Item# E4556 – Caterpillar 3408 455HP, 1800RPM Marine Diesel Engine

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    Item# E4556 – Caterpillar 3408 455HP, 1800RPM Marine Diesel Engine

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    Pre-Owned Caterpillar 3408 Marine Propulsion EngineContinuous Rating: 455HP @ 1800RPM

    24V Electric Starter

    Heat Exchanger Cooled

    IMO / RINA Engine Certified

    Approximately 12000 hours since new

    Please refer to product document “Build Sheet” for further information

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    Additional information

    Item Number

    E4556

    Rpm

    1800

    Fuel Type

    Enclosure Portable

    Manufacturer

    Serial Number Prefix

    99U

    Horsepower

    455

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    Legendary Caterpillar Reliability Meets Professional Marine Performance

    When your vessel demands dependable, hard-working power that won't let you down in critical situations, this pre-owned Caterpillar 3408 Marine Propulsion Engine delivers the proven performance commercial operators have trusted for decades. Rated at a robust 455 horsepower at 1800 RPM, this powerhouse is engineered to handle the most demanding marine applications with the durability and efficiency that made Caterpillar the gold standard in marine propulsion.

    Professional-Grade Power for Serious Marine Applications

    This isn't just another used engine—it's a carefully maintained piece of marine machinery with approximately 12,000 operating hours, representing substantial remaining service life when properly maintained. The Caterpillar 3408 series is renowned for its longevity, with many units exceeding 20,000+ hours in continuous commercial service. You're investing in a proven workhorse that's just hitting its stride.

    Key Performance Features That Matter

    • 455HP Continuous Rating at 1800 RPM – Delivers consistent, reliable power for commercial fishing vessels, workboats, tugs, and medium-sized pleasure craft without the stress of operating at maximum capacity
    • Heat Exchanger Cooling System – Protects your investment with efficient temperature management, preventing saltwater corrosion in critical engine components while maintaining optimal operating temperatures in demanding conditions
    • IMO & RINA Certified – Meets stringent International Maritime Organization and Italian Naval Registry standards, ensuring compliance for international waters and commercial operations
    • 24V Electric Start System – Reliable cold-weather starting and immediate power when you need it, eliminating the frustration of manual starting systems
    • 8-Cylinder V-Configuration – Caterpillar's legendary 3408 design provides smooth power delivery, excellent torque characteristics, and proven reliability across countless marine applications worldwide

    Built for the Marine Environment

    The Caterpillar 3408 marine engine was specifically engineered to withstand the harsh realities of saltwater environments, constant vibration, and the demanding duty cycles of commercial and recreational marine use. Every component is built to Caterpillar's exacting standards, from the marinized cooling system to the heavy-duty internal components designed for extended service intervals.

    Extensive Documentation & Transparency

    Unlike many used marine engines sold with minimal information, this unit comes with a comprehensive build sheet providing detailed specifications, configuration details, and service history. This documentation is invaluable for installation planning, maintenance scheduling, and ensuring compatibility with your vessel's requirements.

    The Caterpillar Advantage

    Choosing a Caterpillar engine means choosing access to the world's most extensive marine service network. Parts availability, technical support, and qualified service technicians are available at ports worldwide—a critical consideration when your livelihood or passion depends on reliable propulsion. The 3408's proven design means mechanics and engineers are intimately familiar with service procedures, reducing downtime and maintenance costs.

    Ideal Applications Include:

    • Commercial fishing vessels requiring dependable, fuel-efficient propulsion
    • Crew boats and supply vessels in offshore operations
    • Tugboats and harbor work vessels demanding low-RPM torque
    • Charter vessels where reliability directly impacts revenue
    • Repower projects for vessels originally equipped with comparable power ratings
    • Medium to large pleasure yachts requiring proven commercial-grade reliability

    Investment-Grade Marine Power

    At 12,000 hours, this engine represents an exceptional value proposition. With proper maintenance, you're looking at years of reliable service ahead. The 1800 RPM rating ensures lower operating stress, reduced fuel consumption compared to higher-revving engines, and extended component life—all translating to lower total cost of ownership.

    This is professional-grade marine propulsion from an industry leader, backed by decades of proven performance in the world's most demanding marine environments. Whether you're repowering a commercial vessel, replacing a failed engine, or building a new project, the Caterpillar 3408 offers the reliability, power, and global support infrastructure that serious mariners demand.

    Detailed build sheet documentation available for review. Contact us today to discuss your specific application requirements, installation support, and delivery options. Our marine propulsion specialists are ready to help ensure this engine is the perfect fit for your vessel.

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