Stern tube seal service for Lagersmit Supreme systems

RM Propulsion offers the full range of services for your Lagersmit Supreme stern tube seals. Our expert service engineers have years of experience in maintenance and overhauling, repairs, and replacements for your stern tube seal Lagersmit systems.

For questions, concerns, or general advice, reach out to us directly for a free consultation. Our servicing for Lagersmit Supreme stern tube seals comes with a one-year warranty.

Ocean Seal® compatible stern tube seals for Lagersmit Supreme

Our Ocean Seal® stern tube seal spare parts are compatible with Lagersmit products, including the following seal types:

  • Supreme Standard seals
  • Supreme Ventus seals
  • Lagersmit air seals seals

In addition to our compatible spare parts for your Lagersmit Supreme stern tube system, our service technicians are always ready to install them for you. You can rely on our technical experience and knowlegde, we know your Lagersmit stern tube seal systems inside out. More about our own Ocean Seal® Click here.


A proudly Dutch company, Lagersmit traces its history back to the shipyards of Kinderdijk where its predecessor, the L. Smit & Zoon copper and iron foundry, was established in 1856. Exactly a century later, Lagersmit itself was officially founded in 1956. The company has made sealing solutions for the marine industry its primary focus since the 1960s, and prides itself on having supplied over 50,000 seals to its customers to date. This history provides the foundation for the company’s deep expertise and specialisation in the marine, tidal energy, and water industries – although today, Lagersmit provide solutions for additional industries, including mining.

Supreme® brand

Since 2010, the company has maintained its headquarters in nearby Alblasserdam, and following its divestment by Royal IHC in 2014, became a fully independent OEM under its original name of Lagersmit.

Lagersmit stern tube seals fall under the Supreme® brand, which includes solutions for specific environmental protection, extra-safe designs and customisation options. Lagersmit’s innovative range also includes bearings for the stern tube seal, as well as thrusters, gearboxes, and many more high-quality industry solutions.