This JAS twin groove pulley is designed as a robust replacement for compatible Bosch alternators. Featuring a twin 10A groove configuration for A section belts, it delivers accurate belt tracking and consistent power transmission. Precision machined and dynamically balanced to minimise vibration, the pulley helps extend belt life and reduce noise. Constructed from high grade steel with a corrosion resistant finish, it meets demanding workshop requirements and is manufactured to align with OEM style specifications for straightforward installation.

• Brand: JAS
• Type: Alternator pulley
• Groove configuration: Twin 10A
• Material: High grade steel with corrosion resistant coating
• Balance: Dynamically balanced for low vibration
• Application: Replacement for compatible Bosch alternators
• Category: Belts and timing pulleys
• Fitment advice: Use Parts Checker to confirm compatibility

Before purchase confirm compatibility using the Parts Checker to ensure the pulley suits your specific alternator model. Professional fitting is recommended and when replacing the pulley inspect the belt and alternator bearings for wear to ensure reliable long term performance.