Marine spare parts – buy genuine OEM parts online

• 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
• Buyer's guide to ship spares: 11 questions that help you make better decisions Buying spare parts can be tricky. This guide runs through the main questions you need to ask to make sure the parts you’re considering will meet all your needs. Download the free guide
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• Ship maintenance: 5 strong reasons why you really need to plan it Regular maintenance and overhauls do not always go as planned. Download this whitepaper and you will learn 5 strong reasons why you should plan maintenance in advance. Learn more: Download the whitepaper now
• How to make the best maintenance plan for your ship – the simple way Proper planning is the key to a successful maintenance or overhaul project. And it can be simpler than you think. Learn more – download this white paper! Download the whitepaper now

Marine spare parts – buy genuine OEM parts online

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.

Find and buy spare parts in Wärtsilä Online

At a glance

• Global delivery that helps you avoid unplanned downtime (90% of orders shipped immediately)
• Easy to buy: check availability and prices, track orders in Wärtsilä Online
• Compliance with the latest specifications and marine standards
• 12–18 month warranty (longer when installed by authorised Wärtsilä experts).

Buy ship spare parts online - how it works

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:

• Engine or equipment type
• Model and serial number of the engine or other equipment
• Part number (if known)

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.

If you want to make better purchasing decisions, download the guide:Buyer’s guide to ship spares: 11 questions that help you make better purchasing decisions

Buy marine spare parts with confidence 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:

• Check spare part availability and prices before you order
• Find and order the correct spare parts based on your equipment data
• Create requests for quotation (RFQs) and Purchase Orders (POs)
• Find predefined kits, tailored packages, or reconditioned parts for even easier maintenance.
• Track and trace spare part deliveries
• Register and follow spare part warranty claims
• Access your spare part order history
• All the information and support you need to buy marine spare parts is available in one service hub. You will find technical documentation there 24/7 – manuals, service bulletins, installation data, service history.

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.

Get access to Wärtsilä Online if you aren’t a user yet

Why buy OEM spare parts from Wärtsilä

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.​

• Wärtsilä Online is available 24/7.​
• Nearly 3,000 service professionals in 50 countries.​
• Fast, dependable logistics (90% of orders shipped immediately). View video

Not sure which part you need?

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.

How to ensure compatibility?

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.

• Select the correct spare parts catalogue based on product type (Wärtsilä 32, for example)
• In the catalogue, select the engine/equipment model (for example, 8L32) to narrow the selection to the correct configuration.
• Check the serial number (for example, S/N 123456) to determine which revisions, updates, or exceptions apply to that specific engine.
• You will see the part number that identifies the exact component and version/revision to order for that engine and configuration.

What do customers say about Wärtsilä spare parts and expert support?

Customers value Wärtsilä spare parts not just for a