The Alibaba store category list is explicit: Hydraulic Cylinder is one of Kyotechs' standing product lines, sitting alongside hydraulic pumps, motors and control valves. Complete cylinders are matched by part number and machine model — bore, rod diameter, stroke and pin sizes leave no room for near-enough — so this page sets out what to send, and the documented cylinder seal kits that handle the most common cylinder failure of all: worn seals.
Repair First: Documented Cylinder Seal Kits
Most cylinder faults are seal faults. A cylinder that drifts or weeps usually needs its seal kit, not its barrel. Kyotechs' documented seal-kit listings include the excavator bucket cylinder kit below and a run of wheel-loader cylinder kits — listed here under their documented application, because a kit bought for the wrong machine helps nobody. The full kit index is on the seal kits page.
| Part number | Part | Compatible with | Machine models |
|---|---|---|---|
| 14589133 | Hydraulic cylinder bucket seal kit | Volvo | EC240 excavator |
| 11709998 | Boom lift cylinder seal kit | Volvo | L60E, L60F, L70E wheel loaders |
| 11998809 | Tilt cylinder seal kit | Volvo | L70C, L70D wheel loaders |
| 11999907 / VOE11999907 | Steering cylinder seal kit | Volvo | L90C, L90D wheel loaders |
Ordering a Complete Cylinder
- Part number first. The number on the cylinder or in the machine's parts book decides the match.
- Machine model and cylinder position — boom, arm (stick) or bucket cylinders differ even on the same machine.
- Measurements if the number is lost: pin-to-pin length closed and open, bore and rod diameters, pin diameters. With those, the reply can check the documented range.
- Photographs of the rod end, gland and ports catch the variations a model name hides.
Delivery and preparation times are confirmed for your order in the enquiry reply, in writing and before payment: the reply states the times, the packing and the shipping method that apply to your exact part number. Times are confirmed per order rather than published as a general figure, because they follow the listing, the quantity and the destination.
Frequently Asked Questions
My cylinder drifts down under load. Do I need a new cylinder?
Usually not. Drift is most often internal leakage past the piston seals, and a seal kit addresses it. External leaks at the gland point to the rod seal and wiper. Describe the symptom and the reply will separate kit work from cylinder replacement.
Can you supply cylinders for machines not listed here?
Cylinders are confirmed by part number against the documented store category. Send the number and model — if it cannot be matched, the reply says so rather than offering a near fit.
Do the parts carry a warranty?
Warranty terms are confirmed in writing for each order before payment. Kyotechs' own FAQ states that most parts are backed by a warranty against manufacturing defects; ask for the term that applies to your listing when you enquire.
Cylinder Identification in Practice
Cylinders are the most frequently mis-ordered hydraulic component, because one machine carries at least three and their barrels look alike in a photograph. The reliable identifiers, in order, are the part number, the pin-to-pin dimensions open and closed, and the pin and port sizes. If the number is lost, measure before you write: a supplier can do more with five honest measurements than with ten photographs. Note also the cylinder's working history when you write: a bent rod or a scored barrel changes the part you need, and the honest description gets the right replacement quoted — the documented repair programme covers pumps, travel motors, swing motors and main control valves, so a damaged cylinder is a replacement conversation, settled by the cylinder's number and measurements. The seal kit guide on this site works through the measurement method in full.