Description
As Gen 1 B58-powered BMWs in the F2X and F3X chassis continue to grow in popularity with tuners and enthusiasts, addressing factory cooling limitations is more important than ever. The CSF 7089 High-Performance Radiator is built for drivers pushing their BMWs on the street or the track—offering a bulletproof, drop-in replacement that delivers significantly improved heat management and long-term reliability.
Superior Cooling Performance for the Gen 1 B58 Engine
Developed using input from professional race teams, CSF’s all-aluminum radiator delivers a 20–25% increase in heat transfer efficiency compared to stock. Whether you’re running a high-boost tune, upgraded turbos, or simply want to avoid heat soak on long drives or track days, this radiator is the ultimate upgrade for your F-Chassis BMW.
Key Performance & Design Features
- 42mm 2-Row High-Efficiency Core
- 5mm Multi-Louvered Fins – Enhanced surface area for maximum cooling
- CSF’s Exclusive B-Tube Technology – 15% more efficient than standard tubes
- 100% TIG-Welded All-Aluminum Construction – No plastic tanks or weak points
- OEM Fitment – CNC-machined mounting brackets and OE-style fittings
- Plug-and-Play Install – No cutting, trimming, or fabrication required
- Leak & Pressure Tested – Each unit individually verified
- Hand Brushed Satin Finish – Premium, race-inspired appearance
CSF vs OEM Radiator Comparison
| Feature | CSF Radiator | OEM Radiator |
|---|---|---|
| Core Rows | 2 | 1 |
| Core Thickness | 42mm | 34mm |
| Cooling Tubes | 67 | 76 |
| Cooling Fin Rows | 68 | 77 |
| Fin Height | 5mm | 4.5mm |
| Core Material | Aluminum | Aluminum |
| Tank Material | Aluminum | Plastic |
| Construction | TIG-Welded | Crimped/Gasket |
The 5mm Fin Advantage Originally developed with 6.5mm fins, CSF finalized production with its latest 5mm fin technology for increased surface contact, higher thermal transfer, and better airflow retention under high-speed or high-load conditions.
Built to Last This radiator isn’t just for performance—it’s for peace of mind. The fully aluminum construction is significantly more durable than OEM plastic designs that degrade over time, crack, or fail under pressure.
CSF 7089 Radiator Includes
- CSF High-Performance Radiator
- CNC Machined Mounting Hardware (pre-installed)
- Two-Year Limited Warranty
Fitment Guide
Vehicle Compatibility (Gen 1 B58):
- 2016–2019 BMW F30/F31 340i (including xDrive)
- 2017–2020 BMW F32/F33/F36 440i (including xDrive)
- 2017–2021 BMW F22/F23 M240i (including xDrive)
- 2016–2019 BMW F20/F21 M140i (including xDrive)
- 2017–2019 BMW F30/F31 330i with M Sport Package (including xDrive)
- 2017–2020 BMW F32/F33/F36 430i with M Sport Package (including xDrive)
- 2017–2020 BMW F22/F23 230i with M Sport Package (including xDrive)
OEM Part Replaces:
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BMW OEM Part Number: 17118482623
Note: Will work with both factory and most aftermarket heat exchangers.
