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BMW Radiators

We sell only OE supplier or approved aftermarket upgrade radiators for your BMW. It seems BMW took some shortcuts when it came to radiator design and used weak materials like plastic for critical connection points. If you are tracking older models like E30, E36, or E46, you probably are well aware of these issues. As these cars age, the plastic pieces become more brittle and failure prone. The solution is to replace with upgraded radiators that perform as upgrades for the original, failure prone radiator to avoid being left on the side of the road or, worse yet, the track.
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Turner Motorsport - Corporate Logo
T#:47850810
Part#: 050626LA01
In Stock
Sale - Save 25% $ 509.99

This product was last offered at the strikethrough price on
06-14-2026

$ 382.49 USD
Free Shipping
Sale - Save 25%
$ 509.99

This product was last offered at the strikethrough price on
06-14-2026

$ 382.49 USD
Free Shipping

BMWs turbocharged S55 engine uses a water-to-air charge air cooling system, with a front-mounted heat exchanger responsible for heat dissipation. Unfortunately, the factory single-row, 27mm core design is quick to heat soak under high load, leading to excessive intake air temperatures and potential limp mode conditions especially on modified or track-driven cars.

To solve this issue, we've developed a drop-in upgrade over the factory unit. Engineered for durability and maximum cooling efficiency, this heat exchanger is a must-have for high-horsepower street builds, spirited canyon driving, and extended track sessions. Built from TIG-welded 5052 aluminum, our design eliminates the factory plastic end tanks one of the systems most common failure points. Each heat exchanger features CNC-machined billet aluminum hose connections, mounting flanges, and brackets for perfect OE fitment and trouble-free installation.

By replacing the OEM 27mm single-row core with a robust 35mm dual-row design, this heat exchanger dramatically increases both cooling capacity and surface area. Frontal area jumps from 307mm to 475mm, resulting in a 100% increase in coolant volume and significantly improved heat-soak resistance. The outcome? Lower, more stable charge air temperatures that help your S55 deliver consistent, reliable power on the street or at the track.

Replaces OEM part numbers 17112284608 and 17112459062.

Features:

5052 aluminum construction eliminates plastic end tank failures A performance-oriented, dual-row core provides a 55% increase in frontal surface area, and a 100.29% increase in coolant volume over the OE heat exchanger! OE Heat Exchanger: Single-row core 27mm core thickness 307mm core height ECS High Performance Aluminum Heat Exchanger: Dual-row core 35mm core thickness 475mm core height TIG-welded 5052 aluminum end tanks, polished to a mirror finish for a high-quality look CNC-machined connectors and bracketry ensure seamless fitment with factory cooling hoses, transmission cooler lines, condenser, and radiator Drop-in upgrade - no modifications required for installation! Product Development:

Our High Performance Aluminum Heat Exchanger 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.

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Turner Motorsport - Corporate Logo
T#:41154282
Part#: 004268LA01
In Stock
$ 604.99 USD
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$ 604.99 USD
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Ditch your failure-prone plastic end tanks and increase cooling capacity by 25%—all without modifying your core support or accompanying shrouds. This Performance Triple-Pass Radiator is the ULTIMATE cooling system upgrade for your S54-equipped BMW!

The E46 M3 is a masterclass in German engineering. Harboring six independent throttle bodies, infinitely variable dual-VANOS, and an 8,000 RPM redline, the S54 is practically a racing engine for the road. Unfortunately, the engine's motorsport pedigree didn't quite make it to the cooling system. The OEM radiator, while superior to its non-M counterpart, struggles to keep coolant temperature in check under sustained high-RPM conditions. Heat soak, elevated operating temperatures, and component fatigue are all too familiar to M3 owners who track their S54 regularly.

To solve this problem, we teamed up with CSF Race, a global leader in high-performance cooling solutions with over five decades of industry experience. Together, we developed the CSFxTurner Triple-Pass Radiator: a high-performance, no-compromise solution built to meet the cooling demands of track-day warriors.

Part Design:

CSF-Exclusive "B-Tube" Technology Unlike conventional "O-tube" designs, CSF’s patented B-tube structure increases wall strength while creating a more efficient flow path. This alone accounts for a 15% increase in cooling capacity over an OE "o-tube" radiator! Triple-Pass Core Design As the name suggests, this unique structure forces coolant through the core three times before exit, resulting in a substantial temperature delta across the radiator core. Two-Row Compact Structure This radiator was designed with precise fitment in mind. While total tube count and size are increased, the overall radiator dimensions stay the same as OE, ensuring a drop-in fit with zero modifications required. 25% Increase in Cooling Capacity All of the above design features translate to a massive 25% cooling increase over the stock radiator! Features & Performance Benefits:

Direct-fit upgrade—no modifications required! Accepts all OEM attachments via CNC-machined "Quick-Connect" hose ends and accessory mounting provisions TIG-welded aluminum construction provides increased durability An all-aluminum drain plug replaces the weak OE plastic unit, ensuring seamless functionality for the life of the radiator Increased cooling efficiency for high-performance and racing use Designed and tested by Turner Motorsport in collaboration with CSF Race

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Turner Motorsport - Corporate Logo
T#:43142739
Part#: 004443LA01
In Stock
Sale - Save 3% $ 604.99

This product was last offered at the strikethrough price on
06-14-2026

$ 586.84 USD
Free Shipping
Sale - Save 3%
$ 604.99

This product was last offered at the strikethrough price on
06-14-2026

$ 586.84 USD
Free Shipping

Track-tested and street-ready. the ULTIMATE cooling system upgrade for your N54 or N55!

Ditch your failure-prone plastic end tanks and increase cooling capacity by 25%, all without modifying your core support or accompanying shrouds. The CSFxTurner Performance Triple-Pass Radiator is the best cooling system upgrade for your N54/N55-equipped BMW!

The BMW 135i and 335i deliver serious performance straight from the factory, thanks to the twin-turbocharged N54 and single-turbo N55 engines. With strong midrange torque, high-revving capabilities, and proven tuning potential, these engines punch well above their weight. However, while the powertrain excels, the factory cooling system often falls short, especially under sustained boost or track conditions. Heat soak, rising coolant temps, and long-term thermal stress are common issues for enthusiasts pushing their N54 or N55 hard, making a performance radiator an essential upgrade for reliability and consistency.

Recognizing the critical need for increased cooling capacity, the team at Turner Motorsport partnered with CSF Race, world leaders in high-performance cooling systems with over 50 years of experience. The result is an Upgraded Performance Radiator: a high-performance, motorsport-grade upgrade engineered to keep your N54/N55 cooler and on the track for longer.

Design:

CSF-Exclusive "B-Tube" Technology
Unlike conventional "O-tube" designs, CSF’s patented "B-tube" structure increases wall strength while creating a more efficient flow path. This alone accounts for a 15% increase in cooling capacity over an OE "O-tube" radiator!
Dual Core Design
2-Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology
Two-Row Compact Structure
This radiator was designed with precise fitment in mind. While total tube count and size are increased, the overall radiator dimensions stay the same as OE, ensuring a drop-in fit with zero modifications required.
25% Increase in Cooling Capacity
All of the above design features translate to a massive 25% cooling increase over the stock radiator!
FEATURES & BENEFITS

Direct-fit upgrade, no modifications required!
Accepts all OEM attachments via CNC-machined "Quick-Connect" hose ends and accessory mounting provisions
TIG-welded aluminum construction provides increased durability
An all-aluminum drain plug replaces the weak OE plastic unit, ensuring seamless functionality for the life of the radiator
Increased cooling efficiency for high-performance and racing use
Aluminum drain plug
Designed and tested by Turner Motorsport in collaboration with CSF Race
Backed by the Turner Lifetime Replacement Program
Every unit features precision CNC-machined brackets and OE-style connections for a seamless, drop-in installation using factory or aftermarket hoses. Whether you're building a track weapon or a high-horsepower street car, this Turner x CSF radiator is the cooling solution your N54 or N55 needs to perform reliably under pressure. All backed by the Turner Lifetime Replacement Program.

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Nissens - Corporate Logo
T#:363985
Part#: 17117562079
In Stock
$ 174.52 USD
Free Shipping
$ 174.52 USD
Free Shipping
Fits both automatic and manual transmission BMWs! This radiator is made by Nissens, an original equipment supplier to BMW. The cooling system is a weak point on most BMWs, causing many BMWs to develop issues in as few as 50,000 miles. Overheating your engine can and usually will result in large repair bills and sometimes a warps the cylinder head(s), requiring intensive repair or full replacement. Prevent potential failure by replacing your radiator early, keeping your BMW happy and cool. This is the brand we use exclusively on our own BMWs, and think you should as well! As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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Nissens - Corporate Logo
T#:362222
Part#: 17119071519
In Stock
$ 173.39

This product was last offered at the strikethrough price on
06-02-2026

$ 166.36 USD
Free Shipping
$ 166.36 USD
Free Shipping

The cooling system is a weak point on any E46. Many cars develop issues in as few as 50,000 miles.

Overheating an inline 6 engine almost always results in large repair bill, and sometimes a warped cylinder head.

Replace yours with a high-quality OEM Nissens radiator to prevent further issues and potential overheating.

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Nissens - Corporate Logo
T#:583907
Part#: 17111468546
In Stock
$ 304.82

This product was last offered at the strikethrough price on
06-08-2026

$ 270.99 USD
Limited Qty Sale
Free Shipping
$ 304.82

This product was last offered at the strikethrough price on
06-08-2026

$ 270.99 USD
Limited Qty Sale
Free Shipping

Nissens - Corporate Logo
T#:381279
Part#: 17117618807
In Stock
$ 217.99

This product was last offered at the strikethrough price on
04-21-2026

$ 191.99 USD
Free Shipping
$ 191.99 USD
Free Shipping

Ensure optimal engine cooling performance for your BMW N20 2.0L & N55 3.0L Engines with Turner Motorsport's Nissens Radiator. Designed to withstand the demands of high-performance engines, this replacement radiator from Nissens ensures efficient heat dissipation, keeping your engine at an optimal operating temperature. With a direct fit for easy installation, this radiator is the perfect solution to keep your BMW running smoothly.

  • Direct replacement for BMW N20 2.0L & N55 3.0L Engines
  • Ensures efficient heat dissipation for optimal engine cooling
  • High-quality construction for durability and reliability
  • Easy installation with direct fit design
  • Maintains engine performance and longevity
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Nissens - Corporate Logo
T#:641058
Part#: 17118476010
Ships in 1 Business Day
$ 746.87 USD
Free Shipping
$ 746.87 USD
Free Shipping
This radiator is made by Nissens, an original equipment supplier to BMW. The cooling system is a weak point on most BMWs, causing many BMWs to develop issues in as few as 50,000 miles. Overheating your engine can and usually will result in large repair bills and sometimes a warps the cylinder head(s), requiring intensive repair or full replacement. Prevent potential failure by replacing your radiator early, keeping your BMW happy and cool. This is the brand we use exclusively on our own BMWs, and think you should as well! As a leading source of high-performance BMW parts and accessories since 1993, we at Turner Motorsport are honored to be the go-to supplier for tens of thousands of enthusiasts the world over. With over two decades of parts, service, and racing experience under our belt, we provide only quality performance and replacement parts. All of our performance parts are those we would (and do!) install and run on our own cars, as well as replacement parts that are Genuine BMW or from OEM manufacturers. We only offer parts we know you can trust to perform!
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Nissens - Corporate Logo
T#:585074
Part#: 17111469179
Ships in 6 Business Days
$ 233.99 USD
Free Shipping
$ 233.99 USD
Free Shipping
Standard replacement radiator.

Nissens - Corporate Logo
T#:592144
Part#: 17117794488
Ships in 1 Business Day
$ 326.99

This product was last offered at the strikethrough price on
05-07-2026

$ 289.99 USD
Free Shipping
$ 289.99 USD
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More than likely, you are going to replace the radiator in your vehicle at least once. The joints where the cores meet the end tanks tend to get weak and are the first place to spring a leak. Impacts to the fins themselves can cause holes to form. Corrosion and clogging from the inside can make cooling less than effective and compromise coolant flow. Replace your leaking unit with a factory replacement and get that jug of coolant out of your back seat.
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Nissens - Corporate Logo
T#:592130
Part#: 17117541092
Ships in 1 Business Day
$ 225.99

This product was last offered at the strikethrough price on
05-07-2026

$ 219.99 USD
Free Shipping
$ 219.99 USD
Free Shipping
Genuine MINI - Corporate Logo
T#:15076
Part#: 17112751276
Ships in 3 Business Days
15% off MSRP $ 341.97

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 288.99 USD
Free Shipping
15% off MSRP
$ 341.97

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 288.99 USD
Free Shipping
Genuine MINI RADIATOR
Fits BMW Engines including:
N14,N18



Genuine MINI - Corporate Logo
T#:202109
Part#: 17117617638
Ships in 3 Business Days
4% off MSRP $ 733.14

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 702.98 USD
Free Shipping
4% off MSRP
$ 733.14

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 702.98 USD
Free Shipping
Genuine MINI Radiator - 17117617638
Genuine MINI - Corporate Logo
T#:526961
Part#: 17117617640
Ships in 3 Business Days
6% off MSRP $ 743.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 702.99 USD
Free Shipping
6% off MSRP
$ 743.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 702.99 USD
Free Shipping
Nissens - Corporate Logo
T#:384279
Part#: 17113403551
Ships in 1 day
$ 273.99

This product was last offered at the strikethrough price on
05-07-2026

$ 265.99 USD
Free Shipping
$ 265.99 USD
Free Shipping
For vehicles with manual transmission

Genuine MINI - Corporate Logo
T#:534073
Part#: 17117617636
Ships in 3 Business Days
9% off MSRP $ 614.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 561.99 USD
Free Shipping
9% off MSRP
$ 614.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 561.99 USD
Free Shipping

Genuine MINI - Corporate Logo
T#:545152
Part#: 64539271207
Ships in 3 Business Days
8% off MSRP $ 713.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 654.99 USD
Free Shipping
8% off MSRP
$ 713.99

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 654.99 USD
Free Shipping