The UltraDrive Bottom Roller, New, Komatsu, 21W-30-00021 is an OEM-specification roller built to fit KOMATSU PC75UD-2 machines. Machined to the precise tolerances required by KOMATSU equipment, this replacement roller restores full undercarriage function -- reducing operating noise, preventing premature track wear, and extending overall machine life.

Ultratrack stocks OEM-grade KOMATSU undercarriage parts verified by make, model, and serial number. Every roller ships free to the contiguous United States with same-day processing and is backed by a 30 Month manufacturers defect warranty.