Caterpillar 3406 Marine Engine
3406E
450 - 800 bhp
(336 - 597 bkW)
1800 - 2300 rpm
893 cu. in. (14.6L)
electronic control I-6 |
Your boat is big enough to live on, fast enough to
leave the little fish rocking in your wake, and reliable
enough to go wherever big water beckons.
Chances are your boat is powered by Cat 3400 engines.
At the top of the line is the Cat 3412E, a 1400 bhp
(1044 bkW) 12-cylinder piece of engineered art with mid-range
power curves that put the competition to shame. This level of
power development gives you awe-inspiring acceleration, high
power and torque for maneuvers and challenging seas, and
great cruising characteristics in smoother water.
The source of this electrifying performance? Caterpillar
electronic control, with Caterpillar’s patented HEUI fuel system
using hydraulically-actuated, electronically-controlled unit injectors
that allow full fuel injection pressure at 40 percent rated engine
speed. This improves fuel atomization compared to mechanically
controlled engines for a more complete burn, accomplishing the
twin tasks of improving performance while reducing emissions levels.
The 6-cylinder 3406E isn’t far behind its bigger brother,
cranking out 133 bhp (100 bkW) per cylinder with the
help of electronic fuel injection and a high-position
camshaft. Full power and torque are available at 1600 rpm,
so you can head out with full confidence in conditions that
would cause many engines to bog down.
For over 26 years, Cat 3400s have proven their
reliability and durability. Now, with a big boost of
high performance, they’re also faster…and more fun.
Available with optional factory custom paint.
| Bore x stroke: |
130 x 150 mm (5.1 x 5.9 in) |
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| Displacement: |
12L (729 cu in) |
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| Weight (dry, varies with arrangement): |
1177kg / (2590lb) | |
Features include:
- One piece cylinder head
- Caterpillar electronic fuel system
- Hardened steel camshaft with roller followers
- Two piece forged steel and aluminum pistons
- Replaceable valve guides and seats
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Standard Engine Equipment
Air Inlet - aftercooler, air cleaner, watercooled turbocharger
Cooling - thermostat, jacket water pump, sea water pump, intregal heat exchanger/expansion tank
Control sytem - Electonic Contol Module (ECM) engine mounted sensors
Exhaust - watercooled exhaust manifold, 6-inch round flanged outlet
Flywheel and flywheel housing - SAE No. 1
Fuel - secondary filter, priming and transfer pumps
Instrumentation - service meter
Lubricating - oil cooler, oil filter, center sump oil pan
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Dimensions:

| Dimensions |
LE in/mm |
H in/mm |
W in/mm |
| (may vary) |
60.8/ 1543 |
39.5/ 1005 |
38.0/ 966 |
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Download Acrobat PDF file of specifciation for this engine.
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