This maintenance free Bottom Track Roller fits the Kubota KX121-3 Mini Excavator and is manufactured to OEM specifications for a guaranteed perfect fit. Made of hardened steel, the bearings are completely sealed to protect this track roller from foreign debris for worry free operation. The Part Number for the Kubota KX121-3 Bottom Roller Assembly is: RD148-21700
Prowler MFG Undercarriage Components (Sprockets, Idlers, and Rollers) are warranted to be free from defects in material and workmanship under normal use and service for a period of 12 Months, from date of purchase.
We do not cover these components that are damaged due to improper installation, or foreign objects struck or ran over by your machine. (ie. Operator error)
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