poly v-belts

An auto V belt, often referred to simply as a serpentine or drive belt, is a looped mechanical component made from rubberized material. The V shape refers to the cross-section of the belt, which helps it grip the pulleys on the engine more effectively. The primary function of a V belt is to connect the crankshaft to several peripheral devices such as the alternator, water pump, air conditioning compressor, and power steering pump, thus ensuring that each component functions optimally.


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A PK belt, also known as a poly-V belt or serpentine belt, is a type of elastic, V-shaped belt used in various machinery, with a primary application in automotive engines. The “PK” designation signifies the belt’s design, which features multiple grooves along its length, allowing it to transmit power efficiently from the engine to various components such as the alternator, power steering pump, air conditioning compressor, and water pump. This belt design is celebrated for its flexibility and durability, making it a popular choice for modern vehicles.


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