Marine Power 5.3 GEN V DI Owner's Manual page 9

3.
Engine Identification
Every Marine Power Engine is equipped with an Engine Identifi-
cation Tag, also known as a Serial Number Tag. This tag contains
information (model number and serial number) that will be
required before any warranty work (if necessary) can be done.
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Airpac:
Engines configured for airboat applications. These engines use
closed cooling systems with automotive style radiators. Their
exhaust manifolds are dry and usually supplied by the boat
builder.
Enpac:
Engines configured for stern drive (I/O) applications. Cooling
water supply differs depending on the stern drive model mated
to. See Section 12: Installation Instructions.
Jetpac:
Engines configured for inboard jet drive applications. Cooling
water normally supplied by jet drive. Routing of inlet out out-
let cooling water lines will affect winterization. See Section 9:
Winterization procedures.
Towpac:
Engines configured for watersport tow boat applications. Engines
may be configured for conventional inboard or v-drive applica-
tion. In many of these applications throttle and shift is highly
integrated with the boat instrumentation
Sportpac:
Engines configured for traditional inboard vessels. Many of these
applications are twin installations.
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