2017 CAT 323FL , ENGINEPOWER: 165 HP, Online Owner's Manual , OPERATING WEIGHT: 23.7 T, UNDERCARRIAGE CARRIER ROLLERS: 60 %, UNDERCARRIAGE IDLERS: 60 %, UNDERCARRIAGE SPROCKETS: 60 %, UNDERCARRIAGE TRACK BUSHINGS: 60 %, UNDERCARRIAGE TRACK LINKS: 60 %, UNDERCARRIAGE TRACK ROLLERS: 60 %,