WAI 11657N Alternator

Reliable Alternator Replacement for Nissan Altima

The WAI 11657N alternator is designed to provide consistent electrical charging and starting performance for your Nissan Altima. Engineered with an internal fan and regulator, this alternator ensures efficient operation and durability under various driving conditions.

• 12-volt electrical system compatibility
• Internal fan type for effective cooling
• Clockwise (right) rotation direction
• Includes a 6-groove serpentine pulley
• Internal voltage regulator for stable output
• Decoupled clutch pulley to reduce belt wear and noise
• 110-amp amperage rating suitable for standard electrical loads
• Compatible with Mitsubishi alternator family design

Technical Details and Features

This WAI alternator, part number 11657N, is built to meet the specific electrical demands of the Nissan Altima. Featuring an internal fan, it maintains optimal operating temperatures by efficiently dissipating heat. The clockwise rotation direction matches the original equipment specifications, ensuring proper fit and function. The included serpentine pulley with six grooves supports reliable belt engagement, while the internal voltage regulator maintains consistent voltage output to protect your vehicle’s electrical components. Additionally, the decoupled clutch pulley helps minimize belt vibration and noise, contributing to smoother engine operation.

Compatible Vehicles and Applications

This alternator is compatible with Nissan Altima models requiring a 12-volt, 110-amp alternator with a clockwise rotation and serpentine belt system. It is designed to replace original equipment alternators within the Mitsubishi alternator family, making it a suitable replacement for maintaining your vehicle’s charging system.

• Restores proper battery charging and electrical system function
• Resolves dim or flickering headlights due to charging issues
• Eliminates battery warning light caused by alternator failure
• Addresses engine stalling related to insufficient electrical power
• Reduces belt noise and wear with decoupled clutch pulley design

Installation Notes and Tips

When installing the WAI 11657N alternator, ensure the serpentine belt is properly aligned with the 6-groove pulley. Verify the rotation direction matches the vehicle’s original alternator to avoid compatibility issues. It is recommended to inspect the belt tensioner and battery connections during installation to maintain optimal charging system performance.

Quality Assurance and Warranty

WAI alternators are manufactured to meet industry standards for durability and performance. This alternator includes an internal voltage regulator and clutch pulley to enhance reliability. Please refer to the product documentation or supplier for specific warranty details related to part number 11657N.