Kobelco SK330-8 · Valve Assembly,Bypass · 11 part numbers
No illustration for this section
The Valve Assembly,Bypass is listed without an exploded view in the SK330-8 catalogue — the parts table below is the authoritative reference, and every part number is confirmed against your machine serial before we quote.
The Kobelco SK330-8 Valve Assembly,Bypass breaks down into 11 individually orderable part numbers. The Ref. column mirrors the callout numbers on the illustration, so a part can be ordered straight from the drawing. The list comes straight from the Kobelco SK330-8 catalogue for this machine family.
| Ref. | Part No. | Description | Qty / Assy |
|---|---|---|---|
| YN30V00120F2 | VALVE ASSY,BYPASS | ||
| 1 | YN30V00120S101 | PLUG | 1 |
| 2 | ZD12P02000 | O-RING | 1 |
| 3 | YN30V00120S201 | POPPET | 1 |
| 4 | YN30V00120S202 | SPRING | 1 |
| 5 | YN30V00120S301 | POPPET | 1 |
| 6 | YN30V00120S302 | SPRING | 1 |
| 7 | YN30V00120S401 | PLUG | 1 |
| 9 | ZD12P01800 | O-RING | 1 |
| YN30V00120R100 | REPAIR KIT | 1 | |
| . | (CONSISTS OF BELOW) |
Factory part numbers as fitted to the Kobelco SK330-8 excavator. "Ref." matches the callout number on the exploded view where one is shown.
The 11 entries group into 2 distinct number series, led by YN30V, ZD12P. In practice that means repeated items such as plug, ring, poppet and 3 hardware positions.
Where to start in this table: YN30V00120S101 (plug, ×1 per assembly); ZD12P02000 (o-ring, ×1 per assembly); YN30V00120S201 (poppet, ×1 per assembly). The full list follows below.
Seal kits for this group are quoted from the same table — the O-ring and seal positions carry their own numbers, so a hydraulic repair never forces a purchase at assembly level.
Every hydraulic item we quote is declared by condition: genuine, ordered through original supply channels, or a quality OEM alternative. The declaration appears on the quotation itself, never buried in an invoice, so you know exactly what you are fitting before you commit.
We quote new components from this table — genuine or OEM by declaration — rather than exchange units, so you know exactly what is being fitted. In this group, YN30V00120S101 is the number most often quoted for that enquiry.
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.
Usually yes — the callout numbers on the drawing map directly to the Ref. column in the table. If your machine differs by serial range, send a photo of the part and we will confirm before quoting.
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View Parts ListKobelco SK330-8 workshop guide
Read the guideKobelco SK330-8 workshop guide
Read the guideKobelco workshop guide
Read the guideRepair guides written from our own workshop notes on the Kobelco SK330-8 — the same components listed on this page, with the failure patterns and part numbers we see most often from trade customers.