Choose Wärtsilä's genuine, high-quality original equipment manufacturer (OEM) spare parts. They perform predictably in your engine and onboard systems – so your vessel stays operational and compliant throughout its lifecycle.
Wärtsilä spare parts comply with the latest specifications and are designed to perform predictably in your systems, which reduces the risk of unscheduled downtime.
Genuine marine spare parts from Wärtsilä are also less prone to premature wear or deterioration, which saves you money in the long run.
Buying spare parts for your ship should be straightforward. Wärtsilä Online brings availability, pricing, ordering, tracking, and key documentation into one place.
Step 1: Identify your equipment
Have the following ready:
Step 2: Check availability and price
In Wärtsilä Online, you can check availability and prices before you order, and you can track your orders — without guesswork or long email chains.
Step 3: Place your order with confidence
You will receive genuine OEM parts that comply with the latest specifications, supported by warranty, documentation, and expert support when needed.
90% of orders are fulfilled directly from the inventory.
NOTE: There may be dozens of versions of the same part available in the market. If you buy a wrong version, the part may not work as designed. This can cause unpleasant, expensive surprises later. Find step-by-step instructions for identifying the correct spare part lower down on this page
And if you need help selecting the right part, expert technical support is available in Wärtsilä Online.
Finding and buying the right marine spare parts can be a time‑consuming task, especially if your tools and data are scattered and you have an urgent need for the part. Wärtsilä Online brings everything you need into one place, so you can move from identification to ordering with fewer delays and fewer uncertainties.
With Wärtsilä Online, you can:
That means less time searching across systems – and more confidence that you are ordering the right part, with the right documentation, at the right time.
Wärtsilä Online can be integrated with your company’s procurement platform, making it even easier to align spare parts purchasing with your internal processes.
When you choose spare parts, the biggest risk is not the purchase price – it’s uncertainty: fit, performance, compliance, and knock‑on failures.
Predictable system performance
Wärtsilä genuine OEM parts are designed to work in your systems as intended and perform in a predictable way, which reduces the risk of premature wear and unexpected issues.
Lower risk of non-compliance
As a ship owner or operator, you are accountable for your engines being emission-compliant after repair or maintenance. Genuine Wärtsilä spare parts help you stay compliant and low‑risk because the components can be trusted.
Lifecycle documentation included
You can access key technical information 24/7 — including manuals, service bulletins, installation data and service history — so you can make informed decisions, not assumptions.
A simpler, safer buying process
Wärtsilä Online makes it easier to buy the right part by letting you check availability and prices, track orders, and access support and documentation in one hub. Less effort, fewer surprises.
Audit readiness and stakeholder confidence
Accurate component data and dependable lifecycle records help ensure audit readiness and build long‑term trust with regulators, class societies, and other stakeholders.
Support that keeps your vessel moving
When an issue can’t wait, you can get the support you need – anytime, anywhere.
Finding the right spare parts that are of the correct version is important because the wrong choice could disrupt operations and increase compliance risk.
There can be dozens of different versions of a part in the market, and all of them are not necessarily compatible with your equipment. Compatibility means that the part will not only fit, but that it will work exactly as it must to ensure that the whole system operates as designed.
The easiest way to find and buy the right spare parts for your vessel is through Wärtsilä Online.
When you follow this procedure, you will ensure that you will order the correct part and its latest version.
When you follow this procedure, you will ensure that you will order the correct part and its latest version.
Customers value Wärtsilä spare parts not just for availability, but for the confidence they bring to daily operations.
“Best service and quality parts”
“High-quality parts delivered on time with any problems resolved quickly.”
“Knowledgeable team, good support, good communication – Wärtsilä deserves all the best words”
“I am always happy dealing with Wärtsilä people. They are responsive, easy to contact and dependable.”
“Experienced engineers, constant improvement, safety first, high level of customer service.”
“I feel relaxed as Wärtsilä takes care of the issues professionally.”
Buy spare parts for 4-stroke engines and other equipment: use Wärtsilä Online to simplify ordering.
Find technical documentation: manuals, service bulletins, installation data, service history — available 24/7).
Get technical support and consultation for parts selection, troubleshooting, or technical questions from Wärtsilä Online.
Wärtsilä’s propulsion maintenance sets make maintenance easier. The sets include all the components you need to perform specific maintenance jobs on propulsion products.
Smoother and easier overhauls. All-in-one engine and propulsion overhaul packages include the necessary spare parts – and the overhaul work is included.
Reconditioned parts. If your budget is tight, the Wärtsilä Exchange Parts service is a great way to ensure a smooth overhaul. You can avoid costly delays because you would already have reconditioned parts readily available.
Wärtsilä supports engines and several other critical marine systems with genuine OEM spare parts and expert services:
If you’re validating a purchase decision – or planning maintenance and want to reduce risk – these resources provide practical guidance from Wärtsilä experts.
Expert tips newsletter: spare parts, ship maintenance and repairs
A monthly email with practical tips and real life examples to help keep your vessel reliable and compliant - for operators who want ongoing guidance, not just one off reading.
Choose genuine OEM spare parts designed to work predictably in your marine systems - with the documentation and support to reduce risk and keep operations reliable.
