poly v belt pulleys

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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The steering belt, often referred to as the power steering belt, is an essential part of the power steering system. This belt connects the engine's power steering pump to the engine itself. The primary function of this belt is to transfer power from the engine to the pump, allowing for the proper functioning of the power steering system. While modern vehicles may employ electric steering systems that do not use belts, the majority of older and some newer models still rely on hydraulic power steering, making the steering belt an indispensable component.


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