12638803 Alternator Freewheel Clutch Pulley ✨ For GM, Opel, and Vauxhall models using OEM 12638803
This alternator overrunning pulley (freewheel clutch) is designed to work with select General Motors, Opel, and Vauxhall vehicles. It helps reduce belt vibration, ease alternator load, and improve idle smoothness. Compatible with OEM part number 12638803.
🟢 OEM part reference: 12638803 🟢 Fits Opel Astra G (1998-2003) 🟢 Fits Chevy Cruze (2014-2016) 🟢 Also compatible with select Vauxhall/Opel models using same OEM spec 🟢 Designed to minimize tension spikes and improve alternator function
