FOREWORD PRODUCT INFORMATION PRODUCT INFORMATION 0. When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items. MACHINE SERIAL NUMBER PLATE AND ITS LOCATION 0. On the bottom right of the operator's cab PRODUCT IDENTIFICATION NUMBER A ENGINE SERIAL NUMBER PLATE AND ITS LOCATION 0. On top of the No. 3 (or No. 4) cylinder head cover. (The EPA supplementary plate is on top of the No. 1 cylinder head cover.) EPA: Environmental Protection Agency, U.S.A. 1-7