Komatsu Excavator Pins & Bushings
Komatsu excavator pins and bushings keep the boom, arm, bucket linkage, and cylinder mounts tight under daily digging loads. Use this WQC Parts hub to research aftermarket Komatsu excavator pivot parts by model, serial range, part number, and location before requesting a quote or ordering replacement components.
Where Excavator Pivot Wear Usually Shows Up
Boom Foot and Boom Cylinder Pivots
High-load pivots where looseness can move into the bore if worn pins and bushings are ignored.
Arm and Arm Cylinder Pivots
Critical wear points affected by digging force, bucket size, arm length, and daily lubrication practices.
Bucket Linkage and H-Link Area
Often the fastest-wearing area because impact, breakout force, side load, and abrasive material meet at the bucket end.
Before Ordering Komatsu Excavator Pins or Bushings
Komatsu excavator pivot parts can change by model series, serial number break, arm configuration, attachment arrangement, and component group. A PC200, PC220, PC300, PC400, or PC490 search should always be narrowed with the machine serial number and the exact pivot location.
- Confirm the Komatsu part number or dashless alternate number when available.
- Check whether the part is for the boom, arm, bucket link, cylinder mount, or main frame pivot.
- Compare the machine serial range against the parts book or existing part stamping.
- Inspect the bore before installing new parts; badly worn bores may need line boring before new pins and bushings will last.
Why Fit and Hardness Matter
Aftermarket Komatsu excavator pins and bushings should not be selected only by description. A pin that is close but not correct can create loose fit, uneven wear, grease loss, or bore damage. WQC Parts focuses on practical fitment confirmation and WQ Certified™ quality standards for selected Komatsu pivot parts.
Common Questions
Can I order by excavator model only?
Model is helpful, but the safest path is model plus serial number plus pivot location. Komatsu serial breaks and arrangements can change the correct pin or bushing.
Are these OEM Komatsu parts?
WQC Parts supplies aftermarket Komatsu replacement parts and is not an authorized Komatsu dealer. Komatsu names and part numbers are used for identification and fitment research.
Need help confirming fitment? Send WQC Parts the Komatsu part number, machine model, serial number, and pivot location. We can help narrow the correct aftermarket replacement path before you order.