Part Number

Our Used Komatsu Boom is an excellent alternative to dealer parts for your machine. When high-quality is a requirement and lower costs are necessary, our used Boom is the solution for you.

  • Fits the Komatsu WA250-6 models.
  • All used parts come with a 30-day warranty.
  • Part Number: 418-70-31102-5770

H&R Construction Equipment Parts is a leading supplier of new and used parts since 1984 for the major manufacturers of excavators, wheel loaders, bulldozers, articulated trucks, and skid steers. Our warehouses consists of over 140,000 sq. ft. of space to house our inventory, along with 40 acres of outside storage.

Contact a Parts Specialist today at (800) 333-0650 for more information.


  WARNING: Cancer and Reproductive harm. See

More Information
SKU HR00060492
Model WA250-6
Part Number 418-70-31102-5770
Make Komatsu
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