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Hydraulic cylinder bench · Hyco
Hyco Hydraulic Cylinder Repair in Fontana
Hyco builds the heavy welded cylinders found on mining and construction equipment, refuse trucks and industrial machinery — big-bore, high-pressure cylinders where a seal kit alone is rarely the whole repair. LA Trucks and Tractors repairs Hyco cylinders at our Fontana shop at 14166 Whittram Ave: cylinders torn down and measured, barrels honed, rods re-chromed or manufactured new in-house, pistons and glands renewed, and every rebuilt cylinder pressure-tested before it leaves.
Hydraulic cylinder bench · Hyco
Large-bore welded cylinders judged by measurement
A Hyco cylinder that has worked hard tells its story in numbers: bore scoring and ovality, rod chrome worn through at the working stroke, gland clearance grown past seal tolerance, piston wear letting fluid bypass. We document all of it at teardown and quote from the measurements — honing a barrel back to spec, re-chroming or manufacturing a rod, machining a new gland — rather than resealing a worn cylinder and calling it rebuilt. Contamination, the usual root cause, is named plainly so the next failure is not already scheduled.
Brands we serviceHycoCaterpillarKomatsuParker HannifinBosch RexrothEatonVickers
Hyco Hydraulic Cylinder Repair in Fontana · Fontana, CAHeavy cylinders need a heavy bench — and honest numbers
Regular hours are Monday-Friday 6 AM-5 PM; rush service runs 24 hours a day, 365 days a year. Pick-up and delivery are free, quotes are free and written from teardown measurements, and you talk directly with John Clark. A production machine with a cylinder on our bench is losing money by the hour, and we schedule it that way.
- Hyco welded cylinder rebuilding for heavy equipment
- Barrel honing and bore measurement to specification
- Rod re-chroming and new rod manufacture in-house
- Piston, gland and wear-band renewal
- Pressure testing on every rebuilt cylinder
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
Can you manufacture a new rod for a Hyco cylinder?
Yes — rod manufacture is core work for our shop. We measure the original, machine and chrome a replacement to the same dimensions, and fit it with new seals and wear bands.
Why did my cylinder fail again after a reseal?
Usually because the cause was never fixed — a scored rod, worn gland or contaminated oil destroys new seals quickly. We inspect rod, gland and barrel at teardown and quote the repair that stops the leak for good.
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.