Komatsu D31EX-21, Operation & Maintenance Manual, Page: 9 / 256

FOREWORD
NECESSARY INFORMATION
1-7
NECESSARY INFORMATION 1
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
This is at the front bottom right of the operator's seat.
The design of the nameplate differs according to the territory.
ENGINE SERIAL NO. PLATE 1
This is at the front top of the engine on the left side machine.
EPA: Environmental Protection Agency, U.S.A.