MK4 Performance Aluminum Radiator
- Mfg Part #
- 018163ECS01KT
- ECS Part #
- ES#4001222
- Brand
-
This product was last offered at the strikethrough price on
06-13-2026
Free Shipping
Product Details
The factory radiator in the VW MK4 Golf/Jetta was engineered to only support stock power outputs and last within a set service life. All too often the MK4 radiators leak out of the end tanks due to corrosion or failed epoxy and suffer from heat soak when more additional power is added. The ECS Tuning in-house engineered Performance Aluminum Radiator solves both issues by utilizing a larger volume, dual row, dual-pass aluminum heat exchanger, hand TIG-welded to 5052 aluminum end tanks and polished to perfection. Featuring a 26% increase in overall volume compared to stock, this is a direct replacement radiator that will outperform and outlast the OE unit!
PART DESIGN
Our radiator utilizes all factory mounts, fan shroud, fan switch and radiator hoses for a direct OE upgrade WITHOUT modifications to any other components
Increase in +26% volume over the stock radiator. ECS Radiator measures 2.125 Liters internal volume compared to the OEM Radiator at 1.560 Liters
Larger volume, dual row, dual-pass aluminum heat exchanger
Pressure tested to 1.5 bar at 0% leak down to ensure quality and leak-proof manufacturing
Fabricated 5052 aluminum end tanks
Fully TIG welded, featuring a polished finish
KIT CONTENTS
Aluminum Radiator
Radiator Fan Shroud mounting screws and washers - QTY 4
A/C Condenser mounting screws and washers - QTY 4
Lower A/C Line mounting screw and washer - QTY 1
Medium Strength, Blue Threadlock
PERFORMANCE FEATURES
+26% increase in cooling system capacity (+0.565 Liters)
100% aluminum construction, TIG welded and pressure checked, for enhanced durability
PRODUCT DEVELOPMENT
Our ECS Performance Aluminum Radiator 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.
INSTALLATION AND SUPPORT
Looking for installation tips? Look no further, we put together a full installation tutorial from start to finish, including how to remove your bumper and other parts, in detail! See our Installation PDF under the INSTALLATION Tab for more information.
Please note that installation accessories are not included. Please see our full installation kit (ES4005135) with this radiator, for a complete package.
Due to vibrations, we recommend a few drops of medium-strength thread locking compound to be applied to the radiator fan shroud mounting screws. For your convenience, we've included a small tube for this purpose.
- 1J0121253AD
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| Audi | TT MKI | FWD | 180HP | Use vehicle selector to confirm fitment |
| Audi | TT MKI | Quattro | 180HP | Use vehicle selector to confirm fitment |
| Audi | TT MKI | Quattro | 3.2L | Use vehicle selector to confirm fitment |
| Audi | TT MKI | Quattro | 225HP | Use vehicle selector to confirm fitment |
| Volkswagen | 337/20AE | All | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | Golf IV | All | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | Golf IV | All | 2.0 | Use vehicle selector to confirm fitment |
| Volkswagen | Golf IV | All | TDI | Use vehicle selector to confirm fitment |
| Volkswagen | Golf IV | All | VR6 12v | Use vehicle selector to confirm fitment |
| Volkswagen | Golf IV | All | VR6 24v | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta IV | All | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta IV | All | 2.0 | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta IV | All | TDI | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta IV | All | VR6 12v | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta IV | All | VR6 24v | Use vehicle selector to confirm fitment |
| Volkswagen | Jetta IV GLI | All | 1.8T | Use vehicle selector to confirm fitment |
| Volkswagen | R32 MKIV | All | 3.2 | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| Alloy Steel Torx Rounded Head Screws, M5 X 0.8 Mm Thread, 10 Mm Long |
|
9 | YES | |
| Zinc-Plated Steel Oversized Washer For M5 Screw Size, 5.3 Mm ID, 15 Mm OD |
|
9 | YES | |
| Performance Aluminum Radiator |
|
1 | YES | |
| Loctite 242 Threadlocker Blue - .02oz single use capsule |
|
1 | NO |
Installation
Some kit components are 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
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.
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