Mishimoto Aluminum Radiator Toyota Yaris GR (2020-2026)

The Toyota Yaris GR delivers an extraordinary amount of horsepower from its small 3-cylinder engine! Each cylinder operates at its limit, while the cooling system works hard to keep up. Extended track sessions or traffic jams quickly overwhelm the stock cooling system, with some owners observing oil temperatures exceeding 260°C on the track.

The standard oil cooler, a liquid-to-liquid type, relies on coolant temperature to regulate oil. If the radiator falters, the oil inevitably follows. Mishimoto thus offers a high-performance aluminum radiator to control the temperature of every engine component in the Yaris GR.

This all-aluminum radiator replaces the stock plastic tank unit with a core 51% larger. This volume increase boosts coolant capacity and heat dissipation, reducing stress on the entire system. The core features reinforced tubes and louvered fins to optimize the entire cooling surface. The wider, single reinforced tubes outperform multi-row cores in efficiency while stiffening the structure against impacts (potholes, track excursions). Louvered fins direct air through the core for better heat evacuation, and included sealing foams channel cool air directly inside.

Beyond performance, Mishimoto prioritizes durability and easy maintenance. Reinforced intercooler mounts allow installation of a larger model (like Mishimoto's) without breakage risk. The extended drain port with slotted plug simplifies operations without mess. This Yaris GR radiator also benefits from Mishimoto's Lifetime Warranty, ensuring lasting performance.