RH418-71490 Arm & Dipper Cylinder Seal Kit for Kubota U27-4 Excavators
About the RH418-71490 Seal Kit
The RH418-71490 (also written RH41871490) is a factory-produced aftermarket hydraulic cylinder seal kit from DJF Seals. It is our own reference number, not a Kubota OEM part number, and it is listed for the arm (dipper) cylinders of Kubota U27-4 mini excavators.
Because RH418-71490 cannot be cross-checked against an OEM catalogue, fitment is confirmed per order by cylinder measurement and machine serial — the Fitment Verification section below shows the one required check.
Verified Specifications
| Specification | Detail |
|---|---|
| Part Number | RH418-71490 (also written RH41871490) — manufacturer reference |
| Product Type | Aftermarket hydraulic cylinder seal kit |
| Reference Machine | Kubota U27-4 mini excavator (2.7 t class, Kubota U-series) — machine model verified via Kubota official product line |
| Reference Cylinder Position | Arm (dipper) cylinder — manufacturer reference |
| Condition | New aftermarket replacement |
Fitment Verification
Send your machine serial number and the measured bore/rod of the actual cylinder to [email protected] before ordering; we confirm the RH418-71490 reference against your cylinder before dispatch.
Replacement Scope
The kit covers the sealing elements needed to re-seal the arm (dipper) cylinder of the U27-4 — dynamic rod and piston seals, wiper, wear rings and static O-rings. Exact component types and quantities of the RH418-71490 kit are confirmed with the factory before dispatch; do not assume a standard count.
Factory Inspection & Packing
Each RH418-71490 kit is inspected against the confirmed reference before packing: seal lips and surfaces are checked, the kit is packed to protect the seals from dust and moisture, and the carton label carries the part number and batch. Inspection photos or a packing list can be provided on request.
Wholesale Ordering
MOQ: 5 kits per part number.
DJF Seals supplies this kit factory-direct to distributors, repair shops and fleet maintenance teams. Email [email protected] with the part number and quantity; first orders should include the machine serial and cylinder measurements so we can confirm the reference before dispatch.
FAQ
Q1: Is RH418-71490 a genuine Kubota part number?
A1: No. RH418-71490 is DJF Seals’ own aftermarket reference number for this kit. It is not a Kubota OEM number, so fitment must be confirmed by cylinder measurement and machine serial.
Q2: Does the same kit serve both the arm and the dipper cylinder of the U27-4?
A2: Our reference lists RH418-71490 for both positions on the U27-4. Cylinder sizes can differ between build years, so measure the bore and rod of the actual cylinder and confirm with us before ordering.
Q3: What should I send to confirm fitment?
A3: The machine serial number, the bore and rod diameter of the cylinder, the cylinder position (arm or dipper), and a photo of the old seal set — sent to [email protected].
Q4: What is the wholesale MOQ?
A4: The MOQ is 5 kits per part number. Contact [email protected] or [email protected] for factory-direct pricing.
Aftermarket replacement part — not manufactured by or affiliated with Kubota Corporation. Fitment must be confirmed before ordering.
