Komatsu OEM undercarriage is always the right choice. It is designed specifically for your machine. Komatsu undercarriage is designed and manufactured utilizing computer controlled production processes, optimal materials, latest technology and quality control procedures that result in a product that provides the highest value and performance for your Komatsu machine. One size does not fit all. Komatsu has designed undercarriage to meet various workplace environments, shot rock to oil sands, landfill to forest; Komatsu undercarriage meets the challenge. Link assemblies are offered as Standard, AR (abrasion resistant), AIR (abrasion and impact resistant), PLUS (parallel link undercarriage system) and dual bushing. Rollers are offered as Standard, AR, and Artic. Track shoes are available in numerous sizes and variations to meet all underfoot conditions.