C7.1

C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)

Power Rating
Power Range	280 bhp - 425 bhp (209 bkW - 317 bkW)

Engine Specifications
Speed Range	2300 - 2700 rpm
Emissions	U.S. EPA Tier 3, IMO II, RCD II, China II
Configuration	In-line 6, 4-stroke-cycle diesel
Displacement	428 in³ / 7.01 l
Aspiration	Turbocharged-aftercooled
Governor	Electronic (A5E2 V2 ECM)
Flywheel Housing	SAE No. 03
Bore	4.13 in / 105 mm
Stroke	5.31 in / 135 mm
Refill Capacity	20 L (5.3 gal)
Oil Change Interval	500 hrs
Rotation	Counterclockwise from the flywheel end
Cooling	Heat exchange or keel cooled

General
- Marine Classification Society (MCS) Approval
- Water-cooled turbocharger and exhaust manifold
- Closed crankcase ventilation system
- Integral engine oil cooler
- Self-tensioning multi-vee alternator drive belt
Fuel System
- Common rail fuel system
- Starter motors - 12V or 24V
- Fuel cooler
- Electric fuel priming pump
Starting System
- Corrosion-resistant sea water aftercooler
Mounting System
- Vibration damper and guard
- Front and rear engine mounting brackets
Cooling System
- Gear-driven seawater pump (rubber impeller)
- Fin and tube-type jacket water heat exchanger

Fuel System
- SOLAS double wall high-pressure fuel lines
General
- Engine-mounted secondary alternator - 24V 55 amp or 12V 100 amp
- Analogue gauge displays
- Glow plugs
- Mechanical throttle converter for repower
Cooling System
- Transmission gear oil cooler (engine mounted)
- Jacket water heater
- Cabin heater (calorifier) connections
Exhaust System
- Various 5" and 6" water cooled exhaust elbow configurations
Lube System
- Right-hand and high-level left-hand oil dipsticks