Pick-up
Coordinate free equipment or component pick-up when applicable.
24-Hour Rush Repair
Hydraulic cylinder bench · Fontana, CA
Clark Hydraulic Cylinder Repair in Fontana
Clark built its name on the forklift, and Clark lift, tilt and steer cylinders are still working in warehouses and yards across the Inland Empire — many on trucks old enough that the cylinder, not the truck, decides whether the machine stays economical. Our Fontana cylinder bench rebuilds Clark cylinders in-house: complete teardown and measurement, barrel honing, rods re-chromed or manufactured new, and a pressure-tested cylinder returned ready to lift.
Hydraulic cylinder bench · Fontana, CA
Forklift mast, lift and tilt cylinders — plus industrial Clark units
A drifting Clark lift cylinder is a safety problem before it is a leak problem. We check the full wear picture at teardown: piston bypass, barrel wear where the piston dwells, rod scoring from yard grit, and gland wear from side loading on mast chains and carriages. Seals are matched to pressure, fluid and duty; metal work is quoted only where measurements call for it. The same discipline covers Clark industrial and mobile cylinders beyond the forklift lines.
Brands we serviceClarkHysterYaleToyotaCrownEatonParker Hannifin
Clark Hydraulic Cylinder Repair in Fontana · Fontana, CAKeep the proven truck working with a properly rebuilt cylinder
Regular hours are Monday-Friday 6 AM-5 PM; rush service runs 24 hours a day, every day of the year. Quotes are free, pick-up and delivery are free, and every rebuilt cylinder is pressure-tested before it leaves — you talk directly with John Clark.
- Clark forklift lift, tilt and steer cylinder rebuilding
- Barrel honing and rod manufacture in-house
- Piston, gland and seal renewal
- Drift and bypass diagnosis from measurements
- 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
My Clark forklift load drifts down slowly. Is the cylinder repairable?
Usually, yes. Slow drift points to internal bypass — worn piston seals or barrel wear. We measure both at teardown and quote the repair that actually stops the bypass.
Can you rebuild cylinders from older Clark trucks?
Yes — older Clark units are regular bench work. Where seal kits or rods are no longer supplied, we match seals to specification and manufacture rods in-house.
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.