High Performance Aluminum Radiator & Heat Exchanger Kit - G2X B58
- Mfg Part #
- 008765LA01KT
- ECS Part #
- ES#5373996
- Brand
-
This product was last offered at the strikethrough price on
06-13-2026
Free Shipping
Product Details
Maximize cooling system efficiency and performance with our High Performance Cooling System Bundle—a complete system upgrade that includes our High Performance Aluminum Radiator and High Performance Aluminum Heat Exchanger. Designed to handle the intense heat generated by tuned and track-driven BMWs, this package delivers superior temperature control, improved reliability, and consistent performance under demanding conditions.
For performance-focused applications, the factory BMW G2X radiator and heat exchanger simply don’t meet the demands of higher heat loads and spirited driving. Like many BMWs, the factory heat exchanger and radiator feature molded plastic end tanks—a common and well-documented failure point. In addition to this issue, the single-row cores are far undersized for high-horsepower, track-focused builds, measuring a measly 25mm (heat exchanger) and 34mm (radiator). With these issues in mind, we set out to offer the ultimate cooling system upgrade for the G2X B58 platform: an all-aluminum, dual-row, high-performance radiator and heat exchanger kit!
Engineered in-house by our dedicated team of BMW enthusiasts, our cooling upgrade kit offers significant increases in both cooling capacity and overall system durability. To improve upon the factory design, our engineers started by addressing the weak, failure-prone plastic end tanks. Constructed from durable 6061-T6 aluminum and TIG-welded for added strength, these end tanks are guaranteed to outlast the factory design. Additionally, our proprietary end tanks feature CNC-machined billet aluminum hose connectors, flanges, and mounting brackets. This ensures seamless integration with the factory hoses, fan shroud, and accessories, providing a trouble-free fit and effortless installation.
To increase the radiator's thermal capacity, we replaced the 34mm, single-row core with a dual-row, 42mm core. This increases the effective volume of the cooling system, thereby improving the radiator's ability to dissipate heat. The heat exchanger received the same 42mm dual-row core, a massive increase over the factory 25mm size. This grants lower IATs, keeping your car cooler on both the street and the track!
The radiator is engineered to replace OEM part numbers 17118666740 & 17115A30677. The heat exchanger is designed to replace OEM part numbers 17118666811 & 17115A54040.
FEATURES
- 6061 aluminum construction eliminates plastic end tank failures
- Performance-oriented dual-row core
- OE Radiator: Single-row, 34mm core
- ECS High Performance Aluminum Radiator: Dual-row, 42mm core - an increase of 45%!
- OE Heat Exchanger: Single-row, 25mm core
- ECS High Performance Aluminum Heat Exchanger: Dual-row, 42mm core - an increase of 72%!
- TIG-welded 6061-T6 aluminum end tanks
- End tanks are polished for a high-quality appearance
- CNC-machined connectors and bracketry ensure seamless fitment with factory radiator hoses, transmission cooler lines, condenser, and intercooler
- Drop-in upgrade - no modifications required for installation!
PRODUCT DEVELOPMENT
Our High Performance Aluminum Radiator & Heat Exchanger Kit 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.
- 17118666811
- 17115A54040
- 17118666740
- 17115A30677
This Part Fits the Following Vehicles
| Make | Model | Submodel | Engine | Special Fitment Notes |
|---|---|---|---|---|
| BMW | G20 | M340i | B58 3.0L | Use vehicle selector to confirm fitment |
| BMW | G20 | M340i xDrive | B58 3.0L | Use vehicle selector to confirm fitment |
| BMW | G22 | M440i | B58 3.0L | Use vehicle selector to confirm fitment |
| BMW | G22 | M440i xDrive | B58 3.0L | Use vehicle selector to confirm fitment |
| BMW | G23 | M440i | B58 3.0L | Use vehicle selector to confirm fitment |
| BMW | G23 | M440i xDrive Convertible | B58 3.0L | Use vehicle selector to confirm fitment |
| BMW | G42 | M240i | B58 3.0L | Use vehicle selector to confirm fitment |
| BMW | G42 | M240i xDrive | B58 3.0L | Use vehicle selector to confirm fitment |
Kit Contents
| Description | Brand | Qty | Lifetime | |
|---|---|---|---|---|
| High Performance Aluminum Radiator - G2X B58 |
|
1 | YES | |
| High Performance Aluminum Heat Exchanger - G2X B48 B58 |
|
1 | YES |
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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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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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