Is your Mustang's alternator pulley noisy, wobbly, or the clutch seized? This RAREELECTRICAL replacement pulley is a direct fit for 2005-2006 Ford Mustangs with the 4.6L V8 engine. It replaces the OEM Ford part numbers 4R3T-10300-BB and 4R3Z-10346-BB (also crosses to several other Ford numbers). It's a 6-rib serpentine pulley with a one-way clutch mechanism inside – this allows the alternator to freewheel when the engine decelerates, reducing belt wear and noise. The pulley has an inner diameter (ID) of 17mm (0.669\), outer diameter (OD) of 60mm (2.362\), and a thickness of 37mm (1.457\). The thread size for the mounting bolt is M16 x 1.5mm. It comes with a protective cover. Weighs about 2 lbs. Installation requires removing the old pulley (usually with a special pulley removal tool) and installing this one. Always verify your old part number matches before ordering. A simple fix for a common wear item.
