. FOREWORD NECESSARY INFORMATION NECESSARY INFORMATION When requesting service or ordering replacement parts, please inform your Komatsu distributor of the following items. cover.) 1 - 6 PRODUCT IDENTIFICATION NUMBER (PIN), MACHINE SERIAL NO. PL Under the front of the console b ox on the right side of the operator's The design of the nameplate dif EPA REGULATIONS, ENG The engine serial number plate is located in the rear portion of the exhaust manifold on t he left side of the engine, as viewed from the cooling fan he upper portion of the filter mounting EPA: Environmental Protection Agency, U.S.A.