Komatsu PC1100 & PC1250 Pins, Links, & Bushings

Komatsu PC1100 & PC1250 Pins, Links, & Bushings parts list
Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	PC1100-6, PC1100LC-6, PC1250-7, PC1250LC-7, PC1250-8, PC1250LC-8	H-Link		21N-70-00402	From $12,984.00	View Info

Shop pins, links, and bushings for Komatsu PC1100 and PC1250 excavators. Broken Tractor stocks H-links, bucket pins, arm pins, boom pins, and related bushings to maintain proper boom, arm, and bucket linkage connections on your large Komatsu excavator.

Fits Models At A Glance:

Komatsu PC1100 Series: PC1100-6, PC1100LC-6
Komatsu PC1250 Series: PC1250-7, PC1250LC-7, PC1250-8, PC1250LC-8

Key Notes:

H-Links: Heavy-duty H-link assemblies connecting the bucket to the arm linkage for digging and loading operations
Application: Maintains precise bucket positioning and transfers crowd and breakout forces through the linkage system
Function: Worn or cracked H-links cause bucket slop, reduced breakout force, and linkage failure — critical components on large production excavators where downtime is costly

Why Choose Broken Tractor:

✅ H-Links and Linkage Components for Large Komatsu Excavators

✅ Fits PC1100-6 Through PC1250-8 Series

✅ Fast Shipping from U.S. Warehouses

Frequently Asked Questions

What does the H-link do on a Komatsu PC1250 excavator?

The H-link connects the bucket to the arm linkage on a Komatsu PC1250. It keeps the bucket positioned precisely and transfers crowd and breakout forces through the linkage during digging and loading. Broken Tractor offers H-link 21N-70-00402 for PC1250-7, PC1250LC-7, PC1250-8 and PC1250LC-8 excavators.

What are the signs of a worn H-link on a Komatsu PC1100?

Common signs of a worn or cracked H-link on a Komatsu PC1100 are bucket slop and reduced breakout force. If the problem is left alone, it can lead to linkage failure. On a large production excavator that kind of failure means costly downtime, so the linkage should be inspected as soon as the bucket starts to feel loose.

What Komatsu models does H-link 21N-70-00402 fit?

H-link 21N-70-00402 fits the Komatsu PC1100-6, PC1100LC-6, PC1250-7, PC1250LC-7, PC1250-8 and PC1250LC-8 excavators. Fitment can depend on the serial number, so match the part number on your existing link before ordering. If you are unsure, call (800) 909-7060 and the parts team can confirm fitment.

Is the H-link the same on the Komatsu PC1250-7 and PC1250-8?

Yes, Broken Tractor lists the same H-link, part number 21N-70-00402, for both the PC1250-7 and PC1250-8 along with their LC versions. The same part is also listed for the PC1100-6 and PC1100LC-6. Always compare the part number on your old H-link to make sure it matches your machine.

What pins, links and bushings does Broken Tractor carry for Komatsu PC1100 and PC1250 excavators?

Broken Tractor carries H-links, bucket pins, arm pins, boom pins and related bushings for Komatsu PC1100 and PC1250 excavators. These parts keep the boom, arm and bucket linkage connections tight on the PC1100-6 through PC1250-8 series. Orders ship fast from U.S. warehouses.