68658-21750 Kubota KX101 Roller Assembly Undercarriage parts for the previous-generation Kubota KH series and early KX series are gradually phasing out of the aftermarket. It is recommended to stock up on these bottom rollers for KH90, KX101 models before production ceases. Detailed information is as follows: I. Core Compatible Models This roller assembly is specifically designed for the following Kubota models, guaranteed to fit as a direct replacement: Kubota KH 90 Kubota KH 101 Kubota KX 101 II. Product Configuration and Installation Tips Assembly Specifications: The roller comes as a complete assembly but does not include installation hardware (bolts, etc.). Existing hardware from your equipment can be reused for installation; it is advisable to retain the original hardware when removing old rollers for direct assembly. Stock Reminder: As parts for older models are being phased out, current inventory is limited. We recommend purchasing in advance to avoid shortages that may delay equipment repairs. III. Alternate Part Numbers This roller corresponds to the following Kubota dealer part numbers: 68658-21750 (primary number) 69788-21700, 68658-21700 (commonly used alternative numbers) IV. Special Compatibility and Uniqueness Notes Steel Track Version: We also stock a steel track-compatible version of this roller. Please indicate if your mini excavator uses steel tracks when ordering to ensure proper fit. Uniqueness of Fit: There are no other known alternative bottom roller models for Kubota KH90 and KX101. This track roller is an exclusive compatible part, guaranteed for precise installation. V. Quality Assurance All rollers are backed by a standard factory warranty, ensuring reliable quality to meet the performance requirements of equipment repair and replacement.