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mountune Triple Pass Radiator Upgrade 2014-2019 Fiesta ST

$ 579.00
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IN STOCK !!! as of 9/3/2024

Mountune has teamed up with global cooling experts CSF to offer the ultimate cooling solution for the Fiesta ST. This new high performance, all-aluminum, triple-pass radiator has been tested and validated over thousands of miles in high powered eco-boost applications, as well as proven on the track in the most demanding conditions. The new Mountune Fiesta ST radiator features CSF’s exclusive B-Tube technology as well as an ultra efficient multi-louvered fin configuration for maximum surface area contact and heat dissipation. Additionally, the Triple-pass flow structure allows the coolant to flow across the core of the radiator 3 times before exiting the radiator for the lowest outlet temperatures possible. 


The collaboration between Mountune and CSF has resulted in an industry leading radiator that has been designed and engineered to be a complete drop-in fit. All original mounting brackets have been CNC machined for the purpose of allowing the original fan assembly to bolt on without hassle, and the new core to easily drop in place without any modifications required during install. 

Once the OEM radiator’s performance is maxed out and coolant temperatures rise, the vehicles protection system activates “limp mode”, reducing engine performance and power. This situation is a typical occurrence during track days and sustained high speed use. The Mountune high performance triple-pass radiator upgrade maintains and stabilizes outlet temperatures for constant and consistent performance throughout a wide range of demanding driving conditions. Significantly reducing the risk of power loss while protecting your engine when it’s needed most. 

  • Superior performance
  • Easy installation, bolt on performance
  • Triple pass and B-Tube Technology
  • Track tested
  • Engineered to perform on stock and modified cars
  • Compatible with original fan, no need for clumsy unreliable aftermarket fans
  • Track and big turbo proven

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C
Chris Deleon
Just works

Never worry about temps again. Keeps my fiesta at 187-192F in 100-degree weather with the A/C ON.

L
Luis Magana
Super Fast

Solid product and even faster shipping it’s very rare for that to happen these days with standard shipping. My radiator showed up in perfect condition and the box it came in was also in pristine condition. Radiator was a pretty easy install no problems at all. 10/10 would recommend purchasing from whoosh.

a
alan otto
Great radiator

Super easy install, everything fit great. No issues. Except, tha stupid plastic bleeder thing on the factory radiator. My car had 100,000 miles and as soon as I touched the bleeder it fell apart making it so my car was down for 3 days until I could get a new one. Save yourself the hassle and disappointment and pick up a shiny new bleeder with any radiator you pick up. https://whoosh-motorsports.myshopify.com/collections/all-fiesta-parts/products/2014-2019-fiesta-st-ford-oem-radiator-plug-bleed