ENGINE MODEL AND SERIAL NUMBER DESIGNATION
Fig. 5 - Typical Model and Serial Numbers as
Fig 6 - Typical Model and Serial Numbers as
Stamped on Cylinder Block (In-Line Engine)
Stamped on Cylinder Block (6V Engine)
On the In-line engines, the model number and serial number are stamped on the right-hand side of the cylinder block in
the upper rear corner (Fig. 5). The model number and serial number on the V-type engine is located on the top right-
hand front corner of the cylinder block, as viewed from the rear of the engine (Fig. 6).
An option plate, attached to the valve rocker cover, is also stamped with the engine serial number and model number
and, in addition, lists any optional equipment used on the engine (Fig. 7).
With any order for parts, the engine model number and serial number must be given. In addition, if a type number is
shown on the option plate covering the equipment required, this number should also be included on the parts order.
Power take-off assemblies, torque converters, hydraulic marine gears, etc. may also carry name plates pertaining to the
particular assembly to which they are attached. The information on these name plates is useful when ordering parts for
Fig. 7 - Option Plate
BUILT-IN PARTS BOOK
The Built-In Parts Book is an anodized aluminum plate (Option Plate) that fits into a retainer on the engine valve rocker
cover and contains the necessary information required when ordering parts. It is recommended that the engine user read
the section on the Built-In Parts Book in order to take full advantage of the information provided on the engine option
Numerous exploded view type illustrations are included to assist the user in identifying and ordering service parts.