Yes — Isuzu fleets are welcome, and every truck receives a documented inspection plus a written quote.
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.