Current Caterpillar Power-Systems Marine-Power-Systems Auxiliary Engines

2025 Caterpillar Auxiliary Engines C7.1 (Electronic)

2025 Caterpillar Auxiliary Engines C7.1 (Electronic)

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  • Year 2025
  • Make Caterpillar
  • Model Auxiliary Engines
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Product Details Specifications Photos
2025 Caterpillar Auxiliary Engines C7.1 (Electronic)

2025 Caterpillar Auxiliary Engines C7.1 (Electronic)

  • Year 2025
  • Manufacturer Caterpillar
  • Model Name Auxiliary Engines
  • Trim Name C7.1 (Electronic)
  • Generic Type (Primary) General
  • Engine Power Range: 109 - 218 bkW
  • Rated Engine Speed 1500/1800, 600 - 2400 rpm
  • Bore 4.13 in
  • Stroke 5.31
  • Displacement 428 in³
  • Aspiration Turbocharged - Aftercooled
  • Emissions U.S. EPA Tier 3, IMO II, EU Stage V, China II
  • Cooling Heat exchanger or keel cooled

2025 Caterpillar Auxiliary Engines C7.1 (Electronic)

The C9.3 propulsion, auxiliary, and generator set engines have a common rail fuel system for optimal combustion and lower emissions. Cooling system options for the propulsion and auxiliary engines include heat exchanger with sea water aftercooling, and keel with combined circuit or separate circuit aftercooling. The genset packages are available with heat exchanger, keel, or radiator cooling. These products are EPA Tier 3 and IMO II certified. In addition the propulsionengine ratings are EU Stage IIIA certified and auxiliary and gen sets are also CCNR Stage II certified.

Features may include:

Electronic Control System
  • The electronic control system provides industry-leading torque and throttle response at low speeds, while maintaining fuel efficiency at high speeds
Common Rail Fuel System
  • Common rail fuel system enables optimum combustion and low emissions
RH and LH Locations
  • RH and LH locations for fuel and oil filters and dipstick improves serviceability
Compatibility
  • Compatible with Cat® displays
Remote Control
  • Available remote-mounted display panel with start, stop, and engine diagnostics
Electrical Advantages
  • 12V or 24V electrical system
Certificates
  • Marine classification society certificates: ABS, BV, CCS, CRS, DNV, GL, IRS, KR, LR, NK, PRS, RINA, RS

Engine

Engine Power Range: 109 - 218 bkW
Rated Engine Speed 1500/1800, 600 - 2400 rpm
Bore 4.13 in
Stroke 5.31
Displacement 428 in³
Aspiration Turbocharged - Aftercooled
Emissions U.S. EPA Tier 3, IMO II, EU Stage V, China II
Cooling Heat exchanger or keel cooled

Fuel System

Fuel Type Diesel | Refill Capacity: Lube Oil System w/Oil filter change: 20 L (5.3 gal) | Oil Change Interval: 500 hours

Drivetrain

Governor Electronic (A5E2 V2 ECM) |Configuration: In-line 6, 4-stroke-cycle diesel

Electric

Electrical Frequency: 50 / 60 | Voltage Regulator: Solid state voltage regulator with integral voltage adjustment potentiometer

Dimensions

Height 34.5 in
Length 43.1 in
Width 33.5 in

Weights

Dry Weight Engine Dry Weight - Approximate: 1676

Product Photography

Warning WARNING: Operating, servicing and maintaining a passenger vehicle, an off-highway motor vehicle or a recreational marine vessel can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle or vessel in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle or vessel. For more information go to https://www.p65warnings.ca.gov/products/passenger-vehicle and https://www.p65warnings.ca.gov/products/marine.