Pick-up
Coordinate free equipment or component pick-up when applicable.
24-Hour Rush Repair
Independent Komatsu service · Fontana, CA
Komatsu Equipment Repair in Fontana
Top Notch Equipment Repair handles Komatsu Equipment Repair in Fontana the way a working shop should — the component or machine is opened, measured and rebuilt in-house, never shipped off and guessed at. Free inspection and quotes, free pick-up and delivery, 24-hour rush support.
Independent Komatsu service · Fontana, CA
Komatsu work we do every week
Equipment comes in dead and leaves working: the failure is documented, the repair is quoted from real measurements, and the machining, welding, grinding and rebuilding all happen in-house. Free pick-up and delivery keep the logistics off your crew, and rush work runs around the clock, every day of the year.
Brands we serviceKomatsu
Komatsu Equipment Repair in Fontana · Fontana, CABuilt for the big machines
A WA470 with a weeping lift cylinder or a PC machine with a tired swing motor needs a shop with machining depth, not just a parts account. We document the failure with photos and video, quote in writing, and rebuild to standard — with worn components measured and shown to you. Free pick-up and delivery when applicable, Monday–Friday 6 AM–5 PM regular hours, and a 24-hour rush line that runs 365 days a year.
- WA wheel loader hydraulic and drivetrain repair
- PC excavator pumps, swing and travel motors
- Cylinder rebuilding and re-rodding in-house
- Komatsu diesel engine repair
- Final drives, undercarriage and line boring
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 Komatsu dealer?
No — we are an independent repair shop that services Komatsu equipment. No affiliation is implied; the quality of the work is the whole pitch.
Do you rebuild Komatsu hydraulic cylinders?
Yes — cylinder disassembly, measurement, resealing, re-rodding and honing are done in-house, including large loader and excavator cylinders.
Can you service Komatsu forklifts too?
Yes — Komatsu forklifts, including engine, mast and hydraulic work, are serviced alongside the construction line.
Related services
Emergency breakdown? Call the 24-hour rush line.
(949) 400-2937Schedule service or open a repair order
Request a service call.
Tell us the make, model, symptoms, where the machine sits and how urgent it is. Your details open as a text to the shop, ready for you to review before you send.