Pick-up
Coordinate free equipment or component pick-up when applicable.
24-Hour Rush Repair
Independent Isuzu service · Fontana, CA
Isuzu Truck Repair in Fontana
Isuzu's NPR is the hardest-working cab-over in America — landscape, delivery, service and refuse fleets run them until the wheels nearly fall off, then ask for more. Our Fontana shop repairs Isuzu commercial trucks across the range: 4HK1 and 6HK1 diesels, gas V8 models, automatic transmissions, aftertreatment, brakes and chassis. Independent shop, not an Isuzu dealer.
Independent Isuzu service · Fontana, CA
Isuzu work we do every week
Diesel engine repair and service; transmission diagnosis and rebuilding support; DPF aftertreatment faults and derates; brake, steering and suspension work on high-mile cab-overs; differential service; and electrical faults on trucks that live outdoors year-round. NPRs earn by the route — we keep them earning, with documented inspections and written quotes.
Brands we serviceIsuzu
Isuzu Truck Repair in Fontana · Fontana, CAWhy Isuzu 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.
- 4HK1 and 6HK1 diesel engine repair
- Automatic transmission service
- Aftertreatment and derate diagnosis
- Cab-over chassis, brake and steering work
- Differential service and rebuilding
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 an Isuzu dealer?
No — we are an independent repair shop that services Isuzu commercial trucks. No affiliation is implied.
Do you work on gas NPR models too?
Yes — both diesel and gasoline Isuzu NPR/NQR models, engines, transmissions and chassis.
Can you service landscape and delivery fleets?
Yes — Isuzu fleets are welcome; each truck gets a 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.