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

Overview
Length
43 in
Minimum Rating
280 BHP
Height
35 in

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

Dimensions & Weights

Length
43 in
Height
35 in
Minimum Width
31 in
Maximum Width
34 in
Minimum Engine Dry Weight
1,609 lb
Maximum Engine Dry Weight
1,676 lb

Power Rating

Minimum Rating
280 BHP
Maximum Rating
425 BHP

Engine Specifications

Configuration
In-line 6, 4-stroke-cycle diesel
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
Rated Engine Speed
2300 - 2700 rpm
Bore
4 in
Stroke
5 in
Displacement
428 in³
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

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

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

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

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

  • 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
  • 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
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