Komatsu Excavator Boom

Image	Fits Model	Description	Details	Part #	Price	Product Details
	See Details	PC360-11	Boom	2A7-70-K1331	From $11,550.00	View Info
	See Details	PC170-10, PC170-11	Boom	21K-70-00310	From $11,450.00	View Info
	See Details	PC138-11	Boom	22B-70-00532	From $9,850.00	View Info

New OEM replacement booms for Komatsu excavators, covering mid-size and large-frame machines across the PC138, PC170, and PC360 series. Each boom is sourced directly as OEM-spec hardware to ensure proper fit, geometry, and structural integrity for demanding dig cycle applications.

Fits Models At A Glance

PC138 Series: PC138-11
PC170 Series: PC170-10, PC170-11
PC360 Series: PC360-11

Key Notes

Condition: New OEM — not aftermarket or remanufactured
Application: Main boom arm assembly for standard digging configurations
Compatibility: Matched by machine model and serial tier; confirm your generation before ordering
Weight Class: Ranges from mid-size (PC138) to large-frame (PC360) excavators

Why Choose Broken Tractor

✅ OEM parts sourced for exact Komatsu fitment
✅ Multiple PC series covered under one supplier
✅ Fast shipping from our Ohio and Louisiana locations