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HomeShopRadiatorsCSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard – Black
Sale
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 2
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 3
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 4
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 5
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 6
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 7
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 8
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 9
CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard - Black - Image 10

CSF BMW B58/B48 Front Mount Triple-Pass Heat Exchanger with Rock Guard – Black

SKU: 8131B

Original price was: $699.00.Current price is: $649.00.

In stock

7 in stock

The original OEM B58 heat exchanger is a 1-row unit that is 27mm thick. In comparison, CSF has used its industry-exclusive world's largest 2-row core (68mm) with CSF's B-Tube technology. A unique tank design allows the larger CSF core to still fit into the OEM cooling system housing. Another critical feature of the CSF BMW B58 high-performance heat exchanger is its unique triple-pass flow design. The water traveling through the upgraded heat exchanger flows through the radiator three times before exiting the cooler and flowing back into the manifold charge cooler. This ensures that the outlet water temperature of the heat exchanger is the absolute lowest it can be. The OEM design, as well as more expensive aftermarket designs, all have single-pass flow structures. Significantly reduce Intake Air Temperatures (IAT) for Maximum Performance (with Faster Heat Soak Recovery) on your B58/B48 Powered BMW with a CSF Heat Exchangers. The CSF #8131B Cooling product is designed to be a "Drop-In Fit" application. The product will install in the OEM Location with no modifications necessary unless otherwise noted or instructions are included in the product package. Please see the manufacturer repair manual for standard installation instructions. If you do not feel confident installing this product CSF recommends taking it to a qualified installation facility.
  • Direct Plug-and-Play Design, Including CNC Machined "Quick Connect" Inlet/Outlet Water Fittings
  • 68mm 2-Row Core with CSF's B-Tube Technology (World's Largest 2-Row Core)
  • OEM CNC Machined Mounting Location Pins and Brackets
  • Core Size: 524mm Length x 478mm Height x 69mm Wide
  • Replaces OEM Part Number: 17118741830
  • No Modifications Needed to Install
  • 6.5mm Multi-Louvered Fin Height
  • Included Detachable Rock Guard
  • Triple-Pass Flow Design
  • Semi-Gloss Black Finish
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Description

Enhance your BMW’s cooling performance with the CSF #8131B high-performance heat exchanger designed specifically for B58 and B48 engines. This OEM-style replacement features a robust 68mm 2-row core utilizing CSF’s exclusive B-Tube technology, offering the industry’s largest 2-row core for maximum heat dissipation. Its unique tank design ensures a seamless fit within the OEM cooling system housing, providing a straightforward installation without modifications. The triple-pass flow design directs coolant through the radiator three times before returning to the engine, significantly lowering intake air temperatures (IAT) and improving overall engine performance. This advanced flow structure promotes faster heat soak recovery, ideal for high-performance applications and demanding driving conditions. Constructed with a semi-gloss black finish, the CSF heat exchanger is built for durability and aesthetic appeal. It includes CNC-machined quick-connect fittings, OEM mounting pins, and brackets for an easy, plug-and-play installation that aligns perfectly with the OEM mounting points. The product also features a detachable rock guard for added protection and a 6.5mm multi-louvered fin height to maximize heat transfer efficiency. Designed as a direct replacement for OEM part number 17118741830, this heat exchanger is suitable for a range of BMW models including 2016–2018 340i, 440i, and M240i variants, among others. Whether you’re upgrading for performance or replacing a worn unit, the CSF B58/B48 heat exchanger provides reliable, high-quality cooling enhancement for your vehicle.

Features:

  • Direct plug-and-play design with CNC-machined quick connect fittings
  • 68mm 2-row core with CSF’s B-Tube technology, the industry’s largest
  • OEM CNC-machined mounting pins and brackets for easy installation
  • Triple-pass flow design to optimize coolant flow and reduce IAT
  • Includes detachable rock guard for added protection
  • Semi-gloss black finish for durability and aesthetics
  • Replaces OEM part number 17118741830
  • Designed for seamless fit in OEM cooling system housing

Fitment:
BMW 230i Base 2017
BMW 230i Base 2018
BMW 230i Base 2019
BMW 230i Base 2020
BMW 230i Base 2021
BMW 230i xDrive Base 2017
BMW 230i xDrive Base 2018
BMW 230i xDrive Base 2019
BMW 230i xDrive Base 2020
BMW 230i xDrive Base 2021
BMW 320i Base 2014
BMW 320i Base 2015
BMW 320i Base 2016
BMW 320i Base 2017
BMW 320i Base 2018
BMW 330e Base 2016
BMW 330e Base 2018
BMW 330e iPerformance 2017
BMW 330i Base 2017
BMW 330i Base 2018
BMW 330i GT xDrive Base 2017
BMW 330i GT xDrive Base 2018
BMW 330i xDrive Base 2017
BMW 330i xDrive Base 2018
BMW 330i xDrive Base 2019
BMW 340i Base 2016
BMW 340i Base 2017
BMW 340i Base 2018
BMW 340i GT xDrive Base 2017
BMW 340i GT xDrive Base 2018
BMW 340i GT xDrive Base 2019
BMW 340i xDrive Base 2016
BMW 340i xDrive Base 2017
BMW 340i xDrive Base 2018
BMW 430i Base 2017
BMW 430i Base 2018
BMW 430i Base 2019
BMW 430i Base 2020
BMW 430i xDrive Base 2017
BMW 430i xDrive Base 2018
BMW 430i xDrive Base 2019
BMW 430i xDrive Base 2020
BMW 430i xDrive Gran Coupe Base 2017
BMW 430i xDrive Gran Coupe Base 2018
BMW 430i xDrive Gran Coupe Base 2019
BMW 430i xDrive Gran Coupe Base 2020
BMW 440i Base 2017
BMW 440i Base 2018
BMW 440i Base 2019
BMW 440i Base 2020
BMW 440i Gran Coupe Base 2017
BMW 440i Gran Coupe Base 2018
BMW 440i Gran Coupe Base 2019
BMW 440i Gran Coupe Base 2020
BMW 440i xDrive Base 2017
BMW 440i xDrive Base 2018
BMW 440i xDrive Base 2019
BMW 440i xDrive Base 2020
BMW 440i xDrive Gran Coupe Base 2017
BMW 440i xDrive Gran Coupe Base 2018
BMW 440i xDrive Gran Coupe Base 2019
BMW 440i xDrive Gran Coupe Base 2020
BMW M240i Base 2017
BMW M240i Base 2018
BMW M240i Base 2019
BMW M240i Base 2020
BMW M240i Base 2021
BMW M240i xDrive Base 2017
BMW M240i xDrive Base 2018
BMW M240i xDrive Base 2019
BMW M240i xDrive Base 2020
BMW M240i xDrive Base 2021

Additional information

Weight 19.7 lbs
Dimensions 29.7 × 22.1 × 8.5 in
air_freight_prohibited

false
not_carb_approved

false
ltl_freight_required

false
prop_65

N
part_type

automotive
epa

N/A
carb_acknowledgement_required

false
regular_stock

t
upc

71035308131B
brand

CSF
part_number

8131B

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