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  See more parts for BMW 135i
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CSF All-Aluminum Radiator for BMW E82 1M, E8X 135i, E9X 335i, E89 Z4 (2007-2013) - 7046

CSF Radiators Part Number: 7046

When it comes to keeping your BMW running smoothly, the CSF Radiators 7046 is a strong contender. With over 50 years of experience in radiator manufacturing, CSF has crafted this all-aluminum radiator specifically for high-performance applications. It's designed to fit models like the BMW E82 1M, E8X 135i, E9X 335i, and E89 Z4, ensuring that your engine stays cool whether you’re cruising on the street or pushing your limits on the track.

Features and Benefits

  • 2-Row 42mm Core featuring CSF's Exclusive B-Tube Technology for enhanced cooling efficiency.
  • Ultra-efficient multi-louvered fins with a 6.5mm fin height, maximizing airflow and heat dissipation.
  • CNC machined "Quick-Connect" inlet and outlet connections for easy installation.
  • Durable CNC machined brackets and fittings that provide a secure and long-lasting fit.
  • All-aluminum construction with a smooth satin finish, ensuring both durability and aesthetic appeal.
  • Drop-in fit design that requires no modifications for installation.

Technical Specifications

  • Coolant Hose Inlet Connection Type: OE Type Connection
  • Coolant Hose Outlet Connection Type: OE Type Connection
  • Core Height: 23.625 in.
  • Core Material: Aluminum
  • Core Row Quantity: 2
  • Core Thickness: 1.625 in.
  • Core Width: 13.625 in.
  • Down Flow or Cross Flow Type: Cross Flow
  • Finish/Color: Satin
  • Inlet Diameter: 1.5 in.
  • Inlet Location: Top Right
  • Outlet Diameter: 1.5 in.
  • Outlet Location: Bottom Left
  • Internal Transmission Oil Cooler: Yes

Customer Feedback

Many customers have noted the impressive cooling performance of the CSF 7046 radiator. One user mentioned, "After installing this radiator, I noticed a significant drop in engine temperatures during track days. It fits perfectly and was easy to install." Another added, "I've had issues with overheating in the past, but this radiator has kept my 335i running cool even in the summer heat." It seems that CSF has successfully delivered a reliable solution for those who demand more from their cooling systems.

Proposition 65

⚠ WARNING: Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Vehicle Make/Model
BMW 135i 2008-2013 Base
BMW 135i 2012-2013 M Sport
BMW 135is 2013 Base
BMW 335i 2007-2013 Base
BMW 335i 2008-2010, 2012-2013 M Sport
BMW 335i 2012-2013 Sport
BMW 335i 2012-2013 Luxury
BMW 335i 2012-2013 Modern
BMW 335i 2012-2013 Exclusive
BMW 335i xDrive 2009-2013 Base
BMW 335is 2011-2013 Base
BMW 335xi 2007-2008 Base
BMW X1 2013-2014 sDrive20i
BMW X1 2013 xDrive28i Top Line
BMW X1 2013 sDrive28i Sport Line
BMW X1 2013 sDrive20i M Sport
BMW X1 2013-2015 xDrive35i
BMW X1 2013-2015 xDrive28i
BMW X1 2013-2015 sDrive28i
BMW X1 2013 xDrive28i M Sport
BMW X1 2013 sDrive28i X Line
BMW X1 2013-2014 sDrive20i X Line
BMW X1 2014 xDrive28i Sport Line
BMW X1 2014 Business
BMW X1 2014 xDrive28i X Line
BMW X1 2014 sDrive20i Sport
BMW X1 2015 sDrive20iA
BMW X1 2015 Sport Line
BMW X1 2015 X Line
BMW Z4 2009-2016 sDrive35i
BMW Z4 2009-2010 3.0si
BMW Z4 2009-2010 2.5si
BMW Z4 2009-2011 sDrive30i
BMW Z4 2011-2016 sDrive35is
BMW Z4 2011 sDrive23i
BMW Z4 2012-2013 sDrive20i
BMW Z4 2012-2016 sDrive28i
BMW Z4 2014, 2016 sDrive18i
BMW Z4 2014 sDrive35i Pure Traction
BMW Z4 2014-2016 Design Pure Traction
BMW Z4 2014-2016 M Sport
BMW Z4 2015 sDrive18iA
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Ford F-150 2025 XLT
Ford F-150 2025 SSV
Ford F-150 2025 STX
Ford F-150 2025 Platinum
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CSF Radiator

Anyone who needs a new radiator should consider buying a CSF radiator. A CSF radiator and CSF cooling system offers the best performance for driving and racing enthusiasts. If you have a faulty radiator or are looking to upgrade to a high-performance radiator, a CSF radiator will get the job done. 

What is a CSF Radiator?

During the last 40 years, CSF has manufactured over 10,000 different models of radiators, oil coolers, heat exchangers and condensers for Automotive, Truck, Industrial and Marine applications. Today, their products are sold in over 60 countries throughout the world. Their US Aftermarket Division stocks over 1000 models that cover over 2100 applications for all popular Import vehicles.

CSF supplies radiators and condensers that are designed to meet or exceed original equipment (OE) engineering specifications. Their plants meet ISO 9000 standards and provide parts to OE manufacturers, and to top it all off - check out their industry leading warranty. Simply put, you cannot buy, sell, install or own a better value radiator or condenser.

Why Should I Buy a CSF Radiator? 

A CSF radiator offers a number of benefits over the competition. Below, we explain the main reasons why you should buy a CSF radiator.

A Market Leader for over 45 Years

CSF has been a market leader for over 45 years, as the company was initially established in 1975 and have been selling CSF radiators ever since. Over time, a CSF radiator has become known for its innovative design and impeccable quality.

High-Quality Radiator Testing

Every single CSF radiator and CSF cooling system has been put through a rigorous series of tests to make sure every system is reliable and performs at a high level. In their testing lab, CSF puts in the time to make sure every product works perfectly. 

Cutting-Edge Technology

Each CSF radiator uses cutting-edge technology to bring customers the best CSF full cooling system possible. CSF racing radiators combine a high-efficiency core, advanced endtank designs, and innovative design and engineering to give our customers the most advanced and efficient radiator possible.  

Get a CSF Radiator or CSF Cooling System From Vivid Racing 

Vivid Racing carries a wide selection of CSF radiator products, including CSF cooling systems and other accessories. If you are interested in learning more or would like to purchase a CSF radiator, please contact Vivid Racing today by calling (480) 966-3040.

CSF takes pride in the quality of its products and offers one of the best warranty’s in the industry. Please refer to the CSF warranty card in the shipping carton for details.

CSF warranty is applicable only to the original owner of the vehicle. Original paper work verifying the proof of purchase and pre-installation cooling system checklist signed by the professional installer is required to process warranty claims.

All warranty claims should be directed to the point of purchase. Due to CSF’s established agreements with Authorized CSF Warehouse Distributors, CSF is unable to handle and/or process warranty related calls/inquires from any individuals – all inquires/warranty related claims should be directed to the point of purchase or an authorized warehouse distributor.

Take care of your radiator, as under circumstances listed below the warranty will be void.

If the radiator is installed and is returned deformed (bulging tanks, warped core etc.), this is an indication that the radiator is the victim of some other problem and not the cause. The deformation is a result of the radiator being subjected to extremely high pressure and or temperature caused by any of the following reasons:Defective Pressure Cap, Defective Head Gasket, Defective Temperature gauge (incorrect readings), Defective Water Pump etc. Such units are not covered under the warranty.

If a radiator seems to have a “fit problem” there is the possibility that there is some confusion about a multi-fit radiator that might look different. Your nearest CSF WD can clarify the application, just give them a call. A perceived fit problem is not covered under warranty.

If a unit is damaged in shipping, please file a claim with the carrier. Damages caused during shipping, installation or handling are not covered under warranty.

Any repairs or alterations to the unit will automatically void the warranty.

Any form of abuse, including the use of improper coolant mixtures, damage caused by steam, corrosion etc and use on commercial vehicles voids the warranty. It is the vehicle owners’ responsibility to maintain the cooling system as specified in the owners manual.

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