Part #: 7799N

WAI 7799N Alternator

6 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Ford, F-250 Super Duty and F-350 Super Duty
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Reliable Alternator for Ford F-250 and F-350 Super Duty

The WAI 7799N alternator is designed specifically for Ford F-250 Super Duty and F-350 Super Duty trucks. Engineered to meet the electrical demands of these heavy-duty vehicles, this alternator ensures consistent charging performance and reliable starting power.

  • 12-volt electrical system compatibility
  • Internal fan type for efficient cooling
  • Clockwise (right) rotation direction
  • Includes pulley with 8 grooves
  • Serpentine belt pulley type
  • Internal voltage regulator for stable output
  • 110 ampere rating suitable for heavy-duty applications
  • Designed for Ford vehicle family
  • Non-decoupled clutch pulley design

Detailed Product Description

The WAI 7799N alternator is built to provide dependable electrical charging and starting support for Ford F-250 Super Duty and F-350 Super Duty trucks. Featuring an internal fan, this alternator maintains optimal operating temperatures during extended use. The clockwise rotation and serpentine belt pulley with 8 grooves ensure compatibility with factory configurations. An internal voltage regulator maintains consistent voltage output, protecting your vehicle's electrical system. Rated at 110 amps, this alternator supports the high electrical loads typical of heavy-duty Ford trucks without the need for a decoupled or clutch pulley.

Common Applications and Issues Addressed

  • Replacement for worn or failing alternators in Ford F-250 Super Duty and F-350 Super Duty
  • Resolves battery charging problems and electrical system malfunctions
  • Addresses dimming headlights or electrical accessory failures
  • Eliminates starting difficulties related to insufficient alternator output
  • Prevents overcharging or undercharging with internal voltage regulation

Installation Notes and Tips

When installing the WAI 7799N alternator, ensure the serpentine belt is properly aligned with the 8-groove pulley. Verify the clockwise rotation direction matches the vehicle’s original alternator. Confirm electrical connections are secure and free of corrosion. It is recommended to test the charging system after installation to ensure proper function.

Quality Assurance and Warranty

WAI alternators are manufactured to meet OEM specifications for Ford vehicles, ensuring reliable performance and durability. The 7799N alternator undergoes rigorous testing to verify amperage output and voltage regulation. Please refer to WAI’s warranty policy for specific coverage details.

BrandWAI
Part Number7799N
1212
Fan TypeInternal
Rotation DirectionClockwise (right)
Pulley IncludedYes
FamilyFord
Pulley Groove Quantity8
Pulley Belt TypeSerpentine
Regulator TypeInternal
Decoupled Or Clutch PulleyNo
Amperage Rating110

This part fits 6 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2001FordF-250 Super Duty7.3LV8N/Aw/Ambulance Pkg, Auxiliary Alt
2001FordF-350 Super Duty7.3LV8N/Aw/Ambulance Pkg, Auxiliary Alt
2000FordF-250 Super Duty7.3LV8N/Aw/Ambulance Pkg, Auxiliary Alt
2000FordF-350 Super Duty7.3LV8N/Aw/Ambulance Pkg, Auxiliary Alt
1999FordF-250 Super Duty7.3LV8N/Aw/Ambulance Pkg, Auxiliary Alt
1999FordF-350 Super Duty7.3LV8N/Aw/Ambulance Pkg, Auxiliary Alt

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

4U2Z-10V346-CLRM7799DEF81U-10300-GAF81U-GAF81Z-10346-GAF81Z-10346-GARMF81Z-10V346-GARMF81Z-10V346-GBRM

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.