Commercial Propulsion Engines

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

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Metric

Overview

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

Engine Specifications

Rotation
Counterclockwise from flywheel end

Dimensions & Weights

Length
43.10 in
1095.00 mm

Power Rating

Minimum Rating
280.00 BHP
208.00 bkW

Dimensions & Weights

Height
35.10 in
891.00 mm

Power Rating

Maximum Rating
425.00 BHP
317.00 bkW

Dimensions & Weights

Minimum Width
31.40 in
798.00 mm

Engine Specifications

Configuration
In-line 6, 4-stroke-cycle diesel

Dimensions & Weights

Maximum Width
33.50 in
850.00 mm

Engine Specifications

Emissions
U.S. EPA Tier 3 / IMO II emissions certified (commercial), RCD 2016 compliant, EU Stage IIIA compliant, CCNR Stage II through reciprocity with EU Stage IIIA

Dimensions & Weights

Minimum Engine Dry Weight
1609.00 lb
730.00 kg

Engine Specifications

Rated Engine Speed
2300 - 2700 rpm

Dimensions & Weights

Maximum Engine Dry Weight
1676.00 lb
760.00 kg

Engine Specifications

Bore
4.13 in
105.00 mm
Stroke
5.31 in
135.00 mm
Displacement
428.00 in³
7.01 l
Aspiration
Turbocharged-aftercooled aspiration
Governor
Electronic (A5E2 V2 ECM)
Refill Capacity
Lube Oil System w/Oil filter change: 20 L (5.3 gal)
Oil Change Interval
500 hrs
Cooling
Heat exchanger or keel cooled
Flywheel Housing
SAE No. 03 with SAE 11.5 in flywheel
Rotation
Counterclockwise from flywheel end
Rotation
Counterclockwise from flywheel end
Features

Reliability & Durability

Superior response time and acceleration; 12V or 24V electrical system; Gear driven jacket water pump and sea water pump for superior reliability; Maintenance free valve train with hydraulic valve lash adjusters

Easy to use

Compatible with Cat® displays and electronics; Self priming fuel system ensures a smooth start every time

Environment friendly

No visible smoke; Common rail fuel system enables optimum combustion and low emissions; Reduced combustion noise through advanced electronic control; Closed crankcase ventilation system improves engine room cleanliness

Standard Equipment
  • COOLING SYSTEM
    • Gear driven jacket water pump
    • Corrosion resistant sea water aftercooler
    • Fuel cooler
  • EXHAUST SYSTEM
    • Watercooled turbocharger and exhaust manifold
  • FUEL SYSTEM
    • Common rail fuel system
    • Electric fuel priming pump
  • GENERAL
    • Vibration damper and guard
    • Self-tensioning multi-vee belt drive
  • LUBE SYSTEM
    • Closed crankcase ventilation system
    • Integral engine oil cooler
  • MOUNTING SYSTEM
    • Front and rear engine mounting brackets
  • STARTING SYSTEM
    • Starter motors - 12V or 24V
Optional Equipment
  • AIR INLET SYSTEM
    • Various 6" water cooled exhaust elbow configurations
  • COOLING SYSTEM
    • Engine mounted bilge pumps and auxiliary water pumps with electromagnetic clutch
    • Tube and bundle jacket water heat exchanger and gear-driven sea water pump (rubber impeller)
    • Jacket water heater
    • Cabin heater (calorifier) connections
  • FUEL SYSTEM
    • SOLAS double wall high pressure fuel lines kit
  • LUBE SYSTEM
    • Left-hand and right-hand oil dipsticks
    • Transmission gear oil cooler (engine mounted)
  • PROTECTION SYSTEM
    • Additional engine and transmission sensor packages for on or off vessel monitoring
  • STARTING SYSTEM
    • Engine mounted secondary alternator - 24V 100 amp or 12V 175 amp
    • Glow plugs