Pick-up
Coordinate free equipment or component pick-up when applicable.
24-Hour Rush Repair
Independent Caterpillar service · Fontana, CA
Caterpillar Equipment Repair in Fontana
Caterpillar iron is built to be rebuilt — and that is exactly the work this shop exists for. Our Fontana crew repairs and rebuilds Cat dozers, excavators, wheel loaders, backhoes and support machines across engines, transmissions, final drives and hydraulics. We are an independent repair shop, not a Caterpillar dealer — owners come here for rebuild-depth work, honest inspection documentation, and turnaround that respects a production schedule.
Independent Caterpillar service · Fontana, CA
Cat systems we rebuild
Engines repaired and rebuilt, powershift transmissions and torque converters, final drives and steering systems on the dozer line, hydraulic pumps, cylinders and control valves across the excavator and loader lines, and undercarriage evaluation and repair. With machining and gear manufacturing in-house, components that are worn — or no longer stocked — get restored instead of stranding the machine.
Brands we serviceCaterpillar
Caterpillar Equipment Repair in Fontana · Fontana, CAThe independent-shop advantage
A Cat machine with good bones is worth real money, and a proper rebuild resets its productive life for a fraction of replacement cost. Our inspection documents the machine system by system — with photos and video — so the repair-versus-overhaul decision is yours, made on evidence. Free quotes, free pick-up and delivery when applicable, rush service 24 hours a day.
- Dozer repair — undercarriage, final drives, transmissions
- Excavator hydraulics, swing and travel systems
- Wheel loader drivetrain and hydraulic work
- Backhoe repair across all systems
- Engine repair and rebuilding
- Full reconditioning and overhaul
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 Caterpillar dealer?
No — LA Trucks and Tractors is an independent repair shop servicing Caterpillar equipment. We are not affiliated with Caterpillar Inc. or any dealer.
Do you rebuild Cat engines and transmissions?
Yes — engines, transmissions, torque converters and final drives are rebuilt in-house, including gear and shaft manufacturing.
Can you evaluate whether my Cat machine is worth overhauling?
Yes — the documented system-by-system inspection exists for exactly that decision, and it is free.
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.