Kobelco SK200-8 · Valve Assembly,Main Relief · 15 part numbers

Illustration reproduced from the Kobelco SK200-8 parts catalogue for part identification only. Callout numbers on the drawing match the Ref. column in the table below. Kobelco is a trademark of its respective owner; Shenyue Machinery is an independent supplier of excavator parts.
Below is the complete Kobelco SK200-8 Valve Assembly,Main Relief — 15 part numbers with the quantity fitted per assembly. Where the drawing shows a callout, the Ref. column in the table carries the same number. The list comes straight from the Kobelco SK200-8 catalogue for this machine family.
| Ref. | Part No. | Description | Qty / Assy |
|---|---|---|---|
| YN22V00001F1-F8 | VALVE ASSY,MAIN RELIEF | ||
| 121 | YN22V00001S121 | RING | 1 |
| 122 | YN22V00001S122 | SPACER | 1 |
| 163 | ZD12P02500 | O-RING | 1 |
| 521 | YN22V00001S521 | SPRING | 1 |
| 561 | YN22V00001S561 | O-RING | 1 |
| 562 | YN22V00001S562 | RING,BACK UP | 1 |
| 613 | YN22V00001S613 | STOPPER | 1 |
| 621 | 2436R750S512 | SPRING | 1 |
| 652 | YN22V00001S652 | SCREW,ADJUST | 1 |
| 661 | ZD12P00800 | O-RING | 1 |
| 663 | ZD12P01400 | O-RING | 1 |
| 664 | ZD12P01600 | O-RING | 1 |
| 671 | YN22V00001S671 | NUT | 1 |
| 673 | 2436U1281S612 | NUT | 1 |
Kobelco SK200-8 excavator part numbers, taken from the machine's own parts catalogue. Items shared with the neighbouring SK200-10 and SK210-8 generations are confirmed from your model plate before quoting.
Structurally, these 15 numbers fall into 4 Kobelco number series — YN22V, ZD12P, 2436R among the largest. Expect repeated items such as ring, spring, nut and 4 hardware positions when you work through it.
If you are quoting from this group, start with: YN22V00001S121 (ring, ×1 per assembly); YN22V00001S122 (spacer, ×1 per assembly); ZD12P02500 (o-ring, ×1 per assembly). The full list follows below.
The Valve Assembly,Main Relief group on the Kobelco SK200-8 contains 15 separately orderable part numbers, all listed in the table below with the quantity fitted per assembly. Every number in the table is a real Kobelco part number taken from the machine's own parts catalogue, not a generic cross-reference.
Send us the Kobelco SK200-8 serial number together with the part number or the symptom you are chasing. We confirm fitment from the serial range before quoting, and mixed orders are consolidated into a single shipment — a set of seals does not travel in its own parcel.
The machine serial number, the part number if you have it, and the symptom. With those three, fitment is confirmed and the quotation follows the same working day. The practical first number to ask for in this group is YN22V00001S121.
Yes. Seal items are listed as individual part numbers in the table, so a seal package for one joint can be quoted without buying the whole assembly.
Either. The complete Valve Assembly,Main Relief can be quoted as a set, or any single part number from the table — both are normal requests from our trade customers.
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View Parts ListKobelco SK200-8 workshop guide
Read the guideKobelco SK200-8 workshop guide
Read the guideKobelco SK200-8 workshop guide
Read the guideRepair guides written from our own workshop notes on the Kobelco SK200-8 — the same components listed on this page, with the failure patterns and part numbers we see most often from trade customers.