Komatsu PC200LC-8 Bucket-to-Arm Linkage - HEAVY DUTY, FOR 2.9M ARM - Serial 310001-315645
Komatsu PC200LC-8 Bucket-to-Arm Linkage - HEAVY DUTY, FOR 2.9M ARM - Serial 310001-315645 helps customers identify the correct replacement parts used in the bucket linkage area for PC200LC-8 machines within serial range 310001-315645.
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: 310001-315645
Section: Bucket-to-Arm Linkage - HEAVY DUTY, FOR 2.9M ARM
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: 310001-UP |
| 2 | 20Y-70-32351 | BUSHING | 2 | SN: 310001-UP |
| 3 | 20Y-70-32361 | BUSHING | 4 | SN: 310001-UP |
| 4 | 07020-00000 | FITTING,GREASE | 3 | SN: 310001-UP |
| 5 | 20Y-70-23220 | SEAL | 4 | SN: 310001-UP |
| 6 | 20Y-70-23230 | SEAL | 2 | SN: 310001-UP |
| 7 | 205-70-73130 | LINK | 2 | SN: 310001-UP | Refs: 2057073130NK |
| 8 | 22U-70-21191 | PIN | 1 | SN: 310790-UP | Refs: 2057073160 |
| 8 | The part specified in the line above can be used instead of this part22U-70-21192 | PIN | 1 | SN: 310001-310789 | Refs: 2057073160, 22U7021191 |
| 9 | 20Y-70-00961 | LINK ASS'Y | 1 | SN: 310001-UP |
| 9 | 20Y-70-32450 | BOLT | 1 | SN: 310001-UP |
| 10 | 01580-12016 | NUT | 2 | SN: 310001-UP |
| 11 | 20Y-70-31451 | SPACER, 1.0MM | 2 | SN: 310001-UP | Refs: 20Y7031450 |
| 12 | 20Y-70-31461 | SPACER, 2.0MM | 1 | SN: 310001-UP | Refs: 20Y7031460 |
| 13 | 22U-70-21191 | PIN | 1 | SN: 310790-UP | Refs: 2057073160 |
| 13 | The part specified in the line above can be used instead of this part22U-70-21192 | PIN | 1 | SN: 310001-310789 | Refs: 2057073160, 22U7021191 |
| 14 | 20Y-70-32450 | BOLT | 1 | SN: 310001-UP |
| 15 | 01580-12016 | NUT | 2 | SN: 310001-UP |
| 16 | 20Y-70-31441 | SPACER, 1.0MM | 4 | SN: 310001-UP | Refs: 20Y7031440 |
| 17 | 20Y-70-31481 | SPACER, 2.0MM | 1 | SN: 310001-UP | Refs: 20Y7031480 |
| 18 | 205-70-73270 | PIN | 1 | SN: 310001-UP | Refs: 22U7011672 |
| 19 | 20Y-70-32450 | BOLT | 1 | SN: 310001-UP |
| 20 | 01580-12016 | NUT | 2 | SN: 310001-UP |
| 21 | 205-70-73270 | PIN | 1 | SN: 310001-UP | Refs: 22U7011672 |
| 22 | 20Y-70-32460 | BOLT | 1 | SN: 310001-UP |
| 23 | 01580-12016 | NUT | 2 | SN: 310001-UP |