Caterpillar engines are identified with SERIAL NUMBERS and AR-
RANGEMENT NUMBERS. In some cases MODIFICATION NUMBERS are also used. These
numbers are shown on the serial number plate mounted on the engine. The Specification Section at
the back of this Parts Book indicates the location of the serial number plate.
Caterpillar dealers need all of these numbers to determine which components were include on the engine when it was
assembled at the factory. This permits accurate identification of replacement part numbers.
Quality Caterpillar Replacement parts are available from Caterpillar dealers
throughout the world. Their parts stocks are up to date and include all parts normally required to
protect your investment in Caterpillar engines. When ordering parts, your order should specify the quantity, part number,
part name and the serial number, arrangement number and modification number of the engine for which the parts are
needed. If in doubt about the part number, please provide your dealer with a complete description of the needed item.
HOW TO USE THE
Caterpillar Parts Books PARTS
include illustrations of the
groups or assemblies which make up the engine. These
illustrations show the standard components plus many of
the attachments available for the engine.
The alphabetical index located in the front part of the
book should be used to determine the page number on
which specific illustrations are shown. Reference to
those pages will identify each of the individual
The caption under each illustration
identifies the part number and name of the group or
assembly shown. If more than one illustration is included
for any group, the caption identifies the specific engine
serial numbers to which each illustration applies. In some
cases it is not possible to determine the specific engine
serial numbers to which different illustrations are
applicable. In those cases the caption identifies the
illustration as "First Type", "Second Type", etc.
Reference to the actual group or assembly is necessary
in those cases to determine which illustration should be
Captions provide additional information such as page
numbers where illustrations of sub assemblies are
shown, information reguarding quantities used and other
information intended to assist the user in determining
Within each illustration is a
Part Names parts list identifying each serviceable part in
When a part name is indented in this list, it means that
serviceable item is a part of the serviceable item under
which it is indented.
Abbreviations and Symbols
t Used to call attention to additional * information
shown elsewhere within the illustration.
Refers to the side of
the engine as viewed from the
Indicates changes from the previous illustration of
the same group, assembly.
Note: Continuing improvement and advancement of
product design may cause changes to your engine
which may not be included in this publication. Each
publication is reviewed and revised, as required, to
update and include these changes in later editions.
Whenever a question arises regarding your
Caterpillar product, or this publication, please
consult your Caterpillar dealer for the latest available