Komatsu Excavator Pins, Links, and Bushings

Pins, links, and bushings for Komatsu excavators, covering bucket pins, floating seals, bushings, and bushing kits across a wide range of compact, mid-size, and large Komatsu excavator models. Parts are suited for routine maintenance, undercarriage rebuilds, and attachment work on machines from the PC40 series through PC350 and beyond.

Fits Models At A Glance

• Compact Excavators: PC40, PC50, PC55, PC60, PC78 series (including UU, MR, US, R variants)
• Mid-Size Excavators: PC100L-6, PC128UU-2, PC138USLC-2, PC138USLC-8, PC158US-2-W1, PC158USLC-2-W1
• PC200 Series: PC200 (LC, CA, Z, H, T variants), PC210, PC220, PC228UU, PC230
• Large Excavators: PC300, PC300LC, PC350, PC350LC (-3, -5, -6, -6Z, -7, -7E0, -8)

Key Notes

• Part Types: Bucket pins, floating seals, individual bushings, and full bushing kits
• Application: Attachment mounting, undercarriage rebuilding, and seal replacement on excavator frames and booms
• Series Coverage: Spans compact through large excavator classes across multiple production generations
• Cross-Use: Some floating seals and bushing kits also fit Komatsu debris crushers and related equipment

Why Choose Broken Tractor

• ✅ Broad fitment coverage across Komatsu excavator generations
• ✅ Fast shipping from Baton Rouge, LA and Kimbolton, OH
• ✅ Knowledgeable staff ready to help confirm part fit

Frequently Asked Questions

What bucket pin fits a Komatsu PC138USLC-2 excavator?

Broken Tractor carries bucket pin SKU 22B-70-12420, which fits the Komatsu PC138USLC-2. The same pin also fits the PC128UU-2, PC138USLC-8, PC158US-2-W1 and PC158USLC-2-W1. Match the part number on your old pin or in your parts book to confirm the fit.

What bushing fits a Komatsu PC300 or PC350 excavator?

Bushing SKU 207-70-32150 fits the Komatsu PC300, PC300LC, PC350 and PC350LC. It covers the -3, -5, -6, -6Z, -7, -7E0 and -8 variants of those models. Check your machine's exact model and variant before ordering.

Which floating seal fits a Komatsu PC200 excavator?

Floating seal SKU 150-27-00029 fits the Komatsu PC200 series, including the LC, CA, Z, H and T variants. It also fits the PC100L-6, PC210, PC220, PC228UU and PC230. Matching the part number on your current seal is the surest way to get the right one.

Do you carry bushings for Komatsu mini excavators like the PC50 or PC55?

Yes, Broken Tractor offers bushing SKU 07177-05530 for Komatsu compact excavators in the PC40 through PC78 series. That includes the UU, MR, US and R variants of those models. Because fitment can vary by model and variant, compare the part number with your old bushing before ordering.

How do I make sure a pin or bushing will fit my Komatsu excavator?

The best way is to match the part number stamped on your old part or listed in your Komatsu parts book to the SKU we list. Fitment can depend on the exact model, variant and serial number, so have that information ready. If you are unsure, call (800) 909-7060 and our parts team can help confirm the fit.