Kobelco SK260LC-12M · Arm Mounting (SK310) · 15 part numbers
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The Arm Mounting (SK310) is listed without an exploded view in the SK260LC-12M catalogue — the parts table below is the authoritative reference, and every part number is confirmed against your machine serial before we quote.
The Kobelco SK260LC-12M Arm Mounting (SK310) breaks down into 15 individually orderable part numbers. Callout numbers on the exploded view map one-to-one to the Ref. column in the table. The list comes straight from the Kobelco SK260LC-12M catalogue for this machine family.
| Ref. | Part No. | Description | Qty / Assy |
|---|---|---|---|
| LB12B00212F1 | ARM INSTAL | ||
| 1 | LB12B00213F1 | ARM INSTAL | 1 |
| 2 | LB12B00090F1 | ARM INSTAL | 1 |
| 3 | YN12B00812F1 | ARM INSTAL | 1 |
| 1 | LB12B01435P1 | PIN | 1 |
| 2 | LB02B01043D1 | SHIM (2.0) | 2 |
| 3 | 2420T2747D18 | SHIM (0.5) | 1 |
| 4 | 2420T2747D19 | SHIM (0.9) | 1 |
| 5 | 2420T2747D3 | SHIM (1.6) | 1 |
| 1 | LB02B01112P1 | PIN | 1 |
| 2 | HS18C20180G2 | CAPSCREW | 1 |
| 3 | ZN18C20016 | NUT | 2 |
| 1 | YN12B02109P1 | PLATE | 1 |
| 2 | ZS18C14030 | CAPSCREW | 2 |
| 3 | ZW16H14000 | WASHER | 2 |
Part numbers as fitted to the Kobelco SK260LC-12M excavator. Where a position changed during the production run, the serial number settles which one applies to your machine.
The 15 entries group into 8 distinct number series, led by LB12B, 2420T. In practice that means repeated items such as arm, instal, shim and 4 hardware positions.
The high-quantity positions are: LB02B01043D1 (shim (2.0), ×2 per assembly); ZN18C20016 (nut, ×2 per assembly); ZS18C14030 (capscrew, ×2 per assembly). The full list follows below.
Send the Kobelco SK260LC-12M serial number with your enquiry. Pin and bushing positions changed across the production run on several Kobelco SK260LC-12M variants, and the serial number is the fastest way to confirm the correct set before you order.
Structural groups rarely fail as castings; what wears is everything pinned, bolted and clamped to them. That is what makes this group the practical one to work from — pins, bushings, retaining hardware and the mounting points that take the working load every cycle of the machine.
On several SK260LC-12M variants they do — pin and bushing part numbers changed with the attachment configuration. Send the serial number and we confirm the correct group before quoting. If that matches your case, quote LB02B01043D1 and we will take it from there.
Yes — we cover the Kobelco range beyond the SK260LC-12M. Send the model or the part number from the worn part and we will identify and quote it.
Progressive play at a joint, knocking when the attachment changes direction under load, and visible oval wear on a pin are the usual signs. Measuring play at each joint tells you which positions are due — each has its own part number in the table above.
Upper Frame Assembly
View Parts ListCounterweight Mounting (Tropical Spec, 4.90T, Eagle-Eye View Ready)
View Parts ListCounterweight Mounting (Tropical Spec, Semi-Heavy 5.70T, Eagle-Eye View Ready)
View Parts ListArm Rest
View Parts ListFilter List
View Parts ListUndercarriage Parts List
View Parts ListNut Part Numbers
View Parts ListBushing Part Numbers
View Parts ListKobelco SK260LC-12M workshop guide
Read the guideKobelco SK260LC-12M workshop guide
Read the guideRepair guides written from our own workshop notes on the Kobelco SK260LC-12M — the same components listed on this page, with the failure patterns and part numbers we see most often from trade customers.