This cooling fan pulley is a crucial component of the engine's cooling system, driving the fan to circulate air through the radiator for heat dissipation. Manufactured to meet stringent OEM quality standards, it offers superior durability and smooth operation compared to worn or damaged pulleys. Operators may observe increased engine operating temperatures, unusual noises from the front of the engine, or a visibly wobbling fan when this part begins to fail.
Always verify with serial number before ordering.
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Alternate part numbers that interchange with Volvo 20855514
Fitment: Volvo Trucks: FM13: 2005>
Inspect mating surfaces for wear before fitting. Use torque specs from service manual. Replace gaskets and seals as a set — reusing compressed gaskets causes oil leaks. Clean all oil passages with compressed air.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
A worn cooling fan pulley may first manifest as an intermittent squealing noise from the engine bay, especially under load. If the pulley bearing continues to degrade, the fan may wobble, leading to increased vibration and potential belt slippage. Neglecting a failing pulley can result in the fan detaching or the belt breaking, causing a rapid loss of engine cooling and potential overheating.
Clean the crankshaft pulley mounting surface and ensure the pulley's center bore is free of debris before installation. Do not use excessive force when tightening the mounting bolts, as this can damage the pulley or its bearing.
Inspect the cooling fan belt and the fan blades for any signs of wear or damage when replacing the cooling fan pulley.