SKU: 16919786108

Turbocharger K03 Audi A3 TT VW Golf 4 GTi,Polo 9N BJX Jetta 4 New Beetle 1.8T 200102110102

Sale price$2632.50 Regular price$2925.00
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Description

Turbocharger K03 Audi A3 TT VW Golf 4 GTi,Polo 9N BJX Jetta 4 New Beetle 1.8T 200102110102Vehicle Compatibility This exhaust driven turbocharger is suitable for the following 1. 8T VAG applications as per catalogue listing: Audi A3 1. 8T AGU, AUM (1999 to 2003) Audi TT 1. 8T APX, BAM (2000 to 2006) Seat Ibiza 1. 8T Cupra BBU, BLZ (2006 to 2008) VW New Beetle 1. 8T AWU, BKF and related 1. 8T engines (2003 to 2010) VW Golf 4 1. 8 GTI Turbo AGU (1999 to 2004) VW Golf 4 1. 8T GTiR AUQ (2001 to 2005) VW Jetta 4 1. 8T AGU (2003 to 2005) VW Jetta

Vehicle Compatibility

This exhaust driven turbocharger is suitable for the following 1.8T VAG applications as per catalogue listing:

  • Audi A3 1.8T AGU, AUM (1999 to 2003)
  • Audi TT 1.8T APX, BAM (2000 to 2006)
  • Seat Ibiza 1.8T Cupra BBU, BLZ (2006 to 2008)
  • VW New Beetle 1.8T AWU, BKF and related 1.8T engines (2003 to 2010)
  • VW Golf 4 1.8 GTI Turbo AGU (1999 to 2004)
  • VW Golf 4 1.8T GTiR AUQ (2001 to 2005)
  • VW Jetta 4 1.8T AGU (2003 to 2005)
  • VW Jetta 4 1.8T GTiR AUQ (2002 to 2005)
  • VW Polo 2 (9N) BJX 1.8T (2006-2010)

Always confirm your engine code, model year and original turbocharger number before ordering to ensure correct fitment.

Specifications

  • Charge type: Exhaust turbocharger
  • Turbocharger type: K03 style unit
  • Suitable replacement for: Turbo 53039880052
  • Typical application: VAG 1.8T engines AGU, AUM, APX, BAM, BBU, BLZ, AWU, BKF and AUQ as listed

This unit is designed as a direct replacement for the original K03 turbocharger (reference 53039880052) on compatible Audi, VW and Seat 1.8T applications.

Features

  • Direct fit layout for selected 1.8T Audi, VW and Seat models using K03 style turbochargers.
  • Correct mounting points to match original manifold, downpipe and charge air connections.
  • Helps restore boost pressure and performance when the old turbo suffers from shaft play, oil leaks or noisy bearings.
  • Compatible with factory management on standard engines when installed according to manufacturer guidelines.
  • Suitable for everyday South African driving conditions from city traffic to long distance cruising.

Why Buy From Us

  • Local South African stock on key VAG 1.8T turbochargers for faster turnaround.
  • Twelve month warranty on this turbocharger when correctly installed by a qualified workshop.
  • Fitting advice available to help your mechanic confirm part numbers, engine codes and connections.

Trusted by thousands of South African drivers for quality and durability on critical engine components.

We offer convenient delivery across major centres including Johannesburg, Pretoria, Cape Town, Durban, Gqeberha, Bloemfontein and surrounding areas so your replacement 1.8T turbocharger can go straight to your door or workshop.

Installation & Maintenance Tips

  • Confirm engine code and original turbocharger number (for example 53039880052) on your Audi, VW or Seat before ordering.
  • Have the turbocharger installed by a qualified, VAT registered workshop experienced with VAG 1.8T engines.
  • Replace engine oil and oil filter with manufacturer approved grade at the time of installation.
  • Replace or thoroughly clean oil feed and return lines to eliminate sludge and prevent oil starvation.
  • Inspect and replace air filter, intake pipework and intercooler hoses where required to avoid foreign object damage.
  • Prime the turbocharger with clean engine oil and crank the engine to build oil pressure before allowing it to idle.
  • After installation, allow the engine to idle for a short period before switching off, especially after spirited driving.
  • Maintain regular service intervals and correct oil quality to maximise turbocharger life.

Return and Warranty Conditions

Please take note of the special return and warranty conditions applicable to turbochargers:

  • The turbocharger is non returnable if it has been correctly supplied for the specified vehicle application.
  • Returns are only considered if the incorrect turbocharger was supplied and it remains unused, clean and sealed in its original packaging.
  • Warranty is only valid if the turbocharger is fitted by a qualified, VAT registered workshop with an official invoice as proof of professional installation.
  • The installation invoice must clearly show that oil feed and return lines, coolant hoses where applicable, and air and oil filters were replaced during fitment.
  • Engine oil and oil filter must be replaced with a manufacturer approved grade at the time of installation.
  • The engine, intercooler and exhaust system must be flushed or cleaned to remove any contamination before fitting the new turbocharger.
  • The turbocharger must be hand primed with clean oil and correct oil pressure must be confirmed before the engine is operated under load.
  • Warranty will be void if failure is caused by oil starvation, oil contamination, overspeed, overboost or foreign object damage.
  • No warranty applies where tuning, mapping changes, blocked DPF or EGR systems or poor maintenance have contributed to turbocharger failure.
  • The unit must show no signs of tampering, disassembly or modification for any claim to be considered.
  • All claims are subject to supplier inspection and technical verification of the turbocharger.
  • The turbocharger is non returnable if it is dirty, has been fitted, is damaged or is missing original packaging and accessories.
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: 16919786108

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M
Chelsea, US
★★★★★ 5
Old school denim — not stretchy
Fit Type: Regular, Size: X-Small, Color: Authentic Medium Wash
Fabric used is old school denim — not the thin, stretchy stuff that pretty much everything called “denim” is today. It is 99% cotton (20% of which is recycled cotton) and 1% elastane, but I can’t feel any stretch in the fabric. It is a substantial, non-stretchy denim that gives the jacket really good structure. It has a higher end fit and look than the price would suggest. I wanted a more fitted denim jacket so ordered an XS even though according to the size chart I need a small. (I have a 34.5” bust, 28” waist at 118 pounds 5’4”.) It still buttons over a t shirt or lightweight sweater with freedom for movement/without being tight, but if I wanted a roomy fit or the ability to wear a heavier sweater or sweatshirt underneath and still be able to comfortably button it I would have needed a small. The shoulders are cut broad — I have very broad shoulders and the XS surprisingly fits my shoulders well. This jacket may not be the greatest fit for you if you have very narrow shoulders, unless you are going for an oversized look.
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Reviewed in the United States on May 17, 2026
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Carrie
Massapequa, US
★★★★★ 5
made well
Fit Type: Regular, Size: Large, Color: Iced Light Wash
I couldn't get this in my size (medium) so I ordered large. it's a little large in the shoulders, but it still looks good. it is a well made, substantial jacket. I love it!
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Reviewed in the United States on June 12, 2026
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Haley D
Battle Creek, US
★★★★★ 5
good stretch
Size: 10 Long, Color: Dark Wash
Honestly, these are one of those surprisingly good basics—especially for the price. The biggest standout is the stretch. They’re really comfortable and move with you, so they don’t have that stiff “jeans” feeling. They hug your body in a flattering way without feeling too tight or restrictive, which makes them easy to wear all day. The mid-rise fit is also a sweet spot—not too low, not too high—so they’re super versatile with different tops. What I liked: Very stretchy and comfortable (almost feels like jeggings, but still looks like denim) Flattering skinny fit through the legs Easy everyday jeans—work, errands, going out Great value for the price What to know: Material is on the thinner side (more comfort than “structured denim”) They can lose shape slightly after a full day of wear Not the most durable long-term compared to higher-end denim Final thoughts: These are perfect if you want cute, comfortable, affordable jeans you can throw on with anything. Not premium denim, but for everyday wear—they definitely get the job done and are worth having in your rotation.
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Reviewed in the United States on April 10, 2026
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Rachael W.
Massapequa, US
★★★★★ 5
Great
Size: 6, Color: Black
These were great, daughter wore them for her band concert. They fit nice, were soft, good quality and very black.
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Reviewed in the United States on June 5, 2026
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Isabel
Pawtucket, US
★★★★★ 4
Size down.
Size: 8 Long, Color: Iced Blue Light Wash
They are high stretch so I would size down from your usual size. I have bought size 10 in their brand and noticed the two previous I've purchased before this one were loose. So when I purchased this one I sized down and they fit good to me. I got long so they are LONG. And the regular would probably fit at your ankle or above. The only reason why I didn’t give it 5 stars was bc I don’t feel it mid rise to me it feels like high rise but I don’t feel them uncomfortable and also THEY ARE NOT SKINNY JEANS. They are straight leg and a tad bit loose so if you want stretch and skinny jeans these are not the ones for you. I only bought them thinking they were like the picture but it’s false advertisement.
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Reviewed in the United States on February 28, 2026

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