Piston rings for diesel, gas and marine engines
Precision components for powerful engines: piston rings in the B2B sector
Piston rings are a key component in modern combustion engines. On this page, you will find a wide selection of high-quality piston rings for diesel and gas engines – ideal for use in ships, generator systems, and locomotives.
Are you buying as a business customer? Then you’ll find exactly the OEM spare parts you need at our shop – whether you're a technical buyer, shipyard, industrial operator, or fleet manager.
Learn more here about the different types of piston rings, their function, areas of application, as well as important information about service life and cost.
What is a piston ring – and why is it so important?
A piston ring is a metallic sealing ring mounted on the piston of an internal combustion engine. Its main tasks are to seal the combustion chamber from the crankcase, regulate oil distribution along the cylinder walls, and conduct heat from the piston to the cylinder wall.
There are different types of piston rings, such as compression rings or oil control rings, each with specialized functions.
Piston rings are usually made from high-alloy steels or cast iron and often feature coatings to reduce friction and extend service life.
Modern piston rings must withstand high temperatures, pressures, and mechanical loads – especially in high-speed diesel engines with turbochargers or in stationary industrial gas engine applications.
How long do piston rings last?
This is a common question for many operators: In general, piston rings have a service life of several thousand operating hours. However, this depends heavily on operating conditions, maintenance intervals, and the type of fuel used.
If you notice a drop in performance, increased oil consumption, or excessive smoke, it’s often time to replace the piston rings.
A worn piston ring can lead to loss of compression, oil entering the combustion chamber, and increased emissions. To avoid major engine damage, replacement should be done in time.
Replacing piston rings – effort and cost in B2B environments
Replacing piston rings is a labor-intensive process, as the engine usually needs to be partially or fully disassembled.
In marine engines and stationary systems, this is typically done during scheduled maintenance or overhauls. The cost of replacing piston rings includes part costs, labor hours, and potential downtime.
However, using high-quality OEM piston rings can help extend maintenance intervals and minimize operational risks.
Typical applications for piston rings
Our piston rings are suitable for your diesel and gas engines in marine and stationary applications and rail systems – and meet the highest standards for durability, sealing performance, and load resistance.
Compatibility with leading brands
We offer piston rings compatible with a wide range of renowned engine manufacturers and series:
These spare parts are compatible with the respective engines and are suitable for both maintenance and overhaul operations. [Find the right piston rings for your brand →]
Buy piston rings – directly in our online shop
As an experienced B2B supplier for OEM spare parts, we offer a seamless ordering process directly via our online shop. You can inquire and order piston rings 24/7 – with quick processing and fast delivery.
We are happy to assist you in identifying the correct part number.
[Request piston rings now →]
The extra value for your purchase
All spare parts we ship are inspected and packed by our in-house warehouse team. This ensures that you only receive flawless goods – quickly, safely, and reliably.
Thanks to our large warehouse stock located near Cologne/Bonn Airport, we can dispatch many piston rings immediately – including via DHL Express international.
