TYC 2-21073 Alternator
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TYC

TYC 2-21073 Alternator

Brand TYC 2-21073
Fan Position Internal
Oe Manufacturer Valeo
Power Generation (amps) 150
Pully Wheel Design Clutch pulley
Pully Wheel Grooves 6
Rotation Direction Cw
Fits Audi and Volkswagen · 48 vehicles

OE-style replacement. Built around the specified Valeo charging-system configuration.

150-amp output. Supports the electrical load of modern vehicle systems.

Clutch pulley design. Helps match the factory belt-drive setup.

Cross-references Remy 21073 and 06K 903 023 G for the same application. See all 2.

$241.65Free shipping
In stock · usually ships same day before 1pm CST
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Alternator Overview

This TYC alternator, part number 2-21073, is built for select Volkswagen and Audi applications that require a 150-amp charging unit with a clutch pulley. It is a fitment-specific replacement for vehicles using the Valeo-style configuration, including Audi TT Quattro and Volkswagen GTI applications.

Key Features

  • 150-amp output for stable charging performance.
  • Internal fan design for compact packaging.
  • Clutch pulley with 6 grooves for belt system compatibility.
  • Clockwise rotation to match the specified charging system layout.
  • OE manufacturer reference: Valeo.

Detailed Description

TYC 2-21073 is an alternator engineered around the original equipment configuration used in select Audi and Volkswagen models. The internal fan, clutch pulley, 6-groove pulley design, and clockwise rotation help match the factory charging system setup, while the 150-amp rating supports the electrical demands of modern vehicle systems. This part number 2-21073 is listed for applications such as Audi A3, Audi A3 Quattro, Audi TT Quattro, Audi TT RS Quattro, Volkswagen Beetle, Volkswagen Golf R, Volkswagen GTI, Volkswagen Jetta, and Volkswagen Passat.

This part cross-references Remy 21073 for the same application.

What It Is Used For

  • Replacing a charging unit with weak or inconsistent output.
  • Addressing battery warning lights related to charging system faults.
  • Correcting belt drive issues tied to pulley mismatch or wear.
  • Restoring proper electrical supply for vehicle accessories and controls.

Installation Notes and Tips

Verify the OE manufacturer reference, pulley style, groove count, rotation direction, and amperage before ordering. Fitment is application-specific for Audi and Volkswagen models, including 2015-2021 Volkswagen GTI, 2016-2022 Audi TT Quattro, and 2012-2017 Volkswagen Passat. Confirm the vehicle’s charging system configuration against part number 2-21073 to ensure proper match.

Quality Assurance

This alternator is built to match the specified Valeo-style OE configuration for the listed applications. TYC part number 2-21073 is intended for direct replacement use where the original charging system specifications align.

Related reading

This part fits 48 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelBody TypeLitersCylindersFuel TypeNotes
2022AudiTT QuattroBaseConvertible2.0LL4—Valeo Brand
2022AudiTT RS QuattroHeritage EditionCoupe2.5LL5—Valeo Brand
2021AudiTT QuattroBaseConvertible2.0LL4—Valeo Brand
2021AudiTT RS QuattroBaseCoupe2.5LL5—Valeo Brand
2021VolkswagenGTISEHatchback2.0LL4—Valeo Brand
2020AudiTT QuattroBaseConvertible2.0LL4—Valeo Brand
2020AudiTT RS QuattroBaseCoupe2.5LL5—Valeo Brand
2020VolkswagenGTISHatchback2.0LL4—Valeo Brand
2019AudiA3PrestigeConvertible2.0LL4—Valeo Brand
2019AudiA3 QuattroPremium PlusConvertible2.0LL4—Valeo Brand
2019AudiTT QuattroBaseConvertible2.0LL4—Valeo Brand
2019AudiTT RS QuattroBaseCoupe2.5LL5—Valeo Brand
2019VolkswagenBeetleWolfsburg EditionHatchback2.0LL4——
2019VolkswagenGolf RBaseHatchback2.0LL4—Valeo Brand
2019VolkswagenGTIRabbit EditionHatchback2.0LL4—Valeo Brand
2018AudiA3PremiumConvertible2.0LL4—Valeo Brand
2018AudiA3 QuattroPremiumConvertible2.0LL4—Valeo Brand
2018AudiTT QuattroBaseConvertible2.0LL4—Valeo Brand
2018AudiTT RS QuattroBaseCoupe2.5LL5—Valeo Brand
2018VolkswagenBeetleDuneHatchback2.0LL4——
2018VolkswagenGolf RBaseHatchback2.0LL4—Valeo Brand
2018VolkswagenGTISHatchback2.0LL4—Valeo Brand
2018VolkswagenJettaSELSedan1.8LL4——
2017AudiA3Premium PlusConvertible2.0LL4—Valeo Brand
2017AudiA3 QuattroPremiumConvertible2.0LL4—Valeo Brand
2017AudiTT QuattroBaseConvertible2.0LL4—Valeo Brand
2017VolkswagenBeetleClassicConvertible1.8LL4——
2017VolkswagenGolf RBaseHatchback2.0LL4—Valeo Brand
2017VolkswagenGTISHatchback2.0LL4—Valeo Brand
2017VolkswagenJettaSportSedan1.8LL4——
2017VolkswagenPassatR-LineSedan1.8LL4—Valeo Brand
2016AudiA3PremiumConvertible1.8LL4—Valeo Brand
2016AudiA3 QuattroPremium PlusConvertible2.0LL4—Valeo Brand
2016AudiTT QuattroBaseConvertible2.0LL4—Valeo Brand
2016VolkswagenBeetleDenimConvertible1.8LL4——
2016VolkswagenGolf RBaseHatchback2.0LL4—Valeo Brand
2016VolkswagenGTIAutobahnHatchback2.0LL4—Valeo Brand
2016VolkswagenJettaSEL PremiumSedan1.8LL4——
2016VolkswagenPassatSEL PremiumSedan1.8LL4—Valeo Brand
2015AudiA3PremiumConvertible1.8LL4—Valeo Brand
2015AudiA3 QuattroPremium PlusConvertible2.0LL4—Valeo Brand
2015VolkswagenGolf RBaseHatchback2.0LL4—Valeo Brand
2015VolkswagenGTISHatchback2.0LL4—Valeo Brand
2015VolkswagenJettaComfortlineSedan1.8LL4——
2015VolkswagenPassatTrendline TDISedan2.0LL4DIESELValeo Brand
2014VolkswagenPassatHighline TDISedan2.0LL4DIESELValeo Brand
2013VolkswagenPassatTrendline TDISedan2.0LL4DIESELValeo Brand
2012VolkswagenPassatHighline TDISedan2.0LL4DIESELValeo Brand
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Remy — 2107306K 903 023 G