WAI 11641N Alternator

200 Amp Alternator for Ford Super Duty

WAI 11641N is a 100% new alternator built for high-demand charging systems in Ford F-250 Super Duty and Ford F-350 Super Duty trucks. It delivers 200 amps of output to support modern electrical loads while maintaining OE-style fitment and performance.

Key Features

• 200 amp amperage rating for higher electrical demand
• 100% new construction, not remanufactured
• Internal fan and internal voltage regulator
• Clockwise (right) rotation
• 6-groove pulley included for serpentine belt systems
• DENSO family design

Product Details

This WAI alternator, part number 11641N, is engineered for direct replacement use on 2013-2022 Ford F-250 Super Duty and 2013-2022 Ford F-350 Super Duty applications. The unit is built with proprietary components and manufacturing processes to support long service life and stable charging performance. It is configured with an internal fan, internal regulator, clockwise rotation, and a pulley for serpentine belt drive systems.

This part cross-references Quality-Built 11641 for the same application.

Common Charging System Issues

• Low battery charge or repeated battery drain
• Dim lights or fluctuating electrical output
• Charging warning light on the dash
• Accessory performance problems under load
• Alternator noise or charging instability

Installation Notes

Verify pulley groove count, belt type, rotation direction, and electrical connector match before installation. Confirm the vehicle uses the 200 amp configuration listed for the application. This alternator is listed for Ford F-250 Super Duty and Ford F-350 Super Duty models with the specified fitment.

Quality Assurance

WAI builds this alternator as a new unit rather than a remanufactured assembly, using proprietary components and processes aimed at consistent output and durability.