2018 CAT 308ECR , ENGINEPOWER: 66 HP, Online Owner's Manual , OPERATING WEIGHT: 8.4 T, UNDERCARRIAGE IDLERS: 70 %, UNDERCARRIAGE SPROCKETS: 70 %, UNDERCARRIAGE TRACK BUSHINGS: 70 %, UNDERCARRIAGE TRACK LINKS: 70 %, UNDERCARRIAGE TRACK ROLLERS: 70 %,