WAI 13940N Alternator

Reliable Alternator Replacement for Nissan Altima

The WAI 13940N alternator is designed specifically for Nissan Altima models, providing dependable electrical charging and starting performance. Engineered with an internal fan and regulator, this alternator ensures efficient operation and consistent power delivery.

• 12-volt electrical system compatibility
• Internal fan type for optimized cooling
• Clockwise (right) rotation direction
• Includes a 6-groove serpentine pulley
• Internal voltage regulator for stable output
• 110 ampere rating suitable for standard electrical loads
• Hitachi family design for quality and durability

Detailed Product Features and Specifications

The WAI 13940N alternator is built to meet the electrical demands of Nissan Altima vehicles. Featuring an internal fan, it maintains proper temperature during operation, reducing wear and extending service life. The clockwise rotation matches the original equipment specifications, ensuring seamless integration. This alternator comes with a 6-groove serpentine pulley, compatible with the vehicle’s belt system, and includes the pulley for convenience. The internal voltage regulator maintains consistent voltage output, protecting your vehicle’s electrical components. Rated at 110 amps, it supports the charging needs of the Nissan Altima’s electrical system without overloading.

Compatible Applications and Common Issues Addressed

• Replacement for failing or weak alternators in Nissan Altima models
• Resolves battery charging problems and electrical system malfunctions
• Eliminates dimming headlights and electrical accessory failures
• Addresses warning lights related to charging system faults
• Prevents vehicle stalling caused by insufficient electrical power

Installation Notes and Tips

When installing the WAI 13940N alternator, ensure the serpentine belt is properly aligned with the 6-groove pulley. Verify the clockwise rotation direction matches the vehicle’s original alternator. Check electrical connections for corrosion or damage before installation. It is recommended to test the charging system after installation to confirm proper operation.

Quality Assurance and Warranty Information

WAI alternators, including the 13940N model, are manufactured to meet industry standards and are part of the Hitachi family known for reliability. This alternator includes an internal regulator and fan designed for durability. Warranty coverage details should be confirmed at the point of purchase to ensure protection against manufacturing defects.