Call Us330-331-2003 ChatLive Chat Text Us!
0
Sales & Specials
Enter Your Vehicle
garage-red
Your Vehicle Please tap 'Select' to pick a vehicle

Heavy-Duty Aluminum Thermostat Cooling Hose Adapter (5Q0122291DA)

Upgrade to durable cast aluminum construction & say goodbye to failure-prone plastic!
10X Entries Into Our F80 M3 Sweepstakes
ECS
Mfg Part #
054443LA01KT 054443LA01KT
ECS Part #
ES#4920775
Brand
ECS

SALE: 78.74 (25% OFF)
WAS: $104.99 on 06-13-2026

This product was last offered at the strikethrough price on
06-13-2026


Free Shipping Free Shipping
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
Availability:
In Stock
Est. Ship Date:
Today
Qty
Does this fit my vehicle?

Product Details

10X Entries Into Our F80 M3 Sweepstakes

The factory "Quick Acting Coupling" is tasked with joining the upper radiator hose to the thermostat inlet. After years of exposure to piping hot, chemical-rich antifreeze, the coupling can fail, causing a rapid loss of coolant and potential engine damage. With this failure in mind, our team of engineers set out to create a permanent solution. After sorting through several different materials and designs, we're proud to offer a long-lasting, cast aluminum upgrade—the last cooling hose adapter you'll ever need!

By utilizing durable cast aluminum construction, our heavy-duty aluminum thermostat cooling hose adapter eliminates common issues such as cracking, leaking, and material degradation that may occur after years of use. This aluminum construction also helps maintain the integrity of your vehicle's cooling system by providing a stronger and more reliable connection point. Additionally, a corrosion-resistant finish ensures continued performance even with prolonged exposure to coolant. Precision-machined to the exact dimensions of the factory part, our design ensures a perfect fit and easy installation.

Whether you're repairing a failed adapter, performing a cooling system overhaul, or looking to enhance the reliability of your daily driver, upgrade to our Heavy-Duty Aluminum Thermostat Cooling Hose adapter to ensure long-term durability and performance!

DESIGN

  • Durable cast aluminum construction replaces the factory plastic flange, eliminating the risk of cracks, leaks, and other forms of degradation
  • Precision-machined to the exact dimensions of the factory part, ensuring a perfect fit on compatible 1.8T and 2.0T Gen3 engines
  • A pre-installed heavy-duty Viton fluoroelastomer o-ring provides increased sealing
  • Corrosion-resistant finish resists the harsh effects of coolant exposure, ensuring long-term durability and appearance

PRODUCT DEVELOPMENT

Our Heavy-Duty Aluminum Thermostat Cooling Hose Adapter was designed, engineered, tested, and quality inspected by our Research and Development team in our Wadsworth, Ohio, facility. We strive for the highest level of precision and quality through leading-edge product development technology, including FARO laser scanning for reverse engineering and quality inspection, SolidWorks 3D CAD modeling, rapid prototyping utilizing our in-house 3D printer, and rigorous long-term product testing.

Cross Reference
  • 5Q0122291DA
  • 5Q0 122 291 DA
  • 5Q0122291AL
  • 5Q0 122 291 AL

This Part Fits the Following Vehicles

Make Model Submodel Engine Special Fitment Notes
Audi 8V S3 Quattro 2.0T Use vehicle selector to confirm fitment
Audi A3 8V FWD 2.0T Use vehicle selector to confirm fitment
Audi A3 8V Quattro 2.0T Use vehicle selector to confirm fitment
Volkswagen Alltrack All 1.8T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII Hatchback 1.8T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII Sportwagen 1.8T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII Hatchback 2.0T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII All 2.0T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII Facelift FWD 1.8T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII Facelift FWD 2.0T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII R 4Motion 2.0T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII R Facelift 4Motion 2.0T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII SportWagen Facelift 4Motion 1.8T Gen3 Use vehicle selector to confirm fitment
Volkswagen Golf VII SportWagen Facelift FWD 1.8T Gen3 Use vehicle selector to confirm fitment
*The above product applications have been written by ECS Tuning. All warranties, product application, fitment, and performance are the responsibility of ECS Tuning. For additional information see the terms of use.

Kit Contents

Description Brand Qty Lifetime
Cooling Hose Retaining Clip - Priced Each Febi - Corporate Logo 1 YES
Cast Thermostat Cooling Hose Adapter ECS - Corporate Logo 1 YES

This Product Is Covered By Our Lifetime Replacement Program

Products protected by our Lifetime Replacement Program are covered for as long as you own the product, no need to worry about an expiration date. Purchase your products and enjoy some worry-free motoring, knowing we've got you covered.

If you have any questions, would like to learn more or are ready to place a replacement claim, click here!

+ +

Return and Exchanges

Need to set up a return? Click here to begin: Return Process

All you need is your order number and email address.


New/Unused Product Returns

ECS Tuning will accept returns for unused products within 90 days of the ship date for a refund to the original payment method used. The customer is responsible for the return shipping costs and fees. If selecting to use a prepaid shipping label, the shipping cost will be deducted from the total refunded amount. All new/unused products must be new, unused and must be in the original packaging, including labeling, manuals, hardware, etc. Special order parts are non-refundable.

In the event that we find an error on our website or on behalf of an ECS Tuning Representative, we will provide a return shipping label from the original delivery location.

Refused Packages

Any domestic orders that are returned to ECS Tuning as refused by receiver or non-deliverable will be subject to a return handling fee and will be processed as a return in compliance with our standard return policy, including a 15% restocking fee.

Any international orders that are refused at the time of delivery will be subject to carrier abandonment of the package, at which time the ordered products would be discarded by the carrier. The customer will not be refunded for the value of the order and the discarded products are no longer retrievable.

Return Process

Return Process

ECS Tuning now offers an online returns solution! To get started, simply log into your ECS Tuning account, Click the "View Orders" button on the My Account home page and select the order that you wish to make a return on to begin. If you have any questions, feel free to reach out to our Customer Service Team for assistance!

Please note: Refunds will be processed to the original payment method used on the order or to an in store credit, respective to the type of return that is made as well as any pre-existing arrangements with an ECS Tuning Customer Service Representative. In the event that multiple forms of payment were used, we will refund the value to an in store credit. In the event that a return label is provided, these charges may be deducted from the total refund you receive.

Original shipping costs are non-refundable and the buyer is responsible for return shipping charges. ECS Tuning will not accept COD deliveries.


All in store credit balances will expire after one year from the original purchase date.

+ +

Shipping Policy

Free Shipping On Orders $49 & Up

Items marked with a 'Free Shipping On Orders $49 and Up' logo may qualify for free standard economy ground shipping to the contiguous United States (48 states) for most orders with a value greater or equal to $49.00 USD. Oversized products and direct ship products are excluded from this offer unless otherwise noted.

Free Shipping

Items marked as 'Free Shipping' may qualify for free standard economy ground shipping to the contiguous United States (48 states). Oversized products and direct ship products are excluded from this offer unless otherwise noted.


The policies listed above are subject to change at any time without notice.

+ +

Lifetime Replacement

Want to know more about our Lifetime Replacement program?

Click here to learn more.

+ +

Why You Should Shop From ECS Tuning

ECS Tuning stands out as more than an automotive parts supplier-it's a vibrant community fueled by a shared passion for cars. Born from the enthusiasm of car lovers, we offer an unmatched understanding and commitment to the automotive world, providing high-quality parts and accessories sourced from our own experiences. Our selection is meticulously crafted to meet the highest standards of performance, quality, and design, catering to both the latest trends and classic styles.


Our distinct advantage lies in our passionate team and comprehensive support, offering expert advice and seamless service from selection to installation. Shopping with ECS brings exclusive perks, including our Lifetime Replacement Guarantee and free shipping on orders over $49, enhancing the value of every purchase. As a central hub for car enthusiasts, ECS Tuning fosters a rich community where ideas and experiences flourish, transforming us from a mere supplier into a platform where automotive dreams come to life.

+ +

Cancellation Policy

At ECS Tuning, we understand that plans can change. That's why we offer a flexible cancellation policy for our customers. You may cancel your order at any time before you receive the shipment confirmation. This policy is designed to provide you with peace of mind and the flexibility to make adjustments to your purchases as needed. Should you decide to cancel your order, simply reach out to our customer service team, and we will assist you with the process swiftly and efficiently.

Shop Our Clearance Sale - Up To 80% Off
Revamp your ride with unbeatable deals!
Hurry, limited stock available!
Shop Now

Prop 65 WarningProp 65 Warning

Frequently Purchased Together

ECS Tuning is not affiliated with any automobile manufacturers.
Manufacturer names and/or part numbers are used only for identification purposes.

Terms of Use Privacy Policy Your Privacy Choices Cookie Policy ECS Tuning is part of Enthusiast Auto Holdings