Part #: 2-21017

TYC 2-21017 Alternator

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⚙️ 26 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Toyota, Tacoma
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Reliable Alternator for Toyota Tacoma Vehicles

The TYC 2-21017 alternator is designed specifically for Toyota Tacoma models, providing consistent 100 amp power generation to support your vehicle's electrical system. Engineered with a decoupler pulley and 7 grooves, this alternator ensures smooth operation and efficient power delivery.

  • Power output: 100 amps for stable electrical performance
  • Decoupler pulley design reduces vibration and noise
  • 7-groove pulley wheel for secure belt engagement
  • Clockwise rotation direction compatible with Toyota Tacoma
  • OE manufacturer code: Nd

Technical Details and Features

The TYC 2-21017 alternator features a decoupler pulley that helps minimize belt tension fluctuations and reduces wear on the belt drive system. Its 7-groove pulley wheel design ensures proper belt alignment and grip, which is critical for maintaining consistent alternator function. With a clockwise rotation direction, this alternator matches the original equipment specifications for Toyota Tacoma vehicles, ensuring compatibility and reliable performance.

Compatible Toyota Tacoma Models

This alternator is compatible with various Toyota Tacoma models requiring a 100 amp alternator with a decoupler pulley and 7-groove design. The part number 2-21017 is a direct replacement for factory-installed alternators, making it suitable for maintenance or repair of your Tacoma's charging system.

Common Issues Addressed by This Alternator

  • Battery not charging properly or draining quickly
  • Dim or flickering headlights and electrical accessories
  • Unusual noises from the alternator pulley or belt area
  • Warning lights related to charging system on the dashboard
  • Intermittent electrical failures or vehicle stalling

Installation Notes and Tips

When installing the TYC 2-21017 alternator, ensure the belt is properly aligned with the 7-groove pulley to prevent premature wear. Verify the clockwise rotation direction matches your vehicle’s original alternator. It is recommended to inspect the battery and wiring connections during installation to ensure optimal charging system performance.

Quality Assurance and Warranty

TYC alternators are manufactured to meet or exceed OEM standards, providing reliable performance for Toyota Tacoma vehicles. While specific warranty details for part number 2-21017 should be confirmed at the point of purchase, TYC products typically include a limited warranty covering defects in materials and workmanship.

BrandTYC
Part Number2-21017
Oe ManufacturerND
Power Generation (amps)100A
Pully Wheel DesignDecoupler pulley
Pully Wheel Grooves7
Rotation DirectionCW

This part fits 26 vehicles. Search below:

YearMakeModelSubmodelBody TypeLitersCylindersPositionNotes
2023ToyotaTacomaSR5Crew Cab Pickup2.7LL4N/A
2022ToyotaTacomaSRCrew Cab Pickup2.7LL4N/A
2021ToyotaTacomaSRCrew Cab Pickup2.7LL4N/A
2021ToyotaTacomaSR5Crew Cab Pickup2.7LL4N/A
2021ToyotaTacomaSR5Extended Cab Pickup2.7LL4N/A
2021ToyotaTacomaSRExtended Cab Pickup2.7LL4N/A
2020ToyotaTacomaSR5Crew Cab Pickup2.7LL4N/A
2020ToyotaTacomaSRCrew Cab Pickup2.7LL4N/A
2020ToyotaTacomaSR5Extended Cab Pickup2.7LL4N/A
2020ToyotaTacomaSRExtended Cab Pickup2.7LL4N/A
2019ToyotaTacomaSR5Crew Cab Pickup2.7LL4N/A
2019ToyotaTacomaSR5Extended Cab Pickup2.7LL4N/A
2019ToyotaTacomaSRCrew Cab Pickup2.7LL4N/A
2019ToyotaTacomaSRExtended Cab Pickup2.7LL4N/A
2018ToyotaTacomaSR5Extended Cab Pickup2.7LL4N/A
2018ToyotaTacomaSRExtended Cab Pickup2.7LL4N/A
2018ToyotaTacomaSRCrew Cab Pickup2.7LL4N/A
2018ToyotaTacomaSR5Crew Cab Pickup2.7LL4N/A
2017ToyotaTacomaSR5Crew Cab Pickup2.7LL4N/A
2017ToyotaTacomaSRExtended Cab Pickup2.7LL4N/A
2017ToyotaTacomaSR5Extended Cab Pickup2.7LL4N/A
2017ToyotaTacomaSRCrew Cab Pickup2.7LL4N/A
2016ToyotaTacomaSR5Crew Cab Pickup2.7LL4N/A
2016ToyotaTacomaSR5Extended Cab Pickup2.7LL4N/A
2016ToyotaTacomaSRCrew Cab Pickup2.7LL4N/A
2016ToyotaTacomaSRExtended Cab Pickup2.7LL4N/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:

21017

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