Building on the durability and reliability of the 3500 engine platform, Caterpillar Marine is pleased to offer an uprated version of the Cat 3516E Marine Propulsion Engine. The high-performance engine delivers 19% more rated power, lower ambient heat rejection, and improved acceleration time. With a focus on serviceability and digitalization, this product provides easier connectivity and installation. It is designed for small engine rooms with its reduction in weight & size and is an ideal solution for Tug, Governmental, and Yachting.

Air System

Advanced combustion and sequential air system for optimal engine performance, acceleration and efficiency

Density and Packaging

Optimized Power Density (Rated Power vs Weight) and Streamlined Engine Packaging (L x W x H)

Fuel Injection

• Enhanced control of fuel injection optimized through crank timing and the latest A5 ECM technology

• Optimal fuel injector nozzle geometry and electronic injection control for improved fuel delivery

Tug and Hyprid configurations

Improved low speed torque capability designed for tug and hybrid configurations


Strengthened cylinder heads and valves for increased durability and peak cylinder pressure capability

Worldwide Support

Global dealer network for service in any location.

Standard Equipment

  • IMO II Emissions
  • Corrosion resistant aftercooler core
  • Sequential Water-Cooled Turbochargers
  • Water Cooled Exhaust Manifold
  • Vibration Damper and Guard
  • Duplex Fuel Filtration
  • Self-Cleaning, Centrifugal Oil Filtration
  • Serviceable Hard Heat Shields
  • Dual A5 Engine Control Modules
  • Meets SOLAS Regulations
  • LECP2 Instrument Control Panel

Additional information

Offering Type

Ratings - Power Range

3755-4023 bhp (2800-3000 bkW)

Engine - Speed Range

1800 rpm

Engine - Emissions


Engine - Aspiration

Sequential Turbocharged / Aftercooled

Engine - Bore

170.0 mm ( 6.69 in )

Engine - Stroke

215.0 mm ( 8.46 in )

Engine - Displacement

78.1 l ( 4766.0 in³ )

Engine - Rotation from Flywheel End

Counterclockwise or clockwise from flywheel end

Engine - Configuration

VEE 16, 4-Stroke Cycle Diesel

Dimensions & Weights - Length

4133.0 mm ( 163 in )

Dimensions & Weights - Height

2253 mm ( 89 in )

Dimensions & Weights - Width

1800.0 mm ( 71 in )

Dimensions & Weights - Dry Weight

11125 kg ( 24526.0 lb )

Select Up To 3 Models To Compare