Rubber rings that seal fluid passages and joints.
Sealing rings are used across engines, driveline parts and hydraulic systems. Flattened or cracked rings can cause slow leaks or pressure loss. Match diameter, cross section and material rating. Clean grooves before fitting new rings. Correct sealing helps keep fluids where they are needed.
Reusing is not recommended because old rings often deform under load.
Match the material to the fluid and temperature range.
Slow leaks can affect pressure and cause long term damage.