3512E Marine Propulsion Engine (U.S. EPA Tier 4 Final)

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The 3512E marine propulsion engine is now available in a wide range of ratings that meet U.S. EPA Tier 4 Final and IMO III marine emissions regulations. As the commercial marine industry adjusts their operations to meet U.S. EPA Tier 4 Final and IMO III emissions standards, Caterpillar Marine has introduced a solution built to maximize performance while meeting regulations. Caterpillar’s combination of a fuel-efficiency-optimized engine and a selective catalytic reduction (SCR) aftertreatment system is a solution that not only reduces NOx emissions, but can also lower a customer’s owning and operating costs in the process.

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    Power Range 1341-2550 bhp (1000-1902 bkW)
    Approximate Weight 12824lb
    Aspiration Twin Turbocharged - Aftercooled
    Bore 6.69in
    Configuration V 12, 4-Stroke-Cycle Diesel
    Displacement 3574in³
    Emissions U.S. EPA Tier 4, IMO II/III, EU Stage 5
    Oil Change Interval 250 / 500 / 1000
    Rotation from Flywheel End Clockwise or Counterclockwise
    Speed Range 1600 - 1800 rpm
    Stroke 8.46in
    Maximum Height 92.1in
    Maximum Length 125.4in
    Maximum Width 81.9in
    Minimum Dry Weight 18025lb
    Minimum Height 91.9in
    Minimum Length 123.5in
    Minimum Width 80.2in

    Standard Equipment:

    • Corrosion-resistant aftercooler core
    • Dual A5 engine control modules with electronic unit injection and low pressure fuel system
    • Dual turbochargers with water-cooled bearings and heat shields
    • Vibration damper and guard
    • Meets SOLAS regulations
    • Duplex Fuel and Oil Filtration
    • Auxiliary fresh water pump
    • Gear Driven, centrifugal jacket water pump with 40% more capacity

    Optional Equipment:

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