G87 M2 SWEEPSTAKES
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G87 M2 SWEEPSTAKES
No purchase necessary. See official rules.
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Your Vehicle Audi B8/B8.5 S5 Quattro 3.0T Coupe

ECS Performance Coolant Outlet Hose Kit

Upgrade to a much more durable connection from your thermostat to your cylinder head!
10X Entries For Our G87 M2 Sweepstakes!

ECS
Mfg Part #
004503LA01
ECS Part #
ES#4164359
Brand
ECS

SALE: 90.94 (15% OFF)
WAS: $106.99 on 08-09-2025

This product was last offered at the strikethrough price on
08-09-2025


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on orders $49 and up
This product is lifetime replacement eligible Lifetime Replacement
This product is backed by our
Lifetime Replacement Program! Read more here
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Product Details

10X Entries For Our G87 M2 Sweepstakes!

Some of the biggest issues when owning a BMW can come from cooling system components. Even after many years of improvement, the same failure is seen with the plastic fittings and adapters from years of hot to cold temperature fluctuation. The N55 engine sees failure at the plastic adapter connecting the thermostat hose to the cylinder head, this adapter simply shears off at the end of the barbed fitting.

The engineering team here at ECS decided a billet aluminum piece was a much better option to contend with the temperature fluctuation, and since other offerings on the market want you to modify your OE hose to be reused, we even developed a silicone replacement hose. These 2 pieces can be purchased separately if you decide to reuse your existing OE hose or in a package kit together for a single click upgrade.

Features: 

  • Manufactured from billet 6061-T6 and type III anodized for exceptional durability and corrosion resistance.

    • Much stronger part than OEM plastic

    • Will not become brittle and fatigue over time due to thermal cycling.  This will prevent the part from breaking during removal and re-installation.

  • Constructed of 4-Ply reinforced silicone for improved durability over the failure-prone OE rubber hose.
  • Flourosilicone lined internal layer for exceptional chemical resistance.
  • Silicone offers reduced thermal conductivity as well as improved resistance to ozone and UV degradation for improved performance and durability.
  • Follows the OEM form for perfect fitment.
  • Utilizes OEM O-ring 11537545278 to ensure a proper seal.

Aftermarket replacement for Genuine BMW Part # 11537598234

Cross Reference
  • 11537598234

This Part Fits the Following Vehicles

Make Model Submodel Engine Special Fitment Notes
BMW F22 M235i N55 3.0L Use vehicle selector to confirm fitment
BMW F22 M235i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F23 M235i N55 3.0L Use vehicle selector to confirm fitment
BMW F23 M235i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F30 335i N55 3.0L Use vehicle selector to confirm fitment
BMW F30 335i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F30 ActiveHybrid 3 N55 3.0L Use vehicle selector to confirm fitment
BMW F32 435i N55 3.0L Use vehicle selector to confirm fitment
BMW F32 435i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F33 435i N55 3.0L Use vehicle selector to confirm fitment
BMW F33 435i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F34 335i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F36 435i N55 3.0L Use vehicle selector to confirm fitment
BMW F36 435i xDrive N55 3.0L Use vehicle selector to confirm fitment
BMW F87 M2 N55 3.0L 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
ECS Billet Cylinder Head Outlet Hose Adapter ECS - Corporate Logo 1 YES
THERMOSTAT HOSE KIT Turner Motorsport - 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!

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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.

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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.

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Lifetime Replacement

Want to know more about our Lifetime Replacement program?

Click here to learn more.

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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.

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

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