21N-70-31140 Boom Pin
Model: PC1250
BOOM PIN
Weight: 182KGS
Brand: Komatsu Type: Excavator
Model: PC1250
BOOM PIN
Weight: 182KGS
Compatible with the following equipment:
PC1100, PC1100SE, PC1100SP, PC1250, PC1250SE, PC1250SP
What are excavator pins?
To ensure that your ground-engaging equipment remains working in a straight line you must keep the seals, linkages, pins and bushes in top condition.
As these vital components degrade, play becomes apparent in the boom, arm and bucket resulting in a distinct lack of quality in the finished work and an overall decline in the machines productivity and efficiency.
Komatsu Pins and Bushes are engineered to the high quality to match the performance of the Komatsu machine, opting for a lower quality non-genuine alternative could result in catastrophic failure.
Therefore you should consider investing in the best possible option for your machine in order to avoid having to replace alternative pins and bushes sooner than it is necessary.
Guide to identifying the pins and bushings on excavators.

1. Bucket Pins
2. Stay Arm Pin
3. Bucket Cylinder Rod End with Tipping Link
4. Bucket Cylinder Case End Pin
5. Arm Cylinder Rod End
6. Boom to Arm Pin
7. Arm Cylinder Case End Pin
8. Boom Cylinder Rod End
9. Boom Foot Pin
10. Boom Cylinder Case End Pin
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