SKU: 23974453884

CSF BMS F-Chassis Gen 1 B58 High Performance All-Aluminum Radiator

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Description

CSF BMS F-Chassis Gen 1 B58 High Performance All-Aluminum RadiatorProduct Details: CSF BMS F Chassis Gen 1 B58 High Performance All Aluminum Radiator Overview: As Gen 1 B58 powered BMWs in the F3X and F2X platforms have racked up miles and dropped in price, theyve become go to choices for tuners, track day enthusiasts, and weekend warriors alike. With aging factory components and a growing number of owners modifying these cars, demand for motorsport grade performance parts has surged. For those looking to push their

Product Details: CSF BMS F-Chassis Gen 1 B58 High Performance All-Aluminum Radiator

Overview:

As Gen 1 B58-powered BMWs in the F3X and F2X platforms have racked up miles and dropped in price, they’ve become go-to choices for tuners, track-day enthusiasts, and weekend warriors alike. With aging factory components and a growing number of owners modifying these cars, demand for motorsport-grade performance parts has surged. For those looking to push their Gen 1 B58 to the limit, upgrading the cooling system has quickly become a top priority.

CSF, the industry leader in high-performance BMW cooling, is the top choice for F3X and F2X owners who want more than just OEM reliability. Whether you’re building a serious track machine or simply want a bulletproof upgrade, the new CSF High-Performance Radiator delivers unmatched durability and cooling efficiency for your Gen 1 B58 BMW.

  • 2-Row – 42mm Ultra-High-Performance Core
  • Cooling Tubes with CSF’s Exclusive B-Tube Technology
  • New 5mm Tall Ultra Efficient Fins with a Multi-Louvered Design for Maximum Surface Area Contact
  • CNC Machined Mounting Brackets and OEM Style Inlet/Outlet
  • 100% All Aluminum TIG-Welded Construction
  • Hand Brushed Satin Finish
  • True Plug-and-Play “Drop-in Fit” Installation Requires Absolutely No Modifications
  • Individually Leak and Pressure Tested
  • 2-Year Limited Warranty
  • Applications:
    • 2016-2019 BMW F3X 340i (incl. xDrive)
    • 2017-2020 BMW F3X 440i (incl. xDrive)
    • 2017-2021 BMW F2X M240i (incl. xDrive)
    • 2016-2019 BMW F2X M140i (incl. xDrive)
    • 2017-2019 BMW F3X 330i w/ M Sport Package (incl. xDrive)
    • 2017-2020 BMW F3X 430i w/ M Sport Package (incl. xDrive)
    • 2017-2020 BMW F2X 230i w/ M Sport Package (incl. xDrive)
  • OEM Part Numbers:
    • BMW: 17-11-8-482-623 / 17 11 8 482 623 / 17118482623

Design & Engineering

CSF has built a reputation for producing the best B58 cooling systems on the market. Backed by years of experience and input from customers, race teams, and development partners, CSF leads the industry in Gen 1 B58 cooling technology.

As more enthusiasts push the performance limits of F-Chassis BMWs, the factory radiator has started to show its age. Increased boost and upgraded turbos generate significantly more heat, and the stock system can struggle to keep up. Combined with the heat exchanger mounted in front of the radiator, engine coolant temps can get too hot, especially during track use which can trigger limp mode.

On top of that, OEM plastic radiators degrade over time. With clogged tubes, damaged fins, and a higher risk of cracked tanks or gasket failure, replacing the stock radiator becomes essential for long-term reliability and performance.

Key Design Features:

  • 20–25% increase in heat transfer efficiency using CSF’s exclusive 5mm fin technology
  • Improved cooling performance to support high-boost, big-turbo builds
  • All-aluminum construction for superior durability over OEM plastic tanks
  • Designed to work seamlessly with factory or aftermarket heat exchangers

Whether you’re building a street sleeper or prepping for your next track day, CSF’s Gen 1 B58 Radiator is engineered to handle the heat and then some.

CSF vs OEM

The original OE radiator from BMW is a plastic tank with a single row aluminum core design. While this is generally accepted as good quality and durable, there is always room for improvement. The 4.5mm fins on the OE radiator made the system fairly efficient for a factory unit. The core itself is one of the biggest limiting factors at only 34mm thick and a single cooling row.

The CSF radiator features the latest 5mm fin technology. These fins significantly increase the heat exchange surface area improving overall cooling efficiency and recovery while still maintaining good airflow. The core is much larger than the factory featuring 2-Row 42mm aluminum core. This both increases the fluid capacity of the radiator, and improves the cores ability to dissipate heat. CSF’s Exclusive B-Tube Technology increases the heat transfer by approximately 15% over regular oval welded tubes. In addition, the super-efficient multi-louvered fins maximize airflow through the core for the best possible performance.

The TIG-Welded 100% All Aluminum construction increases the overall strength of the radiator. This improves durability and longevity so you can be confident it will hold up to hard driving conditions. The CSF radiator mounts in the factory location and requires no modifications or cutting.

 

Shipping Notes
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 23974453884

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Melissa
Louisville, US
★★★★★ 5
Cute, Comfortable, Light-Weight Shoes, Perfect for School
Size: 11 Little Kid, Color: Pink/Lavender, Size: 11 Little Kid, Color: Pink/Lavender
These have turned out to be great everyday shoes for my 5 year old. She normally wears a size 10, but since that size wasn’t available, I ordered the 11 expecting her to grow into them. I was pleasantly surprised that they already fit her pretty well. There’s still a little extra room in the toe area, but the shoes fit securely around her ankles so they don’t feel loose or slip off while walking or playing. She says they’re very comfortable and loves how easy they are to slip on by herself. The lightweight design is nice for everyday wear, and they’ve held up well so far despite being worn almost daily. They've become her favorite shoes to wear! Also the pink/lavender color is really pretty in person. Overall, I’m very happy with them and would order again.
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Reviewed in the United States on May 13, 2026
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Amazon customer
West Palm Beach, US
★★★★★ 5
Great shoe well made
Size: 13 Little Kid, Color: Pink/Lavender, Size: 13 Little Kid, Color: Pink/Lavender
Really good shoes at a fair price. My daughter loves the pink and purple gradient colors. Really beautiful. Shoes have proven themselves very durable. She's been wearing these a few times a week for the last couple months and they still look new aside from some dirt stains. Fit perfectly. Very comfortable. This is always her first pick in the morning when she's getting dressed. Good breathability you can wear these in hot summer weather without sweaty feet. Versatile shoe looks good enough to wear out and about or exercise in.
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Reviewed in the United States on May 16, 2026
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Kevin Keegan
Port Orchard, US
★★★★★ 3
Runs large
Size: 7 Big Kid, Color: White
Runs very large.
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Reviewed in the United States on June 5, 2026
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Harele
San Leandro, US
★★★★★ 5
Great first sandals
Special Size Type: Toddler (1-4 Years), Size: 18-24 Months Toddler, Color: Matthew Navy
Great quality, they are super cute and fit my toddler well.
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Reviewed in the United States on July 3, 2025
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ABH1369
Lake Worth, US
★★★★★ 5
Amazing first shoes
Special Size Type: Toddler (1-4 Years), Size: 18-24 Months Toddler, Color: Matthew Navy
These are a fantastic in between option for after moccs and before hard sole shoes. Research shows that barefoot is best for foot development, but living in AZ the ground is way too hot for Moccs in the summer. These are a great compromise since we don’t want to use hard soles for as long as possible. Love this brand and these sandals are so cute!
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Reviewed in the United States on July 30, 2023

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