WD500-3 S/N 50001-UP WD600-1 S/N 10001-UP WD600-1H S/N 10001-UP (-50cent. Spec.) WD600-1H S/N 10001-UP (For Canada / -50cent. Spec.) WD600-3 S/N 50001-UP WD600-6 S/N 55001-55003 WD600-6 S/N 55004-UP WD600-6 S/N 55088-UP WD600-6R S/N 60001-UP WD900-3 S/N 50001-UP Komatsu Online Catalog