31Y1-28960 Boom Cylinder Seal Kit 31Y128960 for Hyundai Excavators R210-9/R220-9/R235LCR-9
About the 31Y1-28960 Seal Kit
The 31Y1-28960 (31Y128960) boom cylinder seal kit is an aftermarket repair kit supplied by DJF for Hyundai excavators. The part number follows the Hyundai 31Y1- series numbering used for cylinder repair kits, and the number is sold on Chinese B2B platforms as a boom cylinder repair kit (大臂修理包).
The current page lists this kit for the Hyundai R210-9, R220-9 and R235LCR-9; model fitment and dimensions are confirmed per order before dispatch.
Verified Specifications
| Specification | Detail |
|---|---|
| Part Number | 31Y1-28960 (also written 31Y128960) — as listed on page |
| Number Family | Hyundai 31Y1- series cylinder repair kit numbering — corroborated by 1688 B2B listing and sibling numbers (31Y1-15230, 31Y1-35030, etc.) |
| Cylinder Position | Boom cylinder (per B2B listings) |
| Condition | New aftermarket replacement |
Fitment Verification
Send your machine model (R210-9 / R220-9 / R235LCR-9), serial number and the measured rod/bore of the boom cylinder to [email protected] before ordering; we confirm the 31Y1-28960 reference before dispatch.
Replacement Scope
The kit covers the sealing elements needed to re-seal the boom cylinder of a Hyundai excavator — dynamic rod and piston seals, wipers, wear rings (guide bands), buffer rings and static O-rings. Exact component types and quantities of the 31Y1-28960 kit are confirmed with the factory before dispatch.
Factory Inspection & Packing
Each 31Y1-28960 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 excavator fleets. Email [email protected] or [email protected] with your quantity and machine details for a wholesale quotation and lead time.
FAQ
Q1: How do I confirm 31Y1-28960 fits my Hyundai excavator?
A1: Please send us your machine model, serial number, cylinder bore/rod size or original part number. We will verify the match with you before processing the order.
Q2: Is 31Y1-28960 a genuine Hyundai part number?
A2: The number follows the Hyundai 31Y1- series numbering used for cylinder repair kits and is sold on B2B platforms as a boom cylinder repair kit, but we could not confirm it in the official Hyundai catalogue. Verify fitment with us before placing an order.
Q3: I cannot find the model I want. Do you have all the seal kits here?
A3: No — we carry tens of thousands of seal kits, and only a small part is shown on this page. We stock seal kits for most construction machinery. Please contact us.
Q4: What is the wholesale MOQ?
A4: The MOQ is 5 kits per part number. Email [email protected] or [email protected] for a factory-direct quote.
Aftermarket replacement part — not manufactured by or affiliated with Hyundai Construction Equipment. Fitment must be confirmed before ordering.
