. FOREWORD PRODUCT INFORMATION PRODUCT INFORMATION When requesting service or ordering replacement parts, please inform your Komatsu distributor following items. 1 - 6 of the MACHINE SERIAL NUMBER PLATE AND ITS LOCATION On the front bottom right of the operator's cab (side of upper frame) ENGINE SERIAL NUMBER PLATE AND ITS LOCATION This is at the side of the oil coo ler housing on the left side face of the engine c ylinder block. n the top surface of the intake manifold at the fr ont of t he chassis.) EPA: Environmental Protection Agency, U.S.A.