Seals and O-rings are important components used to ensure a tight connection and seal in the engine's oil circuit. They are used in various areas of the engine, such as on oil pumps, oil filters, oil drain plugs or oil filler caps.
These seals and O-rings are made of high-quality materials such as rubber or special elastomers that are highly resistant to oil, heat and pressure. They ensure that the oil remains in the circuit and does not leak, which enables efficient lubrication of the engine.