Pulleys

Pulleys

New Products

New products

All new products

Blog Categories

Blog Categories

Active filters

Pulleys – essential components of your car's drive system

Pulleys are an integral part of every car equipped with an internal combustion engine. Thanks to them, the power generated by the engine is efficiently transmitted to various accessories such as the alternator, air conditioning compressor, power steering pump, or water pump. At EccoParts.eu, we offer original and used pulleys of the highest quality, ensuring optimal power transmission in your vehicle.

How does a pulley work?

A pulley is a specially designed element mounted on shafts—crankshaft, alternator, or pump. With the help of a V-belt or multi-ribbed belt, it transmits torque, allowing different car systems to be powered. Modern cars often use crankshaft pulleys, as well as alternator, air conditioning, and water pump pulleys.

Common pulley failures and symptoms of wear

Worn or damaged pulleys can cause serious faults in a car. The most common problems include:

  • Noise from the engine compartment – squealing, knocking, or humming, especially when starting the engine or under load.
  • Damaged vibration damper in the crankshaft pulley, resulting in vibrations and irregular engine operation.
  • Cracks, breakages, corrosion – visually noticeable defects on the pulley surface or grooves.
  • Belt slippage – caused by worn grooves or excessive material wear.
  • Poor alternator charging – reduced pulley efficiency affects effective power transfer to the alternator.

Delaying pulley replacement can lead to serious consequences—timing belt breakage, engine overheating, or accessory damage.

How to choose the right pulley for your car?

Pulley selection depends on the car's make, model, and year. Parameters such as the number of grooves, diameter, material, and presence of a vibration damper are also important. At EccoParts.eu, you'll find both new, original and reliable used pulleys compatible with many popular car brands: Opel, VW, Ford, Renault, Fiat, BMW, Mercedes, Peugeot, Citroen, and others.

Frequently asked questions and answers

  • When to replace the pulley? – At the first sign of wear (noise, vibration) or when replacing the belt.
  • How to check the pulley's condition? – Visual inspection, listening for characteristic sounds, and checking belt operation are basic diagnostic methods.
  • Can a pulley be refurbished? – Some models can be rebuilt, but the safest and most recommended solution is to buy a new or carefully inspected used part.
  • What are the effects of driving with a damaged pulley? – It may cause severe engine or accessory damage, so early symptoms should never be ignored.
  • Is pulley replacement difficult? – It requires basic tools and skill, but is best entrusted to a qualified mechanic.

Why buy pulleys from EccoParts.eu?

Our store offers carefully selected pulleys, thoroughly inspected for technical condition. All items go through strict quality control, and our broad range allows you to find the right part for every car model. Fast shipping and professional advice are added advantages of buying from EccoParts.eu!