Part #: 13878N

WAI 13878N Alternator

30 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Fitment: Pontiac and Toyota, Celica, Corolla, Matrix, MR2 Spyder, and Vibe
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Reliable Alternator for Pontiac and Toyota Vehicles

The WAI 13878N alternator is designed to provide consistent electrical charging and starting performance for select Pontiac and Toyota models. Engineered with an internal fan and regulator, this alternator supports efficient operation and durability in your vehicle's electrical system.

  • 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
  • 80 ampere rating suitable for standard charging needs
  • Compatible with Denso family components

Technical Details and Features

This WAI alternator (part number 13878N) features an internal fan that helps maintain optimal operating temperatures, reducing the risk of overheating during extended use. The clockwise rotation matches the original equipment specifications for vehicles such as the Pontiac Vibe and Toyota Corolla. The included pulley has six 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 components. Rated at 80 amps, it supports the electrical demands of your vehicle without the need for a decoupled or clutch pulley.

Compatible Vehicles and Applications

This alternator is compatible with the following makes and models:

  • Pontiac Vibe
  • Toyota Celica
  • Toyota Corolla
  • Toyota Matrix
  • Toyota MR2 Spyder

It is designed to replace original Denso alternators in these vehicles, ensuring proper fit and function.

Common Issues Addressed by This Alternator

  • Failure to charge the battery properly
  • Intermittent electrical system failures
  • Dim or flickering headlights and dashboard lights
  • Battery warning light illumination on the dashboard
  • Unusual noises from the alternator pulley or belt area

Installation Notes and Tips

When installing the WAI 13878N 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 includes an internal voltage regulator, no external regulator adjustments are necessary. It is recommended to inspect the battery and electrical connections during installation to ensure optimal performance.

Quality Assurance and Warranty

WAI alternators are manufactured to meet industry standards for durability and performance. This alternator is part of the Denso family, known for reliable electrical components. While specific warranty details are not provided here, WAI products typically come with a limited warranty covering defects in materials and workmanship. Consult your supplier for exact warranty terms.

BrandWAI
Part Number13878N
1212
Fan TypeInternal
Rotation DirectionClockwise (right)
Pulley IncludedYes
FamilyDenso
Pulley Groove Quantity6
Pulley Belt TypeSerpentine
Regulator TypeInternal
Decoupled Or Clutch PulleyNo
Amperage Rating80

This part fits 30 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008PontiacVibeN/A
2008ToyotaCorollaN/AMfd in Japan, Mfd in USA
2008ToyotaMatrixN/A
2007PontiacVibeN/A
2007ToyotaCorollaN/AMfd in Japan, Mfd in USA
2007ToyotaMatrixN/A
2006PontiacVibe1.8LL4N/A
2006ToyotaCorolla1.8LL4N/AMfd in Japan, Mfd in USA
2006ToyotaMatrix1.8LL4N/A
2005PontiacVibe1.8LL4N/A
2005ToyotaCelica1.8LL4N/A
2005ToyotaCorolla1.8LL4N/AMfd in Japan, Mfd in USA
2005ToyotaMatrix1.8LL4N/A
2005ToyotaMR2 SpyderN/A
2004PontiacVibe1.8LL4N/A
2004ToyotaCelica1.8LL4N/A
2004ToyotaCorollaN/AMfd in Japan, Mfd in USA
2004ToyotaMatrix1.8LL4N/A
2004ToyotaMR2 SpyderN/A
2003PontiacVibe1.8LL4N/A
2003ToyotaCelica1.8LL4N/A
2003ToyotaCorollaN/AMfd in Japan, Mfd in USA
2003ToyotaMatrix1.8LL4N/A
2003ToyotaMR2 SpyderN/A
2002ToyotaCelica1.8LL4N/A
2002ToyotaMR2 SpyderN/A
2001ToyotaCelica1.8LL4N/A
2001ToyotaMR2 SpyderN/A
2000ToyotaCelica1.8LL4N/A
2000ToyotaMR2 SpyderN/A

* 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:

102211-1900102211-1910102211-1920102211-2020102211-2180102211-2290102211-2340102211-2421102211-2610102211-5360102211-5640102211-6180138782298427060-0D11027060-0D110-8427060-2202027060-2203027060-2204027060-22040-8427060-2206027060-2210027060-2213027060-2214027060-2216027060-2218027060-22210270602203084889694809662219-261

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