Rear Crankshaft Seal 038103171S

A crankshaft seal is a vital component in a car that prevents oil leakage from the crankshaft area. It is typically located at the front and rear ends of the crankshaft, where it helps to maintain the integrity of the engine's lubrication system. The primary function of a crankshaft seal is to create a tight seal between the crankshaft and the engine block, preventing oil from escaping and dirt or contaminants from entering. It plays a crucial role in preserving the engine's performance and longevity.

The crankshaft seal consists of a flexible lip that is held in place by a metal case or housing. As the crankshaft rotates within the engine block, the lip of the seal continually makes contact with the crankshaft surface, forming a barrier that prevents oil leakage. Over time, the constant friction and exposure to high temperatures can cause wear and damage to the seal. Therefore, regular maintenance and replacement of faulty crankshaft seals are necessary to ensure optimal engine performance and prevent potential damage to other engine components.