C7.1 Marine Propulsion Engine (U.S. EPA Tier 3 / IMO II)
Features
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Key Features & Benefits
- Common rail fuel system enables optimum combustion and low emissions
- Reduced combustion noise through advanced electronic control
- 12V or 24V electrical system
- Compatible with Cat® displays and electronics
- Closed crankcase ventilation system improves engine room cleanliness
- Gear-driven jacket water pump and sea water pump for superior reliability
- Maintenance free valve train with hydraulic valve lash adjusters
- Self-priming fuel system ensures a smooth start every time
Specifications
Units for specifications
Power Rating
| Power Range | 280 bhp - 425 bhp (209 bkW - 317 bkW) |
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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 |
Dimensions & Weights
| Dry Weight | 1676 lb 760 kg |
|---|---|
| Height | 34.5 in 876 mm |
| Length | 43.1 in 1095 mm |
| Width | 31.4 in 798 mm |
Standard Equipment
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
Optional Equipment
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
Videos
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Meet the new C7.1 Commercial Propulsion Engine -
C7.1 Marine Propulsion Engine Walkaround