Komatsu PC200LC-8 Bucket-to-Arm Linkage - Serial 300001-UP (ecot3)
Komatsu PC200LC-8 Bucket-to-Arm Linkage - Serial 300001-UP (ecot3) helps customers identify the correct replacement parts used in the bucket linkage area for PC200LC-8 machines within serial range 300001-UP (ecot3).
This page focuses on the bucket-to-arm linkage diagram shown below. Use the illustration and numbered callout list to match the correct pin, bushing, seal, link, spacer, and hardware part numbers before ordering.
Machine coverage: PC200LC-8
Serial range: 300001-UP (ecot3)
Section: Bucket-to-Arm Linkage
How to Use This Bucket Linkage Hub
- Confirm your machine model, serial number, and arm length before choosing parts.
- Match the callout number on the linkage image to the numbered parts list below.
- Use serial notes, lubrication notes, and option notes to choose the correct bucket linkage pin, bushing, seal, or link part.
- Open the linked part number directly when you want to review product availability.
Why This Bucket Linkage Page Matters
Bucket-to-arm linkage joints are among the highest-wear points on Komatsu excavators. This reference page helps buyers verify pivot-group parts, reduce ordering mistakes, and identify the exact linkage hardware shown in the OEM-style illustration.
Callout Parts List
| No. | Part Number | Description | Qty | Serial / Notes |
|---|---|---|---|---|
| 1 | This part cannot be supplied as an individual part. It is supplied as an assembly. | LINK | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 2 | 205-70-73180 | BUSHING | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 3 | 20Y-70-01180 | LINK ASS'Y | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 3 | 21K-70-12161 | BUSHING | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 4 | 07020-00000 | FITTING | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 5 | 07020-00000 | FITTING | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 6 | 20Y-70-23220 | SEAL | 4 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 7 | 20Y-70-23230 | SEAL | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 8 | 205-70-73130 | LINK | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP | Refs: 2057073130NK |
| 9 | 22U-70-21191 | PIN | 1 | SN: 300001-UP (ECOT3) | SN: 307021-UP | Refs: 2057073160 |
| 9 | The part specified in the line above can be used instead of this part22U-70-21192 | PIN | 1 | SN: 300001-UP (ECOT3) | SN: 300001-307020 | Refs: 2057073160, 22U7021191 |
| 10 | 20Y-70-32450 | BOLT | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 11 | 01580-12016 | NUT | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 12 | 20Y-70-11320 | SPACER, 0.8MM | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 13 | 20Y-70-11330 | SPACER, 1.5MM | 3 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 14 | 22U-70-21191 | PIN | 1 | SN: 300001-UP (ECOT3) | SN: 307021-UP | Refs: 2057073160 |
| 14 | The part specified in the line above can be used instead of this part22U-70-21192 | PIN | 1 | SN: 300001-UP (ECOT3) | SN: 300001-307020 | Refs: 2057073160, 22U7021191 |
| 15 | 20Y-70-32450 | BOLT | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 16 | 01580-12016 | NUT | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 17 | 20Y-70-11320 | SPACER, 0.8MM | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 18 | 20Y-70-11330 | SPACER, 1.5MM | 4 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 19 | 205-70-73270 | PIN | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP | Refs: 22U7011672 |
| 20 | 20Y-70-32450 | BOLT | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 21 | 01580-12016 | NUT | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 22 | 205-70-73270 | PIN | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP | Refs: 22U7011672 |
| 23 | 20Y-70-32460 | BOLT | 1 | SN: 300001-UP (ECOT3) | SN: 300001-UP |
| 24 | 01580-12016 | NUT | 2 | SN: 300001-UP (ECOT3) | SN: 300001-UP |