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TYC 2-21248 AlternatorOE Quality 60-Day Returns
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Part #: 2-21248

TYC 2-21248 Alternator

⚙️ 57 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$261.71Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Highlander and Sienna
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST
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Reliable Alternator Replacement for Toyota Highlander and Sienna

The TYC 2-21248 alternator is designed to restore efficient power generation in your Toyota Highlander or Sienna. Engineered to meet OE specifications, this alternator ensures consistent electrical performance and reliable starting power.

  • OE Manufacturer: Denso
  • Power Generation: 220 amps
  • Pulley Wheel Design: Regular with 6 grooves
  • Rotation Direction: Clockwise (CW)
  • Compatible with Toyota Highlander and Sienna models

Technical Details and Performance

This TYC alternator (part number 2-21248) features a 220 amp power output, suitable for vehicles requiring high electrical demand. The regular pulley wheel with 6 grooves supports proper belt alignment and tension, contributing to smooth operation. Its clockwise rotation matches the original equipment specifications, ensuring compatibility and optimal performance in your Toyota Highlander or Sienna.

Applications and Common Issues Addressed

  • Restores charging system functionality in Toyota Highlander and Sienna
  • Resolves battery drain caused by faulty alternator output
  • Eliminates dimming headlights and electrical accessory malfunctions
  • Prevents engine stalling related to charging system failure
  • Replaces worn or damaged alternator components to maintain vehicle reliability

Installation Notes and Tips

When installing the TYC 2-21248 alternator, verify the pulley groove count and rotation direction to ensure proper fitment. Disconnect the battery before removal and installation to avoid electrical shorts. Use appropriate tools to maintain belt tension and alignment during reassembly. Consult your vehicle’s service manual for torque specifications and safety precautions.

Quality Assurance and Warranty

TYC alternators are manufactured to meet or exceed OEM standards, with components sourced from reputable suppliers such as Denso. This part undergoes rigorous testing to ensure durability and consistent performance. Please refer to TYC’s warranty policy for specific coverage details related to the 2-21248 alternator.

BrandTYC
Part Number2-21248
Oe ManufacturerDenso
Power Generation (amps)220a
Pully Wheel DesignRegular
Pully Wheel Grooves6
Rotation DirectionCw

This part fits 57 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2022ToyotaHighlanderLSport Utility3.5LV6N/A
2021ToyotaHighlanderXLESport Utility3.5LV6N/A
2021ToyotaHighlanderLimitedSport Utility3.5LV6N/A
2021ToyotaHighlanderLESport Utility3.5LV6N/A
2021ToyotaHighlanderPlatinumSport Utility3.5LV6N/A
2021ToyotaHighlanderXSESport Utility3.5LV6N/A
2021ToyotaHighlanderLSport Utility3.5LV6N/A
2020ToyotaHighlanderLESport Utility3.5LV6N/A
2020ToyotaHighlanderPlatinumSport Utility3.5LV6N/A
2020ToyotaHighlanderLSport Utility3.5LV6N/A
2020ToyotaHighlanderXLESport Utility3.5LV6N/A
2020ToyotaHighlanderLimitedSport Utility3.5LV6N/A
2020ToyotaSiennaXLE PremiumMini Passenger Van3.5LV6N/A
2020ToyotaSiennaLMini Passenger Van3.5LV6N/A
2020ToyotaSiennaSE PremiumMini Passenger Van3.5LV6N/A
2020ToyotaSiennaXLEMini Passenger Van3.5LV6N/A
2020ToyotaSiennaLimitedMini Passenger Van3.5LV6N/A
2020ToyotaSiennaLEMini Passenger Van3.5LV6N/A
2020ToyotaSiennaLimited PremiumMini Passenger Van3.5LV6N/A
2020ToyotaSiennaSEMini Passenger Van3.5LV6N/A
2019ToyotaHighlanderSESport Utility3.5LV6N/A
2019ToyotaHighlanderLESport Utility3.5LV6N/A
2019ToyotaHighlanderLE PlusSport Utility3.5LV6N/A
2019ToyotaHighlanderLimitedSport Utility3.5LV6N/A
2019ToyotaHighlanderLimited PlatinumSport Utility3.5LV6N/A
2019ToyotaHighlanderXLESport Utility3.5LV6N/A
2019ToyotaSiennaLimited PremiumMini Passenger Van3.5LV6N/A
2019ToyotaSiennaXLEMini Passenger Van3.5LV6N/A
2019ToyotaSiennaLMini Passenger Van3.5LV6N/A
2019ToyotaSiennaXLE PremiumMini Passenger Van3.5LV6N/A
2019ToyotaSiennaLEMini Passenger Van3.5LV6N/A
2019ToyotaSiennaLimitedMini Passenger Van3.5LV6N/A
2019ToyotaSiennaSE PremiumMini Passenger Van3.5LV6N/A
2019ToyotaSiennaSEMini Passenger Van3.5LV6N/A
2018ToyotaHighlanderSESport Utility3.5LV6N/A
2018ToyotaHighlanderLESport Utility3.5LV6N/A
2018ToyotaHighlanderLimitedSport Utility3.5LV6N/A
2018ToyotaHighlanderLE PlusSport Utility3.5LV6N/A
2018ToyotaHighlanderXLESport Utility3.5LV6N/A
2018ToyotaSiennaLimitedMini Passenger Van3.5LV6N/A
2018ToyotaSiennaXLE PremiumMini Passenger Van3.5LV6N/A
2018ToyotaSiennaLEMini Passenger Van3.5LV6N/A
2018ToyotaSiennaLimited PremiumMini Passenger Van3.5LV6N/A
2018ToyotaSiennaSE PremiumMini Passenger Van3.5LV6N/A
2018ToyotaSiennaXLEMini Passenger Van3.5LV6N/A
2018ToyotaSiennaLMini Passenger Van3.5LV6N/A
2018ToyotaSiennaSEMini Passenger Van3.5LV6N/A
2017ToyotaHighlanderXLESport Utility3.5LV6N/A
2017ToyotaHighlanderLESport Utility3.5LV6N/A
2017ToyotaHighlanderSESport Utility3.5LV6N/A
2017ToyotaHighlanderLimitedSport Utility3.5LV6N/A
2017ToyotaHighlanderLE PlusSport Utility3.5LV6N/A
2017ToyotaSiennaLMini Passenger Van3.5LV6N/A
2017ToyotaSiennaLEMini Passenger Van3.5LV6N/A
2017ToyotaSiennaLimitedMini Passenger Van3.5LV6N/A
2017ToyotaSiennaSEMini Passenger Van3.5LV6N/A
2017ToyotaSiennaXLEMini Passenger Van3.5LV6N/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:

AL3403X

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

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