This is a belt tensioner assembly for Volvo excavators and trucks, maintaining optimal tension on the accessory drive belt. It ensures consistent power delivery to components like the alternator, water pump, and air conditioning compressor, preventing belt slippage. A worn tensioner will exhibit a noisy pulley, a loose or flapping belt, or a complete loss of accessory function, leading to overheating or battery discharge.
Always verify with serial number before ordering.
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Cross-reference part number with serial number before ordering to confirm fitment. Keep original parts until new ones are confirmed correct. Record part numbers replaced for future reference.
Always consult the OEM service manual for model-specific torque values and procedures. WhatsApp our technical team if you need fitment guidance.
A squealing or rattling noise from the front of the engine, especially on startup or acceleration, indicates a potential issue. The drive belt may appear loose or flap excessively, leading to intermittent loss of power to accessories like the alternator or water pump. If the tensioner fails completely, accessory function will cease, potentially causing battery discharge or engine overheating.
Release tension slowly and carefully to avoid sudden spring release. Ensure the new tensioner pivots freely and aligns correctly with the belt path.
Always inspect the condition of the accessory drive belt and all driven pulleys (alternator, power steering, A/C, water pump) for wear or damage when replacing the belt tensioner.