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  See more parts for Subaru Crosstrek
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CSF All-Aluminum Radiator for 08-14 Subaru WRX & STI with Built-in Oil Cooler - 7042O
CSF All-Aluminum Radiator for 08-14 Subaru WRX & STI with Built-in Oil Cooler - 7042O - Image 4 CSF All-Aluminum Radiator for 08-14 Subaru WRX & STI with Built-in Oil Cooler - 7042O - Image 2 CSF All-Aluminum Radiator for 08-14 Subaru WRX & STI with Built-in Oil Cooler - 7042O - Image 3 CSF All-Aluminum Radiator for 08-14 Subaru WRX & STI with Built-in Oil Cooler - 7042O - Image 4

CSF High-Performance All-Aluminum Radiator for 2008-2021 Subaru WRX & STI

When it comes to keeping your Subaru WRX or STI running cool under pressure, the CSF 7042O High-Performance All-Aluminum Radiator is a game-changer. With over 50 years of expertise, CSF knows how to deliver a radiator that performs both on the street and the track. This isn't just an upgrade; it's an essential component for any enthusiast looking to maximize their engine's cooling efficiency, especially for high horsepower builds or dedicated race vehicles.

Why Choose CSF's 7042O Radiator?

This radiator features a robust 2-Row 42mm Core utilizing CSF's exclusive B-Tube Technology. Unlike traditional oval "O" type tubes, the B-tubes are engineered for enhanced performance. This design allows for:

  • Increased heat transfer surface area by approximately 15%, which means better cooling efficiency.
  • Stronger construction using thinner, lighter aluminum, making it both durable and efficient.
  • Dual liquid laminar flow for optimized cooling.

Performance Features

Engineered with precision, the CSF radiator also boasts ultra-efficient multi-louvered fins that are meticulously aligned to maximize airflow through the core. Each fin is designed and tested in CSF's wind-tunnel lab to ensure maximum heat rejection efficiency, giving you peace of mind whether you're cruising or racing.

Fitment and Installation

The CSF 7042O is a true drop-in fit for your 2008-2021 Subaru WRX and STI, meaning no modifications are required for installation. The OE-style brackets are CNC machined and welded to ensure durability, while the inlet and outlet connections are designed to match your factory setup, allowing you to reuse your OEM hoses or aftermarket options.

Technical Specifications

  • Inlet Diameter: 1.5625 in.
  • Inlet Location: Top Center
  • Outlet Diameter: 1.5625 in.
  • Outlet Location: Bottom Left
  • Core Height: 13.375 in.
  • Core Width: 27 in.
  • Core Thickness: 1.625 in.
  • Core Material: Aluminum
  • Core Row Quantity: 2
  • Finish: Polished
  • Internal Engine Oil Cooler: Yes
  • Radiator Cap Included: Yes
  • Grade Type: Performance

Customer Feedback

Subaru WRX owners have reported significant improvements in cooling performance after installing the CSF 7042O. One owner noted, "After swapping out my stock radiator for the CSF, I noticed my temps drop significantly during spirited drives. Perfect fit with no hassle during installation!"

Products Fitment

This radiator is compatible with the following models:

  • Subaru Crosstrek 2016-2017
  • Subaru Forester 2009-2013
  • Subaru Impreza 2012-2016
  • Subaru Legacy 2005-2009
  • Subaru Outback 2005-2009
  • Subaru STI 2008-2021
  • Subaru WRX 2008-2021

Upgrade your WRX or STI with the CSF 7042O radiator and experience the difference in performance and reliability.

Other Part Numbers:
CSF Radiators #csf7042O

Proposition 65

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

Vehicle Make/Model
Subaru Crosstrek 2016 Hybrid Touring
Subaru Crosstrek 2016-2017 Sport
Subaru Crosstrek 2016-2017 Premium
Subaru Crosstrek 2016-2017 Limited
Subaru Crosstrek 2016-2017 Touring
Subaru Crosstrek 2016-2017 Base
Subaru Crosstrek 2016 Hybrid
Subaru Forester 2009-2013 X Premium
Subaru Forester 2009-2013 X Limited
Subaru Forester 2009-2013 X
Subaru Forester 2009-2012 XSL
Subaru Forester 2009-2013 X Touring
Subaru Forester 2009-2012 XS
Subaru Forester 2013 X Convenience
Subaru Impreza 2008-2014 WRX
Subaru Impreza 2008-2014 WRX STI
Subaru Impreza 2009-2014 WRX Premium
Subaru Impreza 2010 WRX STI Special Edition
Subaru Impreza 2010 WRX GT
Subaru Impreza 2010 WRX SE
Subaru Impreza 2010-2014 WRX Limited
Subaru Impreza 2011-2014 WRX STI Limited
Subaru Impreza 2012-2015 Sport
Subaru Impreza 2012-2016 Touring
Subaru Impreza 2012-2016 Premium
Subaru Impreza 2012-2016 Limited
Subaru Impreza 2012 R
Subaru Impreza 2012-2016 Base
Subaru Impreza 2012-2016 Sport Premium
Subaru Impreza 2012-2016 Sport Limited
Subaru Impreza 2013-2016 I Sport
Subaru Impreza 2013-2016 i
Subaru Impreza 2014-2016 I Limited
Subaru Legacy 2005-2008 GT
Subaru Legacy 2005, 2008 Limited
Subaru Legacy 2005, 2007-2009 GT Limited
Subaru Legacy 2005 i
Subaru Legacy 2006-2009 2.5i Limited
Subaru Legacy 2006-2009 2.5i
Subaru Legacy 2006-2009 GT spec.B
Subaru Legacy 2007-2009 2.5i Special Edition
Subaru Legacy 2008 3.0
Subaru Legacy 2008 Touring
Subaru Legacy 2008 2.0
Subaru Legacy 2008-2009 3.0 R Limited
Subaru Legacy 2009 3.0 R Premier
Subaru Legacy 2009 Base
Subaru Legacy 2009 2.5i Touring
Subaru Legacy 2009 2.0R
Subaru Legacy 2009 3.0 R
Subaru Outback 2005 VDC Limited
Subaru Outback 2005-2006 R
Subaru Outback 2005 i
Subaru Outback 2005-2009 XT Limited
Subaru Outback 2005-2008 R L.L. Bean Edition
Subaru Outback 2005-2008 XT
Subaru Outback 2005, 2008 Limited
Subaru Outback 2006-2009 2.5i
Subaru Outback 2006 R VDC Limited
Subaru Outback 2006-2009 2.5i Limited
Subaru Outback 2007 2.5i Basic
Subaru Outback 2007-2008 3.0 R
Subaru Outback 2008 2.5i L.L. Bean Edition
Subaru Outback 2008 2.5i Limited L.L. Bean Edition
Subaru Outback 2008 Premier
Subaru Outback 2008 Touring
Subaru Outback 2008 Base
Subaru Outback 2008 2.5 XT
Subaru Outback 2009 3.0 R Limited
Subaru Outback 2009 3.0 R Premier
Subaru Outback 2009 2.5i Special Edition
Subaru WRX 2012-2021 Base
Subaru WRX 2012-2016 STI
Subaru WRX 2013-2021 Limited
Subaru WRX 2014 SE
Subaru WRX 2015-2021 Premium
Subaru WRX 2017-2021 Sport
Subaru WRX 2017-2021 Sport-tech
Subaru WRX 2018-2021 6 Man
Subaru WRX 2018-2021 CVT
Subaru WRX 2019 Raui Edition
Subaru WRX 2019-2020 Sport-tech RS
Subaru WRX 2021 EyeSight
Subaru WRX STI 2013-2021 Base
Subaru WRX STI 2013-2014, 2017-2021 Sport-tech
Subaru WRX STI 2014 Tsurugi Edition
Subaru WRX STI 2015-2021 Limited
Subaru WRX STI 2015 Launch Edition
Subaru WRX STI 2016 Series.HyperBlue
Subaru WRX STI 2017-2021 Sport
Subaru WRX STI 2018-2021 STI
Subaru WRX STI 2018 Type RA
Subaru WRX STI 2019 S209
Subaru WRX STI 2020 Kanrai Edition
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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