OE#0009986590 For Mercedes-Benz C230 C300 E350 Engine Oil Separator Cover Camshaft Cap Set

The working principle of the camshaft rear cover oil seal is to prevent lubricating oil leakage through a sealing device and to stop external dust and impurities from entering the engine interior.
The camshaft rear cover oil seal is located at the rear end of the engine camshaft and is a crucial sealing device. Its main function is to prevent the leakage of lubricating oil and to stop external dust and impurities from entering the engine interior. The oil seal on the camshaft rear cover is an important line of defense in the engine lubrication system. If this line of defense malfunctions, it will not only lead to a decline in engine performance but also may cause more serious mechanical failures.