Caterpillar’s Marine Power
Systems has introduced
the Cat C6.4, a new V- 8
marine diesel engine plat-
form for the pleasure craft
industry. The C6.4 will pro-
vide power from 335 to 505
hp at 3400 rpm.
NEW 6. 4 L CAT
PLEASURE CRAFT DIESEL
Power from 335 to 505 hp from new V- 8 model with high-pressure common rail fuel system, CGI block
Caterpillar Marine Power Systems has introduced the Cat C6.4, a new marine diesel engine platform targeted for the
pleasure craft industry. The C6.4 will
provide power from 335 to 505 hp at
3400 rpm and is a vee-configuration,
eight-cylinder, four-stroke diesel with
a 98.2 mm bore and 105 mm stroke
displacing the 6. 4 L.
The C6.4 offers four “E” level ratings,
including the highest rating, which is
505 hp at 3400 rpm. Additional ratings available include 450, 380 and
335 hp. Production is targeted for the
first half of 2012. The engine will be
built at the Wimborne Marine Power
Center, Wimborne, U.K.
David Shannon, Caterpillar Marine
Power Systems pleasure craft global
sales manager said the C6.4 meets
current exhaust emissions regulations
including U.S. EPA Tier 2 marine
recreational craft limitations, the EU
94/25/EC recreational craft directive,
and is IMO II compliant. The engine
is also capable of meeting future U.S.
EPA Tier 3 marine exhaust emissions
requirements, he said.
Reduced engine noise is achieved
through the use of a two-piece compacted graphite iron (CGI) cylinder
block, combining the bed plate and
block casting to provide additional
stiffness and subsequently lower
The high-pressure common rail
(HPCR) fuel system also provides
quieter performance through the pilot
injection of fuel and integration of piezo
technology to eliminate electromechanical control solenoids, said Tony Pattle,
marine products engineering manager.
“The quieter performance of the
C6.4 is also due to significant reductions in geartrain and valve noise as
well as the addition of the HPCR fuel
system,” Pattle said.
Standard equipment includes a
built-in oil cooler, centrifugal water
pump, self-priming seawater pump,
low profile oil pan, top access to service oil level and oil fill locations as well
as a single Cat heavy-duty, spin-on,
high-efficiency oil filter.
The engine is equipped with an
automatic fuel priming pump, 12
Vdc electric accessories and a solid-mounted Cat 70-pin electric plug-in
connector for yacht control harness.
The new C6.4 is fully compatible with
the Cat Multi-Station Control System
(MSCS) and MSCS II components
for shift and throttle integration and
Cat helm displays, including a color
marine power display. dp
To Request More Information
On This Company Go To