Services and support for your 2-stroke engines

• Marine 2-stroke engine services Wärtsilä supports 2-stroke marine engines across brands with upgrades, spare parts, maintenance, advisory. Improve efficiency, meet regulations, cut emissions. Learn more
• Marine spare parts Get genuine, high-quality OEM parts that perform predictably in your engine and onboard systems – with the documentation and expertise to reduce downtime and compliance risk. Find your nearest Wärtsilä contact
• Wärtsilä Health check for two-stroke main engine The Wärtsilä Health check for two-stroke main engines provides a clear picture of the engine’s condition and reveals the implications for reliability, fuel consumption and lubrication oil consumption. View more
• Smoother ship overhauls with reconditioned parts The Wärtsilä Exchange Parts service is a great way to ensure a smooth overhaul. You can avoid costly delays because you will have already reconditioned parts readily available. Learn more

Services and support for your 2-stroke engines

Whether you're operating LNG carriers, container vessels, tankers or bulkers, your 2-stroke engines are central to your profitability. Wärtsilä’s 2-stroke engine services help you get more from your assets because our tailored support can help you cut emissions, improve efficiency and your profitability.

With our services, your 2-stroke engines can keep running better and longer.

At a glance: 2-stroke engine services from Wärtsilä

Wärtsilä offers a full portfolio of services for Sulzer, Wärtsilä and WinGD branded 2-stroke low-speed engines. The portfolio of services is designed to help you improve performance and cut emissions, and to support your operational goals. The 2-stroke services offering includes:

Operational reliability and support

• Spare parts, kits, and parts servicesNew and remanufactured parts on exchange basis, tailored kits, and logistics support.
• Field services and workshopsOnboard and onshore 2-stroke engine maintenance, troubleshooting and 2-stroke engine repair.
• Engine health check and pre-dry dock inspectionEngine’s condition assessments which support your planning and help you avoid surprises.
• AgreementsFlexible service agreements tailored to your vessel or fleet.
• Technical Services
• Dry dock services

Efficiency and decarbonisation advisory

• Engine upgradesProven retrofit packages such as SSUK, FEB, WPLO, ICC, FAST, FuelFlexICU, RPLS and Fit4Power. They can improve fuel efficiency and help you meet compliance requirements.
• Fuel conversionsAdvisory and implementation support for converting your engines to run on alternative fuels.
• Decarbonisation advisoryVessel specific or fleet-wide guidance to help you meet CII, or other sustainability goals.

Knowledge and crew empowerment

• Crew instructionTraining for your crew and technical managers. Achieve safe, efficient engine operation.
• Remote Operational Support (ROS)24/7 expert diagnostics and virtual crew assistance.

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Technical support 24/7 to ensure your smooth operations

Wärtsilä 2-stroke engine services

Get strategic lifecycle support for your fleet. Your vessel’s 2-stroke engines are under increasing pressure to perform efficiently, comply with evolving regulations, and support your business goals — all while controlling costs.

Operational reliability and support

Keep your vessels running smoothly. From day-to-day operation to dry dock planning, these services help you stay ahead of risks and downtime:

Spare parts, kits, parts, and other services

Wärtsilä 2-stroke services provide reliable OEM spare parts, kits, and parts services for non-Wärtsilä engines. Contact us to get a quotation for spare parts or kits!

Use the same form to request a tailored quotation for any 2-stroke service offering, including engine health checks.

Technical services: expert support for your 2-stroke engines

When your vessel faces technical challenges, you need fast, reliable solutions to keep your fleet running and compliant. Wärtsilä’s technical services for 2-stroke engines put expert support at your fingertips and help you

• resolve issues quickly
• prevent costly downtime
• optimise performance

These services will deliver benefits for your vessels, in particular for LNG carriers, container vessels, tankers, and bulkers.

What you can expect:

• Immediate expert assistance: Get 24/7 access to Wärtsilä’s technical specialists for troubleshooting, diagnostics, and emergency support—wherever your vessel operates.
• Comprehensive problem-solving: Benefit from root cause analysis and specialised engineering expertise to resolve complex issues and prevent repeat failures.
• Proactive maintenance planning: Receive tailored advice and solutions to maximise uptime, extend engine life, and reduce unplanned repairs.
• Advanced diagnostics and field services: Access laboratory analysis, onboard surveys, and field testing, all customised to your vessel’s operational profile.
• Crew empowerment: Clear documentation and collaborative learning help your team operate and maintain engines safely and efficiently.

You will benefit from:

• Proven support for Sulzer, Wärtsilä and WinGD branded 2-stroke low-speed engines
• Fast response to technical requests and emergencies
• Solutions that help you comply with regulations and sustainability targets
• Global reach and deep OEM expertise

Emergency support and remote support

Expert help, wherever you are. When things go wrong, fast and expert support makes all the difference. Wärtsilä’s Remote Operational Support, ROS acts as a virtual crew member and offers:

• 24/7 remote diagnostics and troubleshooting
• Emergency repair teams with global reach
• AI-assisted insights to prevent repeat failures

Ready to act? Contact us to get a quotation for ROS service!

Decarbonisation advisory for 2-stroke engines to boost compliance and competitiveness

When you need to meet regulations and sustainability targets – or improve your vessel’s efficiency without compromising profitability, Wärtsilä’s Decarbonisation advisory will help you. Our experts provide tailored recommendations based on your vessel type and operational profile.

Wärtsilä can be your strategic partner on the journey to lower emissions and better performance. It is possible to upgrade existing 2-stroke engines to achieve up to 15% improvements in fuel efficiency and emissions reduction, extending vessel lifetime and reducing operating costs.

Case in point: Ulusoy Sealines bulkers improved their CII rating by 5%, saving 250 tons of fuel and 780 tons of CO₂ annually per vessel with Wärtsilä’s integrated upgrade package.

Not sure which upgrades are right for your vessel or fleet?Contact us to request a free consultation with our experts to explore your options.

Efficiency improvements for 2-stroke engines

As your vessel matures, so do the demands. A more energy efficient fleet will benefit your bottom line – but how to turn a possibly out-of-shape vessel into an agile, high-performing one?

Wärtsilä helps you stay ahead with upgrades – and experts can advise you on the best choices for your fleet’s operational profile:

• FAST upgrade for fuel savings and improved cylinder condition
• Wärtsilä Part Load Optimisation (WPLO) for 2-stroke engines to make the engine more efficient
• Intelligent Combustion Control system (ICC) to reduce fuel oil consumption and maintenance costs as well as ensure operational reliability
• Engine Power Limitation (EPL) and Fit4Power derating for EEXI/CII compliance
• Integrated upgrade packages for efficiency and emissions
• Fuel efficiency boost
• Case in point: Kuwait Oil Tanker Company (KOTC) retrofitted four VLCCs with Wärtsilä’s FAST and ICC upgrades, followed by the Fuel Efficiency Boost (FEB). One vessel achieved a 6% fuel saving at 50% engine load — exceeding expectations and supporting KOTC’s long-term decarbonisation strategy.

Wärtsilä can be your coach on the journey and find the best solutions for your fleet and goals. It is possible to upgrade