Kobelco SK260LC-12M · 2.98M Arm (Rock Spec, Hydraulic Breaker) · 10 part numbers
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The 2.98M Arm (Rock Spec, Hydraulic Breaker) 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.
Below is the complete Kobelco SK260LC-12M 2.98M Arm (Rock Spec, Hydraulic Breaker) — 10 part numbers with the quantity fitted per assembly. Take the callout number from the drawing and match it in the Ref. column below. The list comes straight from the Kobelco SK260LC-12M catalogue for this machine family.
| Ref. | Part No. | Description | Qty / Assy |
|---|---|---|---|
| LB12B00316F1 | ARM, 2.98M | ||
| 1 | LB12B00317F1 | ARM | 1 |
| 1 1B - | LQ12B01843P1 | BUSHING | 2 |
| 1 1C - | YN12B02404P1 | BUSHING | 2 |
| 1 1D - | LQ12B11089P1 | BUSHING | 2 |
| 1 2A - | YN12B21219P1 | BLOCK, TAPPED | 2 |
| 1 2B - | YN02B11189P1 | BLOCK, TAPPED | 4 |
| 2 | 2445R220D6 | SEAL, DUST | 2 |
| 3 | 2445R220D3 | SEAL, DUST | 2 |
| 4 | 2445R138D8 | SEAL, DUST | 2 |
Listed for the Kobelco SK260LC-12M excavator. Every number can be quoted on its own or as a complete set, and fitment is confirmed from your machine serial before we price it.
Structurally, these 10 numbers fall into 5 Kobelco number series — 2445R, LB12B, LQ12B among the largest. Expect repeated items such as bushing, seal, dust and 3 seal and O-ring positions when you work through it.
Three numbers worth noting first: YN02B11189P1 (block, tapped, ×4 per assembly); LQ12B01843P1 (bushing, ×2 per assembly); YN12B02404P1 (bushing, ×2 per assembly). The full list follows below.
Swing, travel and implement circuits share the same pump flow on the Kobelco SK260LC-12M, which is why a fault in one function can point back to a component listed in this group. A pressure test narrows the circuit down; the drawing then narrows it to a part number.
Working from the exploded view is the fastest way to order. Find the component on the drawing, note its callout number, and take the matching reference from the table — that mapping removes the guesswork that comes with describing a part over the phone or in an email.
Both. Every quotation states the condition of each item — genuine through original supply channels, or a quality OEM alternative — so the choice is yours and it is documented. On the SK260LC-12M, that usually comes back to YN02B11189P1 (block, tapped) in this group.
We quote new components from this table — genuine or OEM by declaration — rather than exchange units, so you know exactly what is being fitted.
Slow or drifting functions, a circuit that weakens as the oil warms, noise under load, and external leakage at joints are the usual reports. Pressure testing points to the circuit; the drawing callouts then point to the part.
Fuel Tank Mounting (Fuel Pump Mounting, Dust Cover, Remote Drain)
View Parts ListHydraulic Oil Tank Mounting (Right-View Camera)
View Parts ListPto Assembly (Without Hydraulic Pto)
View Parts ListSwing Motor Mounting (Sk280)
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 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.