Service & Compatible stern tube seals for all makes

At RM Propulsion, we provide oil-lubricated stern tube seals that are not only reliable but also fully compatible with equipment from major brands, including Wärtsilä (Deep Sea Seals and JMT), Wartsila seals, SKF, Simplex, Blohm & Voss, Kobelco, Kemel, and Lagersmit. Because all Ocean Seal products are DNV type-approved, you can count on dependable performance in harsh marine conditions. If you’re looking for an OEM-quality alternative to Wartsila stern tube seals or Deep Sea Seals Wärtsilä, then RM Propulsion is ready to support your vessel anytime and anywhere.

Servicing Wärtsilä Seals

RM Propulsion delivers fast, expert solutions for servicing Wärtsilä seals.
We handle everything from planned maintenance and troubleshooting to emergency seal replacement, full overhauls, and the supply of spare parts.

Vessel owners around the world trust us to restore performance quickly and minimise costly downtime.
With decades of hands-on experience in marine propulsion and sealing systems, we take action where and when it matters most, whether you operate Wartsila seals, Deep Sea Seals Wärtsilä, or any other compatible system.

Why RM Propulsion Leads in Servicing Wärtsilä Seals

Our team combines deep technical knowledge with extensive field expertise.
Engineers stationed in the Netherlands, Turkey, Estonia, and China enable us to respond quickly to global service calls.
No matter where your vessel is,  afloat or in dry dock, we arrive prepared and ready to work on your Wartsila stern tube seal system.

We guide you through the full process, from first contact to final testing.
Our focus is on simplifying decisions, accelerating repairs, and delivering real, measurable results, not just ticking boxes.

Contact Us for Wärtsilä Seal Support

If you have questions about servicing Wärtsilä seals or Deep Sea Seals Wärtsilä, reach out today.
Our expert advice is free, our support is global, and our commitment to performance is unmatched.


RM Propulsion is your trusted partner in servicing Wärtsilä stern tube seals, anywhere in the world.

*RM Propulsion has no commercial relationship with Wärtsilä®, JMT® or one of the brands within their group. We are an independent company in the marine industry.

Ocean Seal: The Trusted OEM Alternative for Seals  & servicing Wärtsilä seals

Why pay OEM prices? With Ocean Seal, you get OEM-level quality and perfect fit for all Wartsila sealing systems, at a better price.
These DNV-approved spare parts are engineered to meet or exceed OEM standards and deliver proven, long-term performance.

Trusted for All Wärtsilä Stern Tube Seal Types

We support all major Wärtsilä seal types, including OLS 2, OLS 3, OLS 4, MK2, and Air seals. Our Ocean Seal® range also fits Lips®, John Crane®, Waukesha®, Chuetsu®, Dover Japan®, JMT®, and Deep-Sea Seals® MK-2.

 

We also support other major systems, including Simplex, SKF, Blohm & Voss, Kobelco, Kemel, and Lagersmit. Looking for an OEM-quality solution without the OEM price? Ocean Seal® delivers exactly that.

All parts and services include a full one-year warranty, so you can operate with confidence.

 

Give us a Call today. Choose Ocean Seal®. Pay only for quality, not for branding.

Efficient Bonding for Wärtsilä Seals – No Shaft Removal Required

Our  stern tube seal bonding technique allows us to replace both the forward and aft Wärtsilä seals without removing the propeller shaft.
Our service engineers complete this job either afloat or in dry dock, typically within three to four days under normal conditions.

When Shaft Removal Makes Sense

In some cases, like chrome steel liner or bearing replacement, it’s practical to remove the shaft and install Wärtsilä seals directly into the housing.
This operation takes place in dry dock and ensures a long-lasting result when deeper maintenance is needed.

 

Still, for standard Wartsila stern tube seal replacement, shaft removal is not necessary, thanks to our bonding technique. For more details about servicing Wärtsilä seals, including Wartsila stern tube seals and Deep Sea Seals Wärtsilä, contact us today.


We provide fast and global service, and our OEM-alternative solutions ensure lasting performance.


Moreover, every project benefits from our decades of experience, and as a result, your vessel operates efficiently with complete confidence.


In addition, all parts and services come with a full one-year warranty for total peace of mind.

More information about our services

*RM Propulsion has no commercial relationship with Wärtsilä®, JMT® or one of the brands within their group. We are an independent company in the marine industry.