SKU: 50298609440

034Motorsport Billet Coolant Vent Union, EA888 Gen 3/4 1.8T/2.0T Engines (MQB/MQB EVO) - 034-102-Z048

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Description

034Motorsport Billet Coolant Vent Union, EA888 Gen 3/4 1.8T/2.0T Engines (MQB/MQB EVO) - 034-102-Z048034 Motorsport Billet Coolant Vent Union, EA888 Gen 3 4 1. 8T 2. 0T Engines (MQB MQB EVO) 034 102 Z048. The 034Motorsport Billet Coolant Vent Union is designed to replace the factory plastic and failure prone coolant union on the cylinder head of the EA888 Gen3 and Gen4 engines. Being next to the turbocharger, the factory plastic coolant union is subject to a lot of heat, becoming brittle and failing over time. The 034Motorsport Billet Coolant Vent

034 Motorsport - Billet Coolant Vent Union, EA888 Gen 3/4 1.8T/2.0T Engines (MQB/MQB EVO) - 034-102-Z048.

The 034Motorsport Billet Coolant Vent Union is designed to replace the factory plastic and failure-prone coolant union on the cylinder head of the EA888 Gen3 and Gen4 engines. Being next to the turbocharger, the factory plastic coolant union is subject to a lot of heat, becoming brittle and failing over time.

The 034Motorsport Billet Coolant Vent Union is designed to replace the factory plastic and failure-prone coolant union on the cylinder head of the EA888 Gen3 and Gen4 engines. Being in close proximity to the turbocharger, the factory plastic coolant union is subject to a lot of heat, becoming brittle and failing over time. Upgrading to the Billet Coolant Vent Union minimizes the risk of coolant leaks, enhancing the reliability of your EA888!

The 034Motorsport Billet Coolant Vent Union is machined from billet 6061-T6 aluminium, which is ideal for components exposed to high temperatures and harsh operating conditions. The Billet Coolant Vent Union is then black anodized for long-lasting looks and corrosion resistance to ensure that this upgrade is able to withstand the high temperatures next to your turbocharger.

FEATURES:

  • CNC Machined From Billet 6061-T6 Aluminium
  • Black Anodized for Long Lasting Good Looks and Corrosion Resistance
  • New O-Ring Preinstalled
  • Direct Replacement of OEM Component

WHAT'S INCLUDED:

  • 034Motorsport Billet Coolant Vent Union
  • 1x O-Ring Preinstalled

OE PART NUMBER INTERCHANGE:

  • 06K 121 143
Make Model Years Chassis Engine
Audi A3 2013-2020 8V/8V.5 2.0 TFSI
Audi A3 2022-Present 8Y 2.0 TFSI
Audi A4 2017-Present B9/B9.5 2.0 TFSI
Audi A5 2012-2017 B8/B8.5 2.0 TFSI
Audi A5 2017-Present B9/B9.5 2.0 TFSI
Audi A6 2012-2018 C7/C7.5 2.0 TFSI
Audi A7 2014-2018 C7/C7.5 2.0 TFSI
Audi allroad 2017-Present B9/B9.5 2.0 TFSI
Audi Q3 2019-Present F3 2.0 TFSI
Audi Q5 2018-Present B9/B9.5 2.0 TFSI
Audi S3 2013-2020 8V/8V.5 2.0 TFSI
Audi S3 2022-Present 8Y 2.0 TFSI
Audi TT 2016-2020 8S 2.0T Gen 3
Audi TTS 2016-2020 8S 2.0T Gen 3
VW Arteon 2019-2022 I 2.0T Gen3
VW Beetle 2012-2019 Mk6 1.8T Gen3
VW Beetle 2012-2019 Mk6 2.0T Gen3
VW GLI 2014-2017 Mk6 2.0T Gen3 Non-MQB
VW GLI 2018-Present Mk7 2.0 TSI Gen3
VW Golf 2013-2020 Mk7/MkV7.5 1.8T Gen3
VW Golf SportWagen 2013-2020 MkV7/MkV7.5 1.8T Gen3
VW Golf Alltrack 2013-2020 MkV7/MkV7.5 1.8T Gen3
VW Golf R 2013-2019 Mk7/Mk7.5 2.0 TSI Gen 3
VW GTI 2013-2021 Mk7/Mk7.5 2.0T Gen3
VW Jetta 2013-2017 Mk6 1.8T Gen3
VW Passat 2012-2019 B7 1.8T Gen3
VW Tiguan 2016-Present Mk2 2.0T Gen3


Installation:

The installation of your 034Motorsport Billet Coolant Vent Union, EA888 Gen 3/4 1.8T/2.0T Engines is a straightforward process that will take approximately 30 minutes to complete. You can access our detailed installation guide by clicking the link below.

Download the 034Motorsport Billet Coolant Vent Union, EA888 Gen 3/4 1.8T/2.0T Engines Install Guide

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: 50298609440

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4.8 ★★★★★
Based on 13 reviews
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Product Reviews
C
Verified Purchase
Carlos A Freitas
Dallas, US
★★★★★ 5
Timeless precision
Color: silver watch for men, Color: silver watch for men
The watch combines a sleek design with practical functionality it’s chrome still casing feels durable, and the strap is comfortable for all day wear the dial is clear and easy to read with luminous hands that work well in low light the battery life is impressive and the timekeeping is accurate it excels as a reliable every day watch with a stylish look
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
L
Verified Purchase
Lucas Bashaw
New York, US
★★★★★ 5
Great watch, would recommend
Color: blue watches 58, Color: blue watches 58
I really like this watch because it looks amazing. It’s much lighter than I expected, so it’s comfortable to wear all day at school without feeling heavy. When I first got it, the metal band was a little bit squeaky, but after wearing it for a while, the noise completely stopped. I had to remove a few links to make it fit my wrist, but the adjustment was actually really easy to do yourself. The clasp is great too it stays closed and it doesn’t pinch my skin at all. The blue and gold colors look awesome together, and it’s definitely a great watch for the price
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
J
Verified Purchase
JonnyBoyAmazon
Bozeman, US
★★★★★ 5
My new favorite watch. Simple home improvement needed
Color: all black watch mens, Color: all black watch mens
Despite having many reknown brand watches in my collection, these inexpensive Olevs watches are now my favorite. They look nice, cost practically nothing and so far are very accurate (10 day review). Little to worry about if lost or damaged. PROS: 1. Inexpensive $40/each. 2. As stylish as other fashion watches 5x-10x more expensive. 3. Watch Crystal (i.e., glass) has a unique, faceted shape, which reflects light, feels "Manly" and matches faceted bezel. 4. Light weight and slim case; fits small wrists nicely (I have 6.4" wrists). 5. Accurate - two watches tracked over 10 days. Watch one: -7 seconds/10 days. Watch two: +2 seconds/10 days. 6. Illuminescent (i.e., glow-in-the-dark) hands and watch face look decent in dark. CONS: 7. Lightweight and cheap material - durability is questionable, especially coatings. 8. Bracelet/band links have excessive gaps to each other and rattle badly, making watch noisy and embarrassing. *Home fix* 9. Faceted Crystal can make it difficult to see exact time, because of light reflection. 10. Single clasp on bracelet could easily open inadvertently, vs double clasp. 11. Crown is not threaded and spins freely, even when closed (doesn't change time); likely poor water proofing and crown can easily open. 12. Difficult to set time accurately; crown movement is figity and closing crown can cause hands to easily move. 13. Second hand doesn't exactly line up with tick marks making it difficult to know if actual time is before, or after tick mark. *AT HOME FIX*: To fix the noisy bracelet, simply cut to length a piece of waterproof medical tape 15-16mm (5/8") wide, then attach to inside of clean bracelet, while spreading the links apart with your finger (i.e., stretch band). Do this on each bracelet, but don't cover clasp. Tape will need to be replaced, as it gets dirty, but it makes watch quiet. - Watch dimensions for collectors - A) Case Diameter (to Crown): 44mm B) Case Diameter: 42mm C) Lug-to-Lug length: 50.5mm D) Case Thickness (Top of Crystal): 12.6mm E) Strap/Bracelet Width at Case: 20mm F) Strap/Bracelet Width at Clasp: 18mm G) Weight 6.4" wrist size: 100g (3.5oz)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2025
B
Verified Purchase
Banks
Boise, US
★★★★★ 4
It's a watch
Color: blue watch for men
Not a bad watch. Cheap, looks good and works. Take it to your local jeweler and they can pop the links out in no time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
C
Verified Purchase
C. Garton
Draper, US
★★★★★ 5
Nice But Overpaid
Color: Black Embossed
Very happy about the purchase. The style is great, size is perfect, and the leather is really nice. When I unpacked it, the MSRP ticket was inside showing the cost of $125, but I paid $150. Not so happy about that part.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026

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