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Pre-Owned Caterpillar D399 TA Marine Propulsion Engine – Rated at 1000 HP, 1225 RPM – Open Mounted – Transmission Not Included – 1400 Hours Since Complete Overhaul
| Item Number | E4665 |
|---|---|
| Rpm | 1200 |
| Fuel Type | |
| Enclosure Portable | |
| Manufacturer | |
| Serial Number Prefix | 91B |
| Horsepower | 1000 |
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Legendary Caterpillar Power Meets Proven Reliability
When your marine vessel demands unwavering performance and time-tested durability, the Caterpillar D399 TA Marine Propulsion Engine delivers precisely what serious operators need. This pre-owned powerhouse represents decades of Caterpillar engineering excellence, offering an exceptional opportunity to equip your vessel with proven 1000-horsepower capability at a fraction of new equipment cost.
With only 1400 hours since complete overhaul, this D399 TA is essentially a renewed engine ready to tackle your most demanding marine applications. The comprehensive rebuild ensures you're getting machinery that performs like new, with the proven track record that only Caterpillar can deliver. Whether you're powering commercial fishing vessels, tugboats, crew boats, or workboats, this engine provides the reliability your operations depend on.
Proven Caterpillar Heritage: The D399 series has powered thousands of vessels across every ocean, earning a reputation for starting reliably, running efficiently, and lasting for decades with proper maintenance.
Exceptional Value Proposition: Purchasing quality pre-owned equipment allows you to access premium Caterpillar performance while maximizing your capital equipment budget for other critical vessel needs.
Low Hours Since Major Service: At just 1400 hours post-overhaul, you're acquiring an engine with the vast majority of its service life ahead of it—comparable to new in terms of remaining operational hours.
Parts & Service Support: Caterpillar's global network ensures you'll never struggle to find qualified technicians, genuine parts, or technical support regardless of your operating location.
The D399 TA's turbocharged and aftercooled design provides superior performance in challenging marine environments. The aftercooling system reduces intake air temperature, resulting in denser air charge, improved combustion efficiency, and better fuel economy—critical factors for commercial marine operations where fuel costs significantly impact profitability.
The 1225 RPM operating speed strikes the perfect balance between power output and component longevity, reducing wear on critical engine components while providing the torque characteristics ideal for direct-drive or reduction gear marine transmissions.
Please Note: This engine is sold as an open-mounted propulsion unit without transmission. This configuration provides maximum flexibility for integration with your specific vessel requirements and existing or preferred transmission systems. Our team can assist with technical specifications to ensure proper matching with your marine gear.
In the demanding world of commercial marine operations, downtime equals lost revenue. The Caterpillar D399 TA has earned its reputation by minimizing that downtime through robust construction, reliable performance, and straightforward maintenance. This particular unit, freshly overhauled and lightly used since rebuild, represents an outstanding opportunity to acquire legendary Caterpillar reliability for your vessel.
Specification-matched for your application? Contact our marine power specialists today to discuss your vessel requirements, confirm compatibility, and arrange inspection of this exceptional D399 TA propulsion engine. With premium pre-owned equipment like this, opportunities don't last long.
Power Generation Enterprises specializes in quality pre-owned power equipment, ensuring every unit meets rigorous standards before offering it to our customers. When you need proven performance you can count on, you need Caterpillar—and we're here to make that power accessible.




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