Wärtsilä 46 Marine Engine – Technical Data & Specifications
Engine Summary
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Engine Information
Engine Family: Wärtsilä 46 Marine Engine – Technical Data & Specifications
Engine Type: Dual Fuel Engine
Description
The Wärtsilä 46 marine engine is a medium‑speed, high‑output propulsion platform engineered for heavy‑duty commercial vessels requiring dependable performance, strong fuel efficiency, and long service intervals. Known for its robust construction and proven long‑term reliability, the Wärtsilä 46 is widely deployed in tankers, cargo ships, RoPax ferries, and offshore support vessels. Its modular design supports efficient maintenance and flexible integration, while its fuel compatibility and stable combustion characteristics make it one of the most trusted medium‑speed engines in global maritime operations.
Specifications
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Dimensions & Weight
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Compliance
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Accessories
Standard Accessories
- Engine control and monitoring system
- Fresh‑water cooling pumps (HT/LT circuits)
- Lube oil pump, filters, and oil cooler
- Fuel injection equipment and high‑pressure fuel lines
- Turbocharger and charge‑air cooling system
- Air‑start system with starting valves
- Crankcase ventilation system
- Exhaust manifold and insulation components
- Vibration dampers and flexible engine mounts
- Standard instrumentation for temperature and pressure monitoring
- Safety shutdown and alarm system
- Built‑in lifting lugs and service platforms
- Standard wiring harness and electrical connections
Optional Accessories
- SCR or exhaust gas scrubber systems for IMO Tier III complianceAdditional fuel treatment and purification units
- Redundant lube oil pumps and extended‑capacity oil tanks
- High‑capacity cooling modules for demanding operating environments
- Remote monitoring and diagnostics packages
- Advanced vibration and condition monitoring systems
- Alternative turbocharger configurations for optimized performance
- PTO/PTI systems for hybrid or auxiliary power applications
- Heavy‑duty alternators and generator sets
- Noise and vibration reduction kits
- Customized control panels and automation interfaces
- Auxiliary starting air compressors and additional air receivers
- Upgraded filtration systems for fuel, oil, and cooling circuits
- Special marine‑grade insulation and protective coatings
- Engine room installation kits and mounting solutions
Warranty
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Additional Notes
Operational scope The Wärtsilä 46 engine is designed for continuous heavy‑duty marine operation and can be configured for a wide range of vessel types and propulsion layouts.
Performance variability Actual performance values may vary depending on cylinder configuration, fuel type, ambient conditions, and installation parameters.
Data subject to change All technical data is subject to change based on manufacturer updates and classification requirements.
Integration guidance For integration into specific vessel designs, consultation with certified marine engineers and class authorities is recommended.
Authorized parts & service Spare parts, service tools, and maintenance documentation should be sourced through authorized channels to ensure compliance and long‑term reliability.