HomeWAI 13937N Alternator
Part #: 13937N

WAI 13937N Alternator

⚙️ 5 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Nissan, Sentra
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Reliable Alternator Replacement for Nissan Sentra

The WAI 13937N alternator is designed specifically for Nissan Sentra models, providing dependable electrical charging and starting performance. Engineered with an internal fan and regulator, this alternator ensures efficient operation and consistent power delivery.

Key Features of the WAI 13937N Alternator

  • 12-volt electrical system compatibility
  • Internal fan type for effective cooling
  • Clockwise (right) rotation direction
  • Includes pulley with 6 grooves
  • Serpentine belt pulley type
  • Internal voltage regulator for stable output
  • 80-amp amperage rating suitable for Nissan Sentra
  • Part of the Hitachi family of components

Detailed Product Description

The WAI 13937N alternator is engineered to meet the electrical demands of Nissan Sentra vehicles. Featuring an internal fan, it maintains optimal operating temperatures, reducing wear and extending alternator life. The clockwise rotation and included 6-groove serpentine pulley ensure compatibility with the Sentra’s engine setup. An internal voltage regulator provides consistent voltage output, protecting your vehicle’s electrical system from fluctuations. With an 80-amp rating, this alternator supports the charging needs of standard Nissan Sentra electrical components.

Common Applications and Issues Addressed

  • Replacement for failing or worn-out alternators in Nissan Sentra
  • Resolves battery charging problems and electrical system malfunctions
  • Eliminates dimming headlights and electrical accessory failures
  • Addresses issues with voltage irregularities and power loss
  • Prevents engine stalling caused by insufficient electrical supply

Installation Notes and Tips

When installing the WAI 13937N alternator, ensure the serpentine belt is properly aligned with the 6-groove pulley. Verify the rotation direction matches the vehicle’s engine rotation (clockwise). Since the alternator includes an internal regulator and pulley, no additional components are required for installation. It is recommended to check battery condition and electrical connections during replacement to ensure optimal performance.

Quality Assurance and Warranty

WAI alternators, including the 13937N model, are manufactured to meet industry standards for durability and performance. This alternator is part of the Hitachi family, known for reliable electrical components. While specific warranty details may vary, WAI products typically come with a limited warranty covering defects in materials and workmanship.

BrandWAI
Part Number13937N
1212
Fan TypeInternal
Rotation DirectionClockwise (right)
Pulley IncludedYes
FamilyHitachi
Pulley Groove Quantity6
Pulley Belt TypeSerpentine
Regulator TypeInternal
Decoupled Or Clutch PulleyNo
Amperage Rating80

This part fits 5 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2006NissanSentra1.8LL4N/AHitachi Unit 80 Amp
2005NissanSentra1.8LL4N/AHitachi Unit 80 Amp
2004NissanSentra1.8LL4N/AHitachi Unit 80 Amp
2003NissanSentra1.8LL4N/AHitachi Unit 80 Amp
2002NissanSentra1.8LL4N/AHitachi Unit 80 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:

1393723100-4Z40023100-4Z400R23100-4Z40BLR180-769LR180-769BLR180-769FLR180-769R

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