WAI 11159N Alternator

Reliable Alternator Replacement for Audi A4 and Allroad Quattro

The WAI 11159N alternator is designed to provide consistent electrical charging performance for Audi A4, A4 Quattro, and Allroad Quattro models. Engineered with an internal fan and regulator, this alternator supports your vehicle's electrical system with a 140-amp output and serpentine belt compatibility.

• 12-volt electrical system compatibility
• Internal fan type for efficient cooling
• Clockwise (right) rotation direction
• Includes pulley with 6 grooves for serpentine belt
• Internal voltage regulator for stable output
• Non-decoupled clutch pulley design
• 140 amp amperage rating suitable for demanding electrical loads
• Compatible with Bosch family components

Technical Overview of WAI 11159N Alternator

This WAI alternator, part number 11159N, is built to meet the electrical demands of Audi A4 and Allroad Quattro vehicles. Featuring an internal fan, it ensures proper cooling during operation, which helps maintain performance and longevity. The clockwise rotation matches the original equipment specifications for these models. The included pulley has six grooves designed for serpentine belts, providing reliable belt engagement and power transfer. An internal voltage regulator maintains consistent voltage output, protecting your vehicle's electrical components from fluctuations. This alternator does not include a decoupled or clutch pulley, aligning with the factory design for these Audi models.

Common Applications and Problem Resolution

• Replaces failing or underperforming alternators in Audi A4, A4 Quattro, and Allroad Quattro
• Resolves battery charging issues and electrical system malfunctions
• Addresses dimming headlights and electrical accessory failures
• Eliminates warning lights related to charging system faults
• Restores proper serpentine belt-driven alternator function

Installation Notes and Tips

When installing the WAI 11159N alternator, ensure the serpentine belt is properly aligned with the 6-groove pulley. Verify the clockwise rotation direction matches your vehicle’s original alternator. Since this alternator includes an internal voltage regulator and fan, no additional external components are required. It is recommended to check the battery and electrical connections during installation to ensure optimal performance.

Quality Assurance and Warranty Information

WAI alternators are manufactured to meet or exceed OEM standards, ensuring reliable performance for Audi A4 and Allroad Quattro vehicles. This alternator is part of the Bosch family, known for quality electrical components. Please refer to WAI’s warranty policy for specific coverage details related to part number 11159N.