SKU: 3048464012

Alternator 12V 140A for VW Golf 5/6, Jetta 5/6 & Audi A3 - ALT1242A

$2245.05 $2494.50
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Description

Alternator 12V 140A for VW Golf 5/6, Jetta 5/6 & Audi A3 - ALT1242AVehicle Fitment & Part Details This alternator (ALT1242A, OE 03L 903 023 F) fits a broad range of VAG platform vehicles including VW Golf 5 6 7, Jetta 4 5 6, Polo, Passat, Tiguan, Touran, Caddy, Transporter T5, Crafter, CC, Sharan, Scirocco, Beetle, Polo Vivo, and Audi A1, A3, A4, Q3, TT, S3, and RS3. The alternator generates electrical power and charges the battery while the engine runs. Confirm compatibility by matching the listed fitment details,

Vehicle Fitment & Part Details

This alternator (ALT1242A, OE 03L-903-023-F) fits a broad range of VAG platform vehicles including VW Golf 5/6/7, Jetta 4/5/6, Polo, Passat, Tiguan, Touran, Caddy, Transporter T5, Crafter, CC, Sharan, Scirocco, Beetle, Polo Vivo, and Audi A1, A3, A4, Q3, TT, S3, and RS3. The alternator generates electrical power and charges the battery while the engine runs. Confirm compatibility by matching the listed fitment details, OEM reference numbers, and VIN/engine/chassis information where variants exist.

Key Details

SKU
ALT1242A
Component
Alternator

OEM Reference Numbers

  • VAG: 03L-903-023-F
  • 03L-903-023F
  • 03L903023F
  • 03L-903-023-FX
  • 03L903023FX
  • 06F-903-023A
  • 06F903023A
  • 06F-903-023AX
  • 06F903023AX
  • 06F-903-023-C
  • 06F-903-023C
  • Mercedes-Benz: HVAG0001540102
  • HVW 000 154 01 02

Product Specifications

Specification Value
Voltage 12 V
Charging Current 140 A
For Manufacturer (Regulator Type) Valeo
Number of Ribs 6
Pulley With freewheel (overrunning) belt pulley

Vehicle Fitment

Includes 73 supplied applications.

View Full Vehicle Fitment (73 applications)
Make Model Engine Code Power Years
Audi A1 1.2 TFSi CBZA 71 kW 2011-
Audi A1 1.6 TDi CAYB 79.5 kW 2011-
Audi A1 1.6 TDi CAYC 79.5 kW 2010-2015
Audi A1 1.2 TFSi Sportback CBZA 71 kW 2012-
Audi A1 1.6 TDi Sportback CAYC 79.5 kW 2011-
Audi A3 1.6 TDi CAYC 79.5 kW 2010-2013
Audi A3 1.9 TDi BLS, BXE, BK 79.5 kW 2008-2010
Audi A3 2.0 FSi AXW, BMB 82.5 kW 2004-2005
Audi A3 2.0 TDi BKD 81 kW 2003-2012
Audi A3 2.0 TDi CBAB, CFFB 81 kW 2003-2012
Audi A3 2.0 TDi BMM 81 kW 2005-2012
Audi A3 2.0 TFSi AXX, CAWB 82.5 kW 2005-2013
Audi A3 1.6 TDi Sportback CAYC 79.5 kW 2010-2013
Audi A3 1.9 TDi Sportback BLS, BXE, BK 79.5 kW 2008-2010
Audi A3 2.0 FSi Sportback BLX, BLY, BV 82.5 kW 2004-2005
Audi A3 2.0 TDi Sportback BKD 81 kW 2004-2013
Audi A3 2.0 TDi Sportback CBAB, CFFB 81 kW 2004-2012
Audi A3 2.0 TFSi Sportback AXX, BWA, CA 82.5 kW 2004-2013
Audi A3 3.2 V6 Sportback BDB, BUB, BM 84 kW 2004-2009
Audi A3 RS3 2.5 TFSi Quattro CEPA 82.5 kW 2011-2013
Audi A4 1.9 TDi AVF 79.5 kW 2001-2005
Audi Q3 2.0 TDi CFFB, CLJA 81 kW 2012-
Audi Q3 2.0 TDi Quattro CFGC, CLLB 81 kW 2012-
Audi S3 2.0 TFSi BZC 82.5 kW 2007-2012
Audi TT 2.0 TFSI BWA, BPY, CC 82.5 kW 2007-2010
Audi TT 2.0 TTS Quattro CDLA, CDMA 82.5 kW 2008-2014
Audi TT 3.2 V6 BHE 84 kW 2004-2006
VW Beetle 1.2 TSi CBZB 71 kW 2011-
VW Beetle 1.2 TSi CYVD 71 kW 2014-
VW CC 2.0 TDi CFGB, CLLA 81 kW 2011-2013
VW CC 2.0 TDi CFGC 81 kW 2013-2016
VW Golf 3 2.8 VR6 AAA 81 kW 1993-1996
VW Golf 5 1.6 BGU, BSF 81 kW 2004-2008
VW Golf 5 1.9 TDi BKC, BXE 79.5 kW 2004-2008
VW Golf 5 2.0 Comfortline BEV, BHY 82.5 kW 2005-2009
VW Golf 5 2.0 FSi AXW 82.5 kW 2004-2008
VW Golf 5 2.0 FSi BLY 82.5 kW 2004-2008
VW Golf 5 2.0 GTi AXX, BWA, CA 82.5 kW 2004-2008
VW Golf 5 2.0 TDi BKD 81 kW 2004-2008
VW Golf 6 1.6 TDi Comfortline CAYC 79.5 kW 2009-2013
VW Golf 6 1.6 Trendline BSE, BSF 81 kW 2009-2013
VW Golf 6 2.0 TSi GTi CDLG 82.5 kW 2012-2013
VW Golf 6 2.0 TDi CBAB 81 kW 2009-2013
VW Golf 6 2.0 TDi CFFB, CJAA 81 kW 2009-2013
VW Golf 6 2.0 TSi R 4Motion CDLC, CRZA 82.5 kW 2011-2013
VW Golf 7 2.0 TDi CRVA, CYKB 81 kW 2013-
VW Golf 7 2.0 TDi CRLB/MB/BC 81 kW 2013-
VW Jetta 4 1.6i AKL 81 kW 1999-2004
VW Jetta 4 2.0i APK, AZJ, AQ 82.5 kW 1999-2005
VW Jetta 4 2.3 V5 AGZ 81 kW 1999-2001
VW Jetta 4 2.3 V5 AQN 81 kW 2002-2005
VW Jetta 5 1.6 BGU, BSE, BS 81 kW 2006-2010
VW Jetta 5 1.6 TDi CAYC 79.5 kW 2009-2010
VW Jetta 5 1.9 TDi BKC/BLS 79.5 kW 2006-2010
VW Jetta 5 2.0 FSi BLR, BVY, BV 82.5 kW 2006-2010
VW Jetta 5 2.0 TFSi BWA, BPY, CA 82.5 kW 2006-2010
VW Jetta 5 2.0 TDi BMN, CEGA 81 kW 2006-2010
VW Jetta 5 2.0 TDi BKD, CBDB 81 kW 2006-2010
VW Jetta 6 1.2 TSi CBZB 71 kW 2011-
VW Jetta 6 1.6 TDi CAYC, CAYX 79.5 kW 2011-2015
VW Jetta 6 2.0 TDi CFFB, CFHC 81 kW 2011-
VW Passat 1.9 TDi BKC/BLS 79.5 kW 2005-2009
VW Passat 2.0 FSi BLR, BLY, BV 82.5 kW 2005-2008
VW Passat 2.0 TFSi AXX, BWA, BP 82.5 kW 2005-2010
VW Passat 2.0 TDi BKP, CBAB 81 kW 2005-2011
VW Passat 2.0 TDi CBDC 81 kW 2009-2011
VW Passat 3.2 V6 AXZ 84 kW 2005-2010
VW Polo 1.6i Sedan BTS 76.5 kW 2006-2010
VW Polo 1.6i Sedan BUD 76.5 kW 2006-2010
VW Polo 1.6 TDi CAYB 79.5 kW 2009-2011
VW Polo 1.6 TDi CAYC, CLNA 79.5 kW 2010-
VW Polo 1.9 TDi ASZ 79.5 kW 2006-2010
VW Polo Vivo 1.6i 5DR CLSA 76.5 kW 2010-2017
VW Polo Vivo 1.6i Maxx CLSA 76.5 kW 2013-
VW Polo Vivo 1.6i 5DR CLSA 76.5 kW 2018-
VW Scirocco 2.0 TSi R CDLC 82.5 kW 2011-2013
VW Sharan 1.8T AJH, AWC 81 kW 1999-2002
VW Sharan 1.8T AWC 81 kW 2002-2006
VW Sharan 1.9 TDi ASZ 79.5 kW 2002-2006
VW Sharan 2.8 V6 AYL 81 kW 2001-2006
VW Tiguan 2.0 TDi CBAB, CFFB 81 kW 2008-2010
VW Tiguan 2.0 TDi CFFD 81 kW 2011-2016
VW Touran 1.2 TSi CBZB 71 kW 2011-2016
VW Touran 1.6 BGU, BSF 81 kW 2007-2011
VW Touran 1.9 TDi AVQ 79.5 kW 2004-2011
VW Touran 1.9 TDi BKC, BLS, BX 79.5 kW 2004-2011
VW Touran 2.0 FSi AXW 82.5 kW 2004-2007
VW Touran 2.0 TDi BMM 81 kW 2005-2010
VW Touran 2.0 TDi CLCA 81 kW 2011-2016
VW Caddy 1.6i BGU, BSF 81 kW 2004-2015
VW Caddy 1.9 TDI BJB, BLS 79.5 kW 2004-2010
VW Caddy 2.0 SDI BDJ, BST 81 kW 2004-2010
VW Caddy 2.0 TDI CFHF, CLCA 81 kW 2010-2016
VW Caddy 2.0 TDI DSG CFHC 81 kW 2011-2015
VW Crafter 35 2.5 TDi SWB BJK, CEBB 81 kW 2006-
VW Crafter 35 2.5 TDi SWB BJM, CECB 81 kW 2006-
VW Crafter 50 2.5 TDi LWB BJK, CEBB 81 kW 2006-
VW Crafter 50 2.5 TDi LWB BJM, CECB 81 kW 2006-
VW Kombi T5 1.9 TDi 4C AXB 79.5 kW 2004-2010
VW Transporter 1.9 TDI AXB 79.5 kW 2005-2009

Fitment Notes

  • Always match OEM reference number(s) and vehicle details before ordering. Confirm exact fitment using VIN, engine code, or chassis number if multiple variants exist.
  • This alternator is specified with a Valeo-type regulator, 6-rib pulley, and overrunning (freewheel) belt pulley - confirm the removed unit matches these details before ordering.

Installation / Use / Maintenance Tips

  • Disconnect the battery before removing or installing the alternator.
  • Inspect the drive belt, tensioner, pulley alignment, and charging cables before fitting the new unit.
  • Ensure the main B+ terminal and plug connections are clean and secure.
  • After installation, verify charging voltage at idle and at load, and confirm no battery or charging warnings remain.

Common Questions

Will this alternator fit my VW or Audi?
This part (ALT1242A) is listed for the fitments shown on this page. Confirm by matching the fitment details, OEM number, and VIN/engine code where variants exist.

What OEM part numbers does this cross-reference?
Cross-reference numbers are listed in the OEM Reference Numbers section above. Match at least one to your original part before ordering.

How do I confirm fitment if there are multiple variants?
Use VIN, engine code, and chassis/platform details and compare them to the fitment section above. If unsure, request fitment assistance before ordering.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 3048464012

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I purchased the DreamyBlue Signature Adjustable Pillow for my husband because he often experiences back discomfort, and many of the pillows we had previously would become flat and lose their support over time. This pillow has exceeded our expectations. It is incredibly soft, comfortable, and comes with extra filling, which allows you to adjust the firmness to your personal preference. We really appreciated having that option. Even after extended use, the pillow has maintained its shape much better than other pillows we've owned. It provides a plush, cozy feel while still offering good support. My husband finds it very comfortable, and it has quickly become his favorite pillow. This is a high-quality, well-designed pillow that combines softness, comfort, and adjustability. I would definitely recommend it.
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Reviewed in the United States on June 4, 2026
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I genuinely feel like I’ve tried every pillow on the market. At one point, I thought Amazon was going to flag my account because I bought and returned so many pillows trying to find the right one. This is the only pillow that made the cut. The shredded memory foam filling makes a huge difference because the pillow is both soft and supportive, while still being adjustable to fit the way you sleep. It arrives extremely full and plush, and it even comes with an extra bag of fill, which honestly surprised me. I ended up removing about half of the filling to get it exactly how I wanted it. I’m a side/stomach sleeper, which can make finding a good pillow difficult since most are either too thick or too flat. This one was perfect because I could shape it exactly how I sleep. It stays cool throughout the night, has a slightly heavier premium feel, and feels much higher quality than most pillows I’ve tried. Super comfortable, supportive, and customizable. I would absolutely recommend it and would definitely buy it again
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Reviewed in the United States on May 24, 2026
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Amazon Customer
Lowell, US
★★★★★ 4
A bit expensive
Size: Queen (Pack of 1)
Waited to give a review on this one because I needed several nights before I had any idea if it was as good as everyone says. I've had a real problem finding pillows lately. Either they're too soft to provide support and I wake up with a stiff neck or they're too sturdy and I wake up with a stiff neck. Contour pillows have worked best for me, but they fall under the category of too sturdy. I also toss and turn too much at night, which means I always end up in an awkward position with contour pillows. So I took a chance on an obscenely expensive pillow, and yes, that is the reason for one less star. I'd happily pay $70 for a pillow I thought was amazing and comfortable and perfect, but this one wasn't quite it. It IS comfortable. I have slept on it for a month now without it making my neck stiff, so it does actually provide a good balance between soft and sturdy. They make it easy to stuff the pillow to your preferred fluffiness and even provide extra stuffing if you need it, which adds to the degree of comfort. While the pillow does provide good neck support, I toss and turn a bit trying to find a comfortable position when I first try to sleep. The stuffing within the pillow moves around at night, most notably shifting to the side and the pillow is notably flatter now than when I first purchased it. You can fluff it out, similarly to a down pillow, but it doesn't seem to retain its shape on its own. In some ways, that's good because what it does instead is try to retain a shape that fits you. So yes, this is a really good pillow. One of the better ones you can buy. But it's really expensive for a pillow.
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Reviewed in the United States on May 13, 2026
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Amber Teele
New York, US
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Best pillow I've ever had
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