20Y-26-21220 Gear Fits Komatsu Models
20Y-26-21220 Gear Fits Komatsu Models
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One New Aftermarket Replacement Swing Motor Planetary Gear for Komatsu Excavators and Loggers
This aftermarket replacement planetary gear fits the swing motor reduction assembly on Komatsu PC-6 series hydraulic excavators as well as Komatsu 635 and 735 Logger machines. The swing reduction gearbox transmits rotational force from the hydraulic swing motor to the upperstructure slewing ring, and a worn or damaged planetary gear causes sluggish or erratic cab swing performance. Replacing this gear restores proper swing function and prevents further drivetrain damage.
Compatible Models
Komatsu PC-6 Series Excavators: PC200-6, PC210-6, PC220-6, PC228UU-1-TN, PC230-6, PC240-6K
Komatsu Logger Machines (Swing Machinery):
- 635 Logger - up to S/N 972004
- 735 Logger - from S/N 961419 and up
- 735 Logger - up to S/N 961418
Verify serial number compatibility before ordering. Confirm fitment against your machine's OEM parts catalog if your serial number falls near a listed breakpoint.
Replaces Part Number(s):
20Y-26-21220
New aftermarket replacement part - not remanufactured, not used.
