Valeo 588039 Alternator Decoupler Pulley

Buyer fitment guide only intended as reference. Please use catalogue search by vehicle to ensure proper fitment.

• Allow the alternator rotor to turn in freewheel mode when the engine is slowing down or stopping for maximum system efficiency, fuel savings and CO2 emissions reduction
• Ensure belt drive N.V.H. (Noise-Vibration-Harshness) for optimum driving comfort
• Protect belt drive system by filtering engine torsional vibrations to improve the belt drive longevity
• Stop friction losses caused by belt slippage
• Valeo enlarges its Electrical Systems offer with the Freewheel Pulley range. A Freewheel pulley is the mechanical link between the alternator and the engine output crankshaft pulley. The pulley drives the alternator which allows the battery to be recharged. The Overrunning Alternator Pulley (OAP), also called the freewheel pulley, is a spare part of the complete alternator. It is composed of a pulley with an outside diameter suitable for fitting a €œpoly-V€ belt (drive belt), a one-way clutch unit with bearing supports, an inner ring, two seals and an end cover in plastic.