WAI 13946N Alternator

WAI 13946N Alternator Overview

The WAI 13946N is a 90 amp alternator built for Volkswagen charging-system applications that need stable electrical output. It is a 100% new unit, not remanufactured, and uses proprietary components and manufacturing processes to support long service life and consistent performance.

Compatible with select Volkswagen Bora, Golf, Beetle, and Jetta applications, this alternator is a direct-fit option for vehicles using a Valeo-style unit. The WAI 13946N also includes an internal regulator and a serpentine pulley setup for the specified applications.

Key Features

• 90 amp amperage rating for modern vehicle electrical demand
• 100% new alternator construction, not remanufactured
• Internal fan type for integrated cooling
• Internal regulator for controlled charging output
• Clockwise (right) rotation direction
• 6-groove pulley included for serpentine belt systems
• Valeo family application coverage

Detailed Product Description

WAI 13946N is engineered as a replacement alternator for Volkswagen charging systems that specify a Valeo unit. It is listed for 2002-2006 Volkswagen Golf, 2002-2005 Volkswagen Beetle, 2004-2005 Volkswagen Jetta, 2002-2003 Volkswagen Jetta, and 2006-2008 Volkswagen Bora. The design includes an internal regulator, internal fan, clockwise rotation, and a pulley matched to serpentine belt drive layouts.

This part cross-references Remy 11019 and BBB Industries 13946 for the same application. It also aligns with OE-style interchange numbers including 06A-903-023 and 038-903-023-R among related references.

Common Issues This Alternator Can Address

• Low charging voltage or battery warning light concerns
• Dim headlights or unstable electrical performance
• Battery discharge caused by alternator output loss
• Charging-system faults on Volkswagen Golf, Beetle, Jetta, or Bora models
• Noisy or inconsistent alternator operation tied to worn charging components

Installation Notes and Tips

Verify the vehicle’s original alternator family, pulley configuration, rotation direction, and amperage rating before installation. This unit is specified for Valeo-style applications with a serpentine belt and 6-groove pulley, so matching the original setup is important for proper fitment and charging performance.

For fitment reference, this part fits 2002-2006 Volkswagen Golf, 2002-2005 Volkswagen Beetle, 2004-2005 Volkswagen Jetta, 2002-2003 Volkswagen Jetta, and 2006-2008 Volkswagen Bora.

Quality Assurance

WAI states that its alternators are built with proprietary components and processes to support maximum life and performance. The 13946N is a new replacement alternator manufactured to meet the electrical output needs of today’s vehicles.