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2. Narrow V-Belts A variation of the standard belt, narrow V-belts have a smaller width, allowing for higher speeds and increased load capacity. They are ideal for smaller machinery where space is a limitation.

The term 4PK refers to a specific type of fan belt characterized by having four ribs on its inner surface. The PK designation indicates the design style, which is often found in multi-rib belts used for engaging multiple accessory components powered by the engine, such as the alternator, power steering pump, water pump, and air conditioning compressor. The ribs help to ensure a firm grip on the pulleys, enabling efficient power transfer and minimized slippage.

Proper maintenance of transmission belts is essential for vehicle longevity and performance. Typically, belts should be replaced every 60,000 to 100,000 miles, depending on the manufacturer's recommendations and the driving conditions.

The Function of the PK Belt

2. Roof Railing and Cross Bars

Principle of Variable Speed

Many Nissan dealerships and certified auto repair shops have specific protocols in place for timing belt replacements, including recommendations on replacing the water pump and other components that might be affected. This holistic approach can help avoid future problems and keep your vehicle running smoothly.

Fan Belts Built for Reliability and Versatility

- Low Maintenance Unlike chain drives or gear systems, timing belts produce less noise and require less frequent lubrication, leading to lower maintenance costs.