Komatsu loader cylinder
We rebuilt the failed hydraulic cylinder completely, and the following day the customer was up and running again.
Industrial repair you can rely on — 40-plus years of it
Building the machines that keep industry moving.
Industrial gearboxes, pumps, hydraulics, trucks, tractors and heavy equipment — Top Notch Equipment Repair repairs them, rebuilds them and manufactures what they need. A single call brings together emergency response, machining done in-house and full mechanical rebuilding.
Rush repair service, 24 hours a day
48 HR Rush Repair — Breaker Rebuilt & Working Again
A hydraulic breaker that was worn out arrived on a flatbed. The crew stripped it down, rebuilt it, painted it, mounted it and had it test-firing again — that is what rush service means here: emergency work turned around quickly, 24 hours a day, every day of the year.
Response within 24 hoursEmergency repair for industry
Logistics on usPickup and delivery when you need it
Manufacturing in-houseGears, shafts and parts no longer made
40+ yearsOf repair and rebuilding know-how
Gear Work Done Right Here
Genuine gear work on machines we own — worm gears, spiral bevel sets and helical gears, cut and finished under our roof in Fontana.
Getting to know Top Notch Equipment Repair
Repair, rebuilding and manufacturing for industry.
For more than 40 years the shop has served industrial and heavy-equipment customers, pairing hands-on field experience with machining, welding, grinding, fabrication and complete mechanical rebuilding.
Trucks, tractors, construction equipment, pumps, gearboxes, hydraulics and plant machinery — we take them all on, whether the job is a single failed component or an entire machine reconditioned end to end.
More Than 40 Years of Dependable Industrial Repair & Precision Manufacturing.
What We Do
Full coverage across gearboxes, pumps, hydraulics, equipment and rush repairs — pick a service to open its complete page.
Industrial Gearbox Repair & Gear Manufacturing
Pump & Vacuum Pump Repair Service
Hydraulic Repair & Full Rebuilding
Gear Manufacturing & Gear Re-Cutting
Heavy Equipment Repair
Equipment Overhaul & Complete Rebuilding
Reverse Engineering for Obsolete Parts
Rush Repairs for Emergencies
Pick-Up & Delivery at No Charge
How your repair moves through the shop
A single start-to-finish process: a quote at no charge, pick-up at no charge, a rebuild done in-house, and a machine tested before it goes back to work.
01Call us & get a free quoteWhen you call, have the make, model, symptoms, location and how urgent it is. You will talk directly with John Clark and receive an inspection and repair quote at no charge.
02Pick-up on usWe collect your equipment or component and deliver it back at no charge, bringing it into our Fontana shop without logistics eating your time.
03Teardown & rebuildEverything happens in-house: complete teardown, machining, welding, grinding and rebuilding — with gears, shafts and obsolete parts manufactured to specification when needed.
04Tested & returned to workNothing leaves until it has been checked. Rush work moves on the 24-hour emergency service, every single day of the year.
The industries that call us
Pick your operating environment to open a full page of coverage for gearboxes, pumps, hydraulics, rush repairs and the manufacturers behind them.
01 / Industry
Mining Equipment
Gearboxes, slurry pumps, conveyors and systems under heavy load. 02 / IndustryConstruction Equipment
Hydraulics, drives, tools, compressors and the gear that supports the crew. 03 / IndustryUtility's Equipment
Pumps for municipalities, blowers, reducers and utility fleets. 04 / IndustryConcrete Equipment
Pumps for concrete, mixer drives, rollers and airlocks. 05 / IndustryWater Treatment
Turbine, split-case, sewage, irrigation and process pumping. 06 / IndustryRefineries Equipment
Pumps for process work, blowers, vacuum systems and gear drives.Results that speak for the shop
Outcomes from recent Top Notch Equipment Repair work, documented customer by customer — real machines, real failures and returns to service you can measure.
CAT 305 repair
A mini excavator that would not run was operating again within two weeks — at half the cost the dealer had quoted for the repair.
Terex T340 crane
Engine, hydraulics, DEF, electrical and rotary-gear work, all finished on a rush timeline ahead of certification.
Questions customers ask us
What kinds of work does Top Notch Equipment Repair take on?
Every class of truck, tractor and heavy equipment — along with gears, gearboxes, pumps and hydraulic components — repaired, rebuilt and reconditioned at our Fontana shop.
Where will I find the shop?
14166 Whittram Ave, Fontana, CA 92335. From there we cover the Inland Empire, Los Angeles and Orange County, with pick-up and delivery available.
When are you open?
Regular shop hours run Monday–Friday, 6 AM–5 PM. Rush and emergency repair never closes — 24 hours a day, every day of the year, all 365 days.
Do quotes and pick-up cost anything?
No. Inspections and quotes are free, and so are pick-up and delivery where they apply.
Will you buy my used truck or equipment?
Yes. We purchase trucks and equipment in any condition, from everyday pickups up to large semis.
Repair pages by city, plus specialty guides
Pages for each city we serve, alongside in-depth guides written from the shop floor.
Rush repair, around the clock
Equipment down? This is where to start.
Call with the make, model, what it is doing, where it sits and how urgent the job is. John Clark himself will talk through the quickest sensible route to inspection, pick-up or repair.
Shop14166 Whittram Ave · Fontana, CA
When we answerRush response, 24 hours a day
Getting it hereFree pick-up & delivery
What it costs to askFree repair quotes