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mountune Triple Pass Radiator Upgrade, Fiesta ST
Mountune Fiesta St Triple Pass Radiator Upgrade | Mountune

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Sale price:$499.00
Savings: $60.00

Availability: Usually Ships in 1 to 2 Days
Product Code: MP2521-12020-AA

Description Installation Guide

mountune Triple Pass Radiator Upgrade, Fiesta ST

Application: 2013-2019 Fiesta ST

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

Average Rating: Average Rating: 5 of 5 5 of 5 Total Reviews: 25 Write a review »

  0 of 0 people found the following review helpful:
5 of 5 Great radiator September 2, 2020
Reviewer: Ryan McMican from Hesperia, CA United States  
Received within 24 hours of order placement. Packaged well and showed up safe. Install isn’t the easiest but i did it by myself in about 2 hours. Wish they would have sent stickers and an extra bleed screw as the one from your old one is likely brittle and not reusable.

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  0 of 0 people found the following review helpful:
5 of 5 August 24, 2020
Reviewer: Jere Hinden from Strasburg, PA United States  

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  0 of 0 people found the following review helpful:
5 of 5 Stable temperatures, simple install. August 24, 2020
Reviewer: Matthew Merkey from Ashburn, VA United States  
I purchased this radiator mostly as insurance for the Summer, and so far it's performed as expected. Temperatures are a lot more stable under any driving scenario, and it's dealt with a couple of 85F+ days so far without the slightest hint of an issue. Must-have upgrade if you're driving your FiST in a hot climate, especially if it's tuned.

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  0 of 0 people found the following review helpful:
5 of 5 A must have July 3, 2020
Reviewer: James Lynch from Poway, CA United States  
Hands down the best mod you can do for your Fiesta ST. It just works. Temps before the upgrade would get high in warm weather. Now I rarely see anything over 200 degrees. Run the AC all you want, idle as long as you want, beat on it all you want. You'll be fine. Just buy it

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  0 of 0 people found the following review helpful:
5 of 5 Excellent upgrade decision June 29, 2020
Reviewer: William Schmidt from Prescott, AZ United States  
The extra capacity of this radiator upgrade is necessary in Arizona where temperatures can reach 115 degrees, especially when climbing from the lower altitudes around Phoenix to the 5500 ft of Prescott. It was fortunate for me that a bolt-on upgrade was so readily available, so promptly shipped, and expertly installed by mechanics who had previously worked on Mountune equipment in California. Thanks to all of you for making this so simple.

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