1.8T Billet Aluminum Fuel Injector Cup Replacement Kit
For Vehicles with Engine Codes AWD, AWP, and AWW.

Product Details
For Vehicles with Engine Codes AWD, AWP, and AWW.
Constructed from heat-sensitive plastic, your factory 1.8T fuel injector cups are prone to self-destruction. After years of constant exposure to engine heat, vibration, and chemical-laden fuel residue, cracks will form in the seat of the insert and create a multitude of issues. Boost and fuel leaks will eventually prompt a lean running condition, a rough idle, and multiple diagnostic trouble codes.
With these issues in mind, our engineering team set out to create an everlasting, performance-minded replacement for the factory insert. The result is a precision-machined piece crafted from 6061-T6 billet aluminum—a material selected for its excellent strength, durability, and overall resistance to fatigue. Unlike the brittle OE plastic inserts, our billet cups are built to last under extreme stress, ensuring your injectors remain perfectly seated and aligned at all times.
To protect the surface, each injector cup is finished with type-II satin silver anodization. This adds a durable layer of corrosion and chemical resistance, ideal for withstanding fuel and oil vapor exposure when installed inside the intake manifold. Precision tolerances and a threaded design provide a secure, leak-proof installation that eliminates boost leaks and injector misalignment.
Whether you're shopping for a durable replacement for your worn plastic cups or vetting a performance upgrade, choose our Billet Aluminum Injector Cups for your 1.8T to ensure long-lasting durability!
KIT CONTENTS
- (4) ECS 1.8T Billet Aluminum Fuel Injector Cups/Inserts
- (1) Elring Fuel Injector Seal Kit
- (1) 20mm Hex Key
- (1) Loctite® #565 Thread Sealant Tube (0.2 fl. oz.)
DESIGN
- Precision-machined to match the exact tolerances and dimensions of the OEM Fuel Injector Insert
- Manufactured from 6061-T6 billet aluminum for increased durability
- 20mm internal hex drive structure provides trouble-free installation
- Type-II hard-coat anodized ensures lasting corrosion resistance
INSTALLATION & SUPPORT
Our Billet Aluminum Injector Cups install the same as your factory plastic inserts, providing an easy, stress-free upgrade. To ensure a leak-free seal, we recommend purchasing Loctite® #565 Thread Sealant (ES#2770778) and applying it to the threaded portion during installation. Additionally, we suggest a 20mm Allen Key to aid in the installation process (ES#4912390).
PRODUCT DEVELOPMENT
Our 1.8T Billet Aluminum Injector Cups were tested and quality inspected by our research and development team at 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.
- 06B133555H
- 06B133555D
This Part Fits the Following Vehicles
Make | Model | Submodel | Engine | Special Fitment Notes |
---|---|---|---|---|
Audi | B5 A4 | FWD | 1.8T | For Vehicles with Engine Codes AEB, ATW, and AWM. |
Audi | B5 A4 | Quattro | 1.8T | For Vehicles with Engine Codes AEB, ATW, and AWM. |
Audi | B6 A4 | FWD | 1.8T | For Vehicles with Engine Code AMB. |
Audi | B6 A4 | Quattro | 1.8T | For Vehicles with Engine Code AMB. |
Audi | TT MKI | FWD | 180HP | For Vehicles with Engine Codes ATC, AMU, and AWP. |
Audi | TT MKI | Quattro | 180HP | For Vehicles with Engine Codes ATC, AMU, and AWP. |
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 | For Vehicles with Engine Codes AWD, AWP, and AWW. |
Volkswagen | Jetta IV | All | 1.8T | For Vehicles with Engine Codes AWD, AWP, and AWW. |
Volkswagen | Jetta IV GLI | All | 1.8T | Use vehicle selector to confirm fitment |
Volkswagen | New Beetle | All | 1.8T | For Vehicles with Engine Codes APH, AWP, AWV, and BKF. |
Volkswagen | Passat B5 | 4 Motion | 1.8T | For Vehicles with Engine Codes AEB, ATW, AUG, and AWM. |
Volkswagen | Passat B5 | FWD | 1.8T | For Vehicles with Engine Code AWM. |
Kit Contents
Description | Brand | Qty | Lifetime | |
---|---|---|---|---|
Fuel Injector Retaining Clip - Priced Each |
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4 | YES | |
Fuel Injector O-Ring - Priced Each |
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8 | YES | |
Loctite® #565 Thread Sealant - 0.2 Oz. Tube |
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1 | NO | |
Billet Aluminum 1.8T Fuel Injector Cup - Priced Each |
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4 | YES | |
Hex L-Key - 20mm |
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1 | YES |

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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