Komatsu PC300HD-5 Arm Pins and Bushings

Komatsu PC300HD-5 Arm Pins and Bushings is a machine-level reference hub for buyers who need stronger guidance before ordering Komatsu aftermarket pins and bushings. This page uses the cleaned PC300 work-equipment data, image references, and callout order to build a more authoritative path into the correct wear components for the Arm area.

For PC300HD-5, this section surfaces 29 distinct part numbers across 4 relevant images, with serial coverage such as 20001-UP. Common component types in this section include Seal,Dust, Bushing, Fitting,Grease, Pin, Bolt, Plate.

Why this arm hub matters

Pins, bushings, seals, spacers, bolts, and related wear hardware are often easy to confuse across nearby pivot points. The same machine family can use visually similar parts in different locations, and the same part number can appear under different diagram contexts as serial ranges and work-equipment packages change. That is why this page is organized around the actual diagram images and callout order instead of broad category assumptions.

How to use this page

  • Match your machine as PC300HD-5 first
  • Confirm the work-equipment area as Arm
  • Use the image below to identify the correct diagram
  • Match the numbered callout to the listed part number
  • Verify by serial range and machine details before purchase

Diagram pc300hdu_210080a.png

Komatsu PC300HD-5 Arm pins and bushings diagram pc300hdu_210080a.png

The numbered callouts below follow the source sort order for this image, helping connect the diagram to the matching part-number rows.

  1. 1 — 207-70-00110 (Arm Ass'Y)
  2. 1 — 207-70-00211 (Arm Ass'Y)
  3. 1 — The part specified in the line above can be used instead of this part207-70-00210 (Arm Ass'Y)
  4. 1 — This part cannot be supplied as an individual part. It is supplied as an assembly. (Arm)
  5. 2 — 207-70-12161 (Bushing)
  6. 2 — None
  7. 3 — 207-70-32150 (Bushing)
  8. 4 — 207-70-32140 (Bushing)
  9. 5 — 07020-00000 (Fitting,Grease)
  10. 6 — 07145-00110 (Seal,Dust)
  11. 7 — 205-70-62180 (Seal,Dust)
  12. 8 — 207-70-12270 (Seal,Dust)

Diagram pc300hdu_210120a.png

Komatsu PC300HD-5 Arm pins and bushings diagram pc300hdu_210120a.png

The numbered callouts below follow the source sort order for this image, helping connect the diagram to the matching part-number rows.

  1. 1 — 207-944-0110 (Short Arm Ass'Y)
  2. 1 — 207-944-0111 (Short Arm Ass'Y)
  3. 1 — This part cannot be supplied as an individual part. It is supplied as an assembly. (Arm)
  4. 2 — 207-70-12161 (Bushing)
  5. 2 — None
  6. 3 — 207-70-32150 (Bushing)
  7. 4 — 207-70-32140 (Bushing)
  8. 5 — 07020-00000 (Fitting,Grease)
  9. 6 — 07145-00110 (Seal,Dust)
  10. 7 — 205-70-62180 (Seal,Dust)
  11. 8 — 207-70-12270 (Seal,Dust)
  12. 9 — 207-70-31190 (Pin)

Diagram pc300hdu_210100a.png

Komatsu PC300HD-5 Arm pins and bushings diagram pc300hdu_210100a.png

The numbered callouts below follow the source sort order for this image, helping connect the diagram to the matching part-number rows.

  1. 1 — 207-943-0100 (Long Arm Ass'Y)
  2. 1 — This part cannot be supplied as an individual part. It is supplied as an assembly. (Arm)
  3. 2 — 207-70-12161 (Bushing)
  4. 2 — None
  5. 3 — 207-70-32150 (Bushing)
  6. 4 — 207-70-32140 (Bushing)
  7. 5 — 07020-00000 (Fitting,Grease)
  8. 6 — 07145-00110 (Seal,Dust)
  9. 7 — 205-70-62180 (Seal,Dust)
  10. 8 — 207-70-12270 (Seal,Dust)
  11. 9 — 207-70-31190 (Pin)
  12. 10 — 205-70-66580 (Plate)

Related PC300HD-5 hubs

Use this hub to narrow the correct Komatsu arm pins and bushings before moving into product-level verification. It is built to support more accurate research, stronger SEO authority, and better buying confidence for serious heavy equipment parts work.