Bosch AL0930N Premium 100% New Alternator 140 Amp

The Bosch AL0930N is a premium 100% new alternator engineered to deliver 140 amps of reliable charging power. Designed as a direct OE replacement for select Volkswagen Jetta models, this alternator features all-new components—not remanufactured parts—ensuring maximum reliability and performance even under extreme operating conditions.

Key Features:

• 140-amp output capacity for high electrical demand applications
• 100% new construction using original equipment quality components
• Advanced bearing technology with precision grinding and polishing for up to 30% longer life
• Rigid welded electrical connections for superior durability in high-heat environments
• Internal voltage regulation with single pivoted lever design
• Comprehensive testing to OE manufacturer specifications
• Water intrusion tested to IPX4, IPX4K, and IPX9K standards for all-weather reliability
• Temperature tested from -40°F to +248°F to ensure performance in extreme climates

Bosch leverages over 100 years of alternator manufacturing expertise to deliver charging performance you can trust. Each unit undergoes rigorous testing including lifetime simulation, thermo-shock testing, and splash water tightness validation to guarantee it meets the highest industry standards. Replaces OEM part number 04C903023L and 04C903023T.

Important Installation Note: Always ensure the battery is fully charged before installing a new alternator. Alternators are designed to maintain battery charge, not to fully charge a depleted battery, which can damage internal components.