. FOREWORD NECESSARY INFORMATION NECESSARY INFORMATION When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items. PRODUCT IDENTIFICATION NUMBER (PIN)/MACHINE SERIAL NO. PLATE 1 - 8 On the center right of the front The design of the nameplate d iffers according to the territory. ENGINE SERIAL NO. PLATE AND POSITION On the upper left of the cylinde r block, when seen from the fan side.