8 rib serpentine belt

The timing belt is a crucial component in the functioning of internal combustion engines, including those found in Peugeot vehicles. It plays a pivotal role in synchronizing the movement of the engine's crankshaft and camshaft(s), ensuring that the engine's valves open and close at the proper times during each cylinder's intake and exhaust strokes. In this article, we’ll explore the importance of the timing belt, the potential consequences of neglecting it, and guidelines for maintenance specific to Peugeot cars.


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The “4PK” designation refers to the specific configuration of the belt itself. The 4 indicates that the belt has four ribs, while PK signifies that it is part of the multi-ribbed belt category, also known as serpentine belts. This type of belt is designed to drive multiple accessories such as the alternator, water pump, power steering pump, and air conditioning compressor. The use of multiple ribs provides a greater surface area for friction, enabling the belt to efficiently transfer power from the engine crankshaft to the various components.


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