WAI 7790N Alternator

Reliable Alternator for Ford E-Series and F-Series Vehicles

The WAI 7790N alternator is designed to provide consistent electrical charging and starting power for a range of Ford trucks and vans. Engineered with an internal fan and regulator, this alternator supports the demanding electrical needs of Ford E-150, E-250, E-350, and F-150 through F-350 Super Duty models.

• 12-volt electrical system compatibility
• Internal fan type for efficient cooling
• Clockwise (right) rotation direction
• Includes pulley with 8 grooves for serpentine belt
• Internal voltage regulator for stable output
• 95 ampere rating suitable for heavy-duty applications
• Compatible with multiple Ford E-Series and F-Series models

Technical Details and Features

The WAI 7790N alternator features an internal fan that helps maintain optimal operating temperatures, enhancing durability and performance. Its clockwise rotation matches the original equipment specifications for Ford E-150, E-250, E-350, and F-150 to F-350 Super Duty vehicles. The included pulley has 8 grooves designed for serpentine belts, ensuring proper belt alignment and tension. With an internal voltage regulator, this alternator maintains consistent voltage output, protecting your vehicle's electrical system. Rated at 95 amps, it supports the electrical demands of heavy-duty Ford trucks and vans without the need for a decoupled or clutch pulley.

Compatible Ford Models and Applications

This alternator is compatible with a wide range of Ford vehicles, including:

• Ford E-150, E-150 Club Wagon, and E-150 Econoline variants
• Ford E-250 and E-250 Econoline
• Ford E-350, E-350 Club Wagon, E-350 Econoline, and E-350 Super Duty
• Ford F-150, F-250, F-250 Super Duty, and F-350 Super Duty

Common Issues Addressed by the WAI 7790N Alternator

• Intermittent or complete loss of electrical charging
• Dimming or flickering vehicle lights
• Battery not maintaining charge during operation
• Failure to start due to insufficient electrical power
• Overheating alternator caused by inefficient cooling

Installation Notes and Tips

When installing the WAI 7790N alternator, ensure the serpentine belt is properly aligned with the 8-groove pulley to prevent premature wear. Verify the rotation direction matches the original alternator to avoid compatibility issues. Since this alternator includes an internal voltage regulator and pulley, no additional components are required for installation. Always disconnect the battery before beginning installation to prevent electrical shorts.

Quality Assurance and Warranty

WAI alternators are manufactured to meet or exceed OEM specifications for Ford vehicles. The 7790N model undergoes rigorous testing to ensure reliable performance and durability. While specific warranty details are not provided here, WAI products typically come with a limited warranty covering defects in materials and workmanship. Consult the product documentation or supplier for exact warranty terms.