Komatsu PC300 Excavator Pins, Links & Bushings

Pins, links, bushings, and seals for Komatsu PC300 series excavators, covering dipper end bushings, H-links, dipper-to-cylinder links, link-to-dipper pins, bucket-to-dipper pins, H-link bushings, and associated seals for front attachment service and rebuild work.

Fits Models At A Glance

• PC300 Series: PC300-5, PC300LC-5, PC300-6, PC300LC-6, PC300-7, PC300LC-7, PC300-8, PC300LC-8
• PC310/PC340 Series: PC310-5, PC340-6, PC340LC-6, PC340-7, PC340LC-7
• PC350 Series: PC350-6, PC350LC-6, PC350-7, PC350LC-7, PC350-8, PC350LC-8
• PC360/PC390 Series: PC360-7, PC360-8, PC360LC-10, PC360LC-11, PC390LC-10

Key Notes

• Application: Front attachment linkage components including dipper, bucket, and H-link pivot points
• Seal Compatibility: Dipper-end and dipper-at-bucket seals available to complement pin and bushing replacements
• Cross-Fitment: Several pins and links cover PC300 through PC390 variants across multiple generations
• Tooling Available: Steel bushing driver tool for removal and installation included in this category

Why Choose Broken Tractor

• ✅ Genuine replacement parts for Komatsu PC300 linkage
• ✅ Wide generation coverage from -5 through -11 series
• ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH

Frequently Asked Questions

Will the H-link fit my Komatsu PC350 or PC360 excavator?

Yes, the H-link we carry (SKU 207-70-00120) fits a wide range of Komatsu excavators, including the PC350-6, PC350LC-6, PC350-7, PC350LC-7, PC350-8, PC350LC-8, PC360-7, PC360-8, PC360LC-10 and PC360LC-11. It also fits PC300-5 through PC300LC-8, PC310-5, PC340-6 through PC340LC-7, and the PC390LC-10. It replaces part number 207-70-00470, so if your old H-link carries that number, this is the matching replacement.

Which Komatsu PC300 models does the bucket to dipper and H-link pin fit?

The bucket to dipper and H-link pin (SKU 207-70-61230) is listed for the Komatsu PC300-6, PC300LC-6, PC340LC-6, PC350-6 and PC350LC-6. If you run a different generation, such as a -5, -7 or -8 machine, match the part number on your old pin before ordering. You can also confirm fitment with the parts team. Call (800) 909-7060.

What parts do I need to rebuild the bucket linkage on a Komatsu PC300 excavator?

Broken Tractor carries the main front linkage wear parts for the Komatsu PC300. These include the dipper end bushing (207-70-61550), H-link bushing (207-70-33160), link to dipper pin (207-70-33140), dipper to cylinder link (207-70-33120) and the H-link. Pairing new pins and bushings with fresh seals, such as the dipper at bucket seal (207-70-12270) and seal 205-70-62180, completes the job at each pivot point.

Is the Komatsu PC300 dipper to cylinder link for the left or right side?

The dipper to cylinder link we carry (SKU 207-70-33120) is listed for LH or RH side applications on the Komatsu PC300. Compare the part number on your existing link with 207-70-33120 to confirm you have the correct replacement before ordering.

Is there a tool for removing and installing Komatsu PC300 excavator bushings?

Yes, Broken Tractor offers a steel bushing driver tool for both removal and installation. It is a universal tool, so it works for pressing out worn bushings and seating new ones at the linkage pivot points on your Komatsu PC300 excavator.