MISHIMOTO Ford Fiesta ST Performance Radiator, 2014-2019

The 2014–2017 Ford Fiesta ST is a highly capable platform for track days and autocross, but sustained high‑load operation can expose shortcomings in the factory cooling system. Consistent lap performance becomes difficult when coolant temperatures rise quickly, forcing early cooldown periods. Mishimoto addresses these limitations with a high‑capacity, all‑aluminum performance radiator engineered specifically for the 2014–2017 Fiesta ST.

Constructed from 100‑percent aluminum and built around a robust 3‑row core, this radiator delivers maximum cooling efficiency for demanding applications. The core measures 52 mm thick, requiring innovative engineering to optimize fan and shroud fitment. Unlike standard Mishimoto radiators, this unit includes a compact fan shroud designed to retain the OEM electric fans while improving airflow through the core. Extensive testing confirmed that airflow performance remains intact for high‑load operation.

During steady‑state driving, the Mishimoto radiator reduced coolant temperatures by 10°F (5.5°C) compared to the stock radiator and fan‑shroud assembly, providing reliable thermal control lap after lap. As with all Mishimoto Fiesta ST components, this radiator is backed by the Mishimoto Lifetime Warranty.