C7.1 High Performance Propulsion Engine

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

Overview

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

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
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

Dimensions & Weights

Length
43.1in
Height
35.1in
Minimum Width
31.4in
Maximum Width
33.5in
Minimum Engine Dry Weight
1609lb
Maximum Engine Dry Weight
1676lb

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
4.13in
Stroke
5.31in
Displacement
428in³
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

Standard/Optional Features

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

See how C7.1 Tier 3 / IMO II compares against frequently compared products

C7.1 Tier 3 / IMO II Commercial Propulsion Engines

Configuration
In-line 6, 4-stroke-cycle diesel
Bore
4.13 in
Stroke
5.31 in
Selected Model

C7.1 Tier 3 / IMO II Commercial Propulsion Engines

Configuration
In-line 6, 4-stroke-cycle diesel
Bore
4.13 in
Stroke
5.31 in
View Full Specs

C9.3 ACERT Commercial Propulsion Engines

Configuration
In-line 6, 4-Stroke-Cycle Diesel
Bore
4.53 in
Stroke
5.87 in
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