Komatsu PC300LC Boom Pins and Bushings

Komatsu PC300LC Boom 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 Boom area.

For PC300LC, this section surfaces 137 distinct part numbers across 12 relevant images, with serial coverage such as 11001-UP, 12001-UP, 20001-UP (OVERSEAS VERSION), 40001-UP (OVERSEAS VERSION). Common component types in this section include Bolt, Washer, Pin, Plate, Tube, Spacer, 0.8Mm.

Why this boom 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 PC300LC first
  • Confirm the work-equipment area as Boom
  • 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 pc300l4r_210010a.png

Komatsu PC300LC Boom pins and bushings diagram pc300l4r_210010a.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 — 207-70-00041 (Boom Ass'Y)
  2. 1 — 207-70-00043 (Boom Ass'Y)
  3. 1 — The part specified in the line above can be used instead of this part207-70-00042 (Boom Ass'Y)
  4. 1 — This part cannot be supplied as an individual part. It is supplied as an assembly. (Boom)
  5. 2 — 207-70-31222 (Bushing)
  6. 2 — The part specified in the line above can be used instead of this part207-70-31220 (Bushing)
  7. 3 — 07020-00900 (Fitting,Grease)
  8. 4 — 07145-00110 (Seal,Dust)
  9. 5 — 207-70-31290 (Spacer 0.8Mm)
  10. 6 — 207-70-31160 (Pin)
  11. 7 — 207-70-31230 (Plate)
  12. 8 — 01010-51640 (Bolt)

Diagram pc300l3r_210010a.png

Komatsu PC300LC Boom pins and bushings diagram pc300l3r_210010a.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 — 207-70-00013 (Boom Ass'Y)
  2. 1 — The part specified in the DESCRIPTION column can be used instead of this part if it is used as a set.207-70-00011 (Boom Ass'Y)
  3. 1 — This part cannot be supplied as an individual part. It is supplied as an assembly. (Boom)
  4. 2 — 207-70-11210 (Bushing)
  5. 3 — 07145-00100 (Seal,Dust)
  6. 3 — None ((207-70-00013{207-70-11655 })
  7. 4 — 207-70-11340 (Spacer 0.8Mm)
  8. 4 — None (207-70-11665))
  9. 5 — 207-70-11350 (Spacer 1.5Mm)
  10. 6 — 207-70-11160 (Pin)
  11. 7 — 207-70-24190 (Spacer 0.8Mm)
  12. 8 — 207-70-24210 (Spacer 1.5Mm)

Diagram pc300l6c_360210a.png

Komatsu PC300LC Boom pins and bushings diagram pc300l6c_360210a.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 — 207-70-61191 (Pin)
  2. 1 — 207-70-61192 (Pin)
  3. 2 — 205-70-66580 (Plate)
  4. 2 — 205-70-66581 (Plate)
  5. 3 — 01010-81235 (Bolt)
  6. 4 — 01643-31232 (Washer)
  7. 5 — 07145-00110 (Seal)
  8. 6 — 207-70-31172 (Pin)
  9. 7 — 207-70-31242 (Plate)
  10. 8 — 207-70-13340 (Bolt)
  11. 9 — 01580-12419 (Nut)
  12. 10 — 207-70-71251 (Spacer, 1.0Mm)

Related PC300LC hubs

Use this hub to narrow the correct Komatsu boom 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.