21K-70-31390 Bushing Fits Komatsu Models
21K-70-31390 Bushing Fits Komatsu Models
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One New Aftermarket Replacement Hydraulic Cylinder Bushing for Komatsu Excavators
This aftermarket replacement bushing is a hydraulic cylinder pivot bushing used in the boom, arm, or bucket cylinder assemblies on Komatsu excavators. It serves as a wear interface between the cylinder eye and the mounting pin, reducing friction and maintaining precise cylinder alignment during operation.
Compatible Models
Komatsu Excavators: Fits Komatsu excavator models -- confirm fitment using part number 21K-70-31390 or any cross-reference number listed below against your machine's parts manual. The 21K and 21P prefix numbers in the interchange list are associated with the Komatsu PC150 and PC160 series excavators.
Replaces Part Number(s):
21K-70-31390, 21P-70-K1610, 20G-70-11380, 21K-70-21810, 21K-70-99890, 1633751, 2402914
New aftermarket replacement part - not remanufactured, not used.
