Premium Caterpillar 3412 Marine Propulsion Engines – Ready to Power Your Vessel

When your marine operation demands uncompromising reliability and raw power, nothing delivers like the legendary Caterpillar 3412. These new, factory-fresh marine diesel engines represent decades of engineering excellence, offering you 635 horsepower at 1800 RPM – the perfect balance of torque and efficiency for serious marine applications.

With several units currently available, this is your opportunity to equip your commercial vessel, yacht, or workboat with one of the most trusted names in marine propulsion. Whether you're powering a fishing vessel through rough seas or cruising in luxury, the CAT 3412 delivers consistent, dependable performance mile after mile.

Engineered for Marine Excellence

The Caterpillar 3412 isn't just an engine – it's a complete propulsion solution designed specifically for the demanding marine environment. Every component has been engineered to withstand saltwater corrosion, constant vibration, and the rigorous duty cycles that marine applications demand.

• 635 Horsepower @ 1800 RPM – Robust power delivery with exceptional fuel efficiency for extended range and lower operating costs
• Starboard Side Configuration – Professionally configured for optimal installation and maintenance access
• Electric Starting Motor (LH) – Reliable cold-start capability even in challenging marine conditions
• 24V Charging Alternator – Integrated electrical system support keeps all your onboard systems powered
• CAT Electronic Governor – Precise RPM control and load response for smooth operation in all conditions
• Heat Exchanger Cooling System – Efficient, reliable cooling that protects your investment while maximizing performance

The CAT Advantage: Built for Longevity

Caterpillar's reputation in marine propulsion isn't accidental. These engines feature heavy-duty construction with cast iron blocks, forged steel crankshafts, and precision-machined components that are designed for thousands of hours of reliable operation. The 3412's proven architecture has powered vessels worldwide for decades, with many engines still operating reliably after 20+ years of service.

The heat exchanger cooling system means you can operate efficiently in both fresh and saltwater environments, while the electronic governor ensures responsive power delivery whether you're maneuvering in tight quarters or running at cruise speed.

Multiple Units Available – Act Now

With several new engines in stock, you have the flexibility to power single or multi-engine installations. This also means you can secure matched engines for twin-screw applications, ensuring synchronized performance and simplified maintenance schedules.

Complete technical specifications are available in the detailed Build Sheet – providing you with all the installation and integration data you need for confident purchasing decisions.

Worldwide Service & Support Network

Choosing Caterpillar means you're never alone on the water. CAT's extensive global dealer network ensures parts availability and expert service wherever your vessel travels. This peace of mind is invaluable for commercial operators and serious cruisers alike.

Item #E4535 | New Condition | Multiple Units Available | Full Build Sheet Documentation Included