CSF Cooling - Racing & High Performance Division  |  SKU: CSF7058

CSF 00-06 BMW M3 (E46) Triple Pass Radiator

$61500
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CSF has over 5 decades of experience manufacturing radiators. So when it comes to keeping your engine cool and your E46 M3 running at its best, a CSF High-Performance All-Aluminum Radiator is the obvious choice. Designed to perform on the street or at the track, a performance radiator is a must-have for both high horsepower builds as well as race vehicles which need added cooling performance in motorsports environments. The Triple-Pass Flow Structure allows the coolant to flow across the core of the radiator three times before exiting for lowest outlet temperatures possible. This radiator features a 2-Row core with CSF's exclusive B-Tube Technology: Unlike a regular oval shape "O" type radiator tube, CSF uses a specially engineered tube in the shape of a "B". These "B-tubes" are carefully formed and then brazed over the seam to seal. CSF is able to use thinner and lighter aluminum material (with better cooling efficiency) because this design is actually stronger than normal "O" shape tubes that are welded. The design (inlet in the middle of the tube that is seam brazed) increases the heat transfer surface area of the tubes by approximately 15% over regular tubes - producing the efficiency of two smaller tubes vs. one large tube within the same space criteria. With "B-tubes" you are able to get "dual liquid laminar flow". CSF also uses ultra efficient multi louvered fins that are carefully and precisely aligned to maximize airflow through each radiator core. Fin specifications are carefully measured and calculated for each application, and tested for maximum heat rejection efficiency in our wind-tunnel lab.The CSF E46 M3 radiator is a true "Drop-in fit" design requiring no modifications to install. OE style brackets are all CNC machined and welded for the best durability possible. Inlet/Outlet connections are designed to match the OE connections so you can reuse OEM hoses or aftermarket.CSF manufactures the most advanced and efficient radiator in the industry for your E46 M3. CSF uses innovative tube and fin technologies with industry-leading testing methods to maximize airflow and heat dissipation.



  • 2 Row 42mm Core (Dual Core) Featuring CSF's Exclusive B-Tube Technology
  • Core Features an Ultra-Efficient Fin with 6.5mm Fin Height and Multi-Louvered Design for Maximum Surface Area Contact
  • Triple-Pass Flow Structure Allows the Coolant to Flow Across the Core of the Radiator 3 Times Before Exiting for Lowest Outlet Temperatures Possible
  • CNC Machined "Quick Connect" Inlet/Outlet Connections
  • CNC Machined Brackets and Fittings for Superb Fit and Durability
  • All-Aluminum Race Style Drain Plug
  • Smooth Satin Finish
  • Drop-in Fit
  • Replaces OEM Part Number: 17102228941



  • ADD-ON: 8032
  • Coolant Hose Inlet Connection Type: OE Type Connection
  • Coolant Hose Outlet Connection Type: OE Type Connection
  • Core Height: 22.9375 in.
  • Core Material: Aluminum
  • Core Row Quantity: 2
  • Core Thickness: 1.625 in.
  • Core Width: 15.3125 in.
  • Down Flow Or Cross Flow Type: Cross Flow
  • Finish/Color: Satin
  • Frame Included: No
  • Grade Type: Performance
  • Inlet Connector Type: Quick Connect
  • Inlet Diameter: 1.5 in.
  • Inlet Location: Top Right
  • Installation Type: Drop-In Fit Installation
  • Internal Engine Oil Cooler: No
  • Internal Transmission Oil Cooler: No
  • Mounting Hardware Included: No
  • Mounting Type: Mounts with OE Hardware
  • Outlet Connector Type: Quick Connect
  • Outlet Diameter: 1.5 in.
  • Outlet Location: Bottom Left
  • Prop 65 Yes/No: No
  • Radiator Cap Included: No
  • Tank Material: Aluminum
  • Thermostat Included: No
  • Title: BMW E46 M3 Triple Pass High-Performance All-Aluminum Radiator

 

Year Make Model Submodel
2001-2006 BMW M3 Base

Shipping & Returns

Product returns need to have express, written permission from us before a product can be returned. Products that have been installed on a machine, have the protective film removed, or otherwise used, cannot be returned. New product returns are subject to a 15% to 25% restocking fee and loss of outbound shipping. It is the responsibility of the buyer to ship back returns. Items returned need to have your original order number on the box next to the shipping label. NP Motorsports is not responsible and cannot accept returns that are damaged during return shipping.

NP Motorsports is not responsible for theft of a delivered package. Please act accordingly when selecting a shipping location.

If packaging of any returned item is not the same as how it was shipped out, NP Motorsports is not responsible for any additional damage occurred during return shipping.

Returns are handled on a case by case basis:

  •  The Product Arrived Damaged - NP Motorsports will pay to ship the product back to our facility and ship you an undamaged product. Damaged products must be reported within 3 days of receiving the item. NP Motorsports  requires pictures of damaged product to verify damage. Once damaged product has been verified, NP Motorsports will send a return label for product to be shipped back. 
  •  The Incorrect Product was Ordered - A 15% to 25% restocking fee is applied plus the customer is responsible for shipping the product back to us. The product must be unused with no signs of wear. We will be happy to assist you in ordering the correct product. 
  •  The Correct Product was Ordered, the customer changed their mind: A 15% to 25% restocking fee is applied plus the customer is responsible for shipping the product back to NP Motorsports. The Return address is different from shipping address, so the customer must reach out to NP Motorsports before shipping any part back. The product must be unused with no signs of wear, scratches, or debris. 
  •  The Product was used: If the product was used with any sign of wear, scratches, or dirt, we will not accept the return.

We do not accept returns after a part is used

Customers must contact us (sales@np-motorsports.com) within 30 days of the product being delivered for a return to be considered

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At NP Motorsports, our primary goal is to ensure your satisfaction by providing a wide range of automotive parts, services, and replacements. We are an ecommerce store that specializes in aftermarket car accessories, helping you stand out from the crowd and transform your vehicle into a head-turning machine.

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