Part #: 13876N

WAI 13876N Alternator

⚙️ 12 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Jeep, TJ and Wrangler
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Reliable Alternator for Jeep TJ and Wrangler Models

The WAI 13876N alternator is designed specifically for Jeep TJ and Wrangler vehicles, providing consistent electrical charging performance. Engineered with a 12-volt system and a 117-amp rating, this alternator supports your vehicle's electrical demands efficiently.

  • 12-volt electrical system compatibility
  • Internal fan type for effective cooling
  • Clockwise (right) rotation direction
  • Includes a 6-groove serpentine pulley
  • External regulator type for stable voltage control
  • Compatible with Denso family alternators
  • Pulley included for direct replacement
  • Not equipped with a decoupled or clutch pulley

Technical Details and Features

The WAI 13876N alternator features an internal fan that helps maintain optimal operating temperatures during vehicle operation. Its clockwise rotation matches the original equipment specifications for Jeep TJ and Wrangler models, ensuring proper fit and function. The included pulley has six grooves designed for serpentine belts, which are common in these Jeep vehicles. This alternator uses an external regulator type, providing reliable voltage regulation and consistent electrical output. It belongs to the Denso family, known for durable and compatible alternator components.

Compatible Applications and Use Cases

This alternator is compatible with Jeep TJ and Wrangler models requiring a 12-volt, 117-amp alternator with a clockwise rotation and serpentine belt pulley system. It is suitable for addressing the following issues:

  • Intermittent or no battery charging
  • Dim or flickering vehicle lights
  • Electrical system warning lights on the dashboard
  • Battery drain or failure to hold charge
  • Unusual noises from the alternator pulley area

Installation Notes and Tips

When installing the WAI 13876N alternator, ensure the serpentine belt is properly aligned with the 6-groove pulley. Verify the rotation direction matches the original alternator to avoid mechanical issues. Since this alternator uses an external voltage regulator, confirm the regulator connections are secure and compatible with your Jeep TJ or Wrangler electrical system. Proper torque specifications should be followed to prevent damage during installation.

Quality Assurance and Warranty Information

WAI alternators are manufactured to meet or exceed OEM standards for fit, form, and function. The 13876N part number undergoes rigorous testing to ensure reliable performance in demanding automotive environments. Please refer to WAI's warranty policy for specific coverage details on this alternator.

BrandWAI
Part Number13876N
1212
Fan TypeInternal
Rotation DirectionClockwise (right)
Pulley IncludedYes
FamilyDenso
Pulley Groove Quantity6
Pulley Belt TypeSerpentine
Regulator TypeExternal
Decoupled Or Clutch PulleyNo
Amperage Rating117

This part fits 12 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006JeepTJ4.0LL6N/AStd, 117 Amp
2006JeepWrangler4.0LL6N/AStd, 117 Amp
2005JeepTJ4.0LL6N/AStd, 117 Amp
2005JeepWrangler4.0LL6N/AStd, 117 Amp
2004JeepTJ4.0LL6N/AStd, 117 Amp
2004JeepWrangler4.0LL6N/AStd, 117 Amp
2003JeepTJ4.0LL6N/AStd, 117 Amp
2003JeepWrangler4.0LL6N/AStd, 117 Amp
2002JeepTJ4.0LL6N/AStd., 81 Amp to Opt., 117 Amp, Supplied as 117 Amp
2002JeepWrangler4.0LL6N/AStd., 81 Amp to Opt., 117 Amp, Supplied as 117 Amp
2001JeepTJ4.0LL6N/AStd., 81 Amp to Opt., 117 Amp, Supplied as 117 Amp
2001JeepWrangler4.0LL6N/AStd., 81 Amp to Opt., 117 Amp, Supplied as 117 Amp

* 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:

121000-3810121000-3820121000-3821138761390756041565AB56041864AA56041864AB56041864AB1

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