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Pre-Owned Caterpillar 3406E Marine Propulsion Engines – Rated at 800HP, 2300RPM – 5000 hours since rebuilt – Twin Disc MG5114A transmissions are installed, relational 1.75: 1 – Running Take Out – 2 units available
| Item Number | E4684 |
|---|---|
| Rpm | 2300 |
| Fuel Type | |
| Manufacturer | |
| Horsepower | 800 |
| Weight | 1 lbs |
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Transform your marine vessel's performance with proven power you can trust. These pre-owned Caterpillar 3406E Marine Propulsion Engines deliver the legendary reliability and robust performance that Caterpillar is renowned for—now available as running take-outs from active service.
Each engine is rated at an impressive 800 horsepower at 2300 RPM, providing the muscle you need for commercial fishing operations, workboats, tugboats, or pleasure craft conversions. With only 5,000 hours since professional rebuild, these engines are positioned at the sweet spot of their operational life—fully broken in yet with thousands of productive hours ahead.
These aren't bare engines—each unit comes equipped with Twin Disc MG5114A marine transmissions already installed, featuring a 1.75:1 reduction ratio. This turnkey configuration saves you significant installation time and eliminates the headache of sourcing compatible transmissions separately. You're getting a complete, tested propulsion system ready for integration.
Unlike salvaged or unknown-condition engines, these units are running take-outs—meaning they were removed from active, operational vessels. This critical distinction provides peace of mind that you're investing in engines with verified performance, not dormant cores or questionable rebuilds.
Whether you're repowering a commercial fishing vessel, upgrading a charter boat, equipping a workboat, or converting a pleasure craft, these 800HP Caterpillar engines provide the reliable thrust and longevity your operation demands. The 3406E's robust construction and proven track record make it the smart choice for vessel owners who refuse to compromise on quality.
Purchasing pre-owned engines with documented running history and recent rebuilds offers exceptional value compared to new engine packages—often at a fraction of the cost. With two units currently available, this is your opportunity to secure matched engines for twin installations or to have a spare unit for future needs.
Don't let this opportunity sail away. Premium Caterpillar marine propulsion engines with low hours since rebuild and verified running condition don't remain available for long. Contact Power Generation Enterprises today to discuss specifications, arrange inspection, or secure these engines for your vessel.
Professional maritime operators know that engine reliability isn't just about performance—it's about safety, uptime, and protecting your investment. Choose the power of Caterpillar for your next repower project.




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