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Monthly Archives: April 2025

  1. Truck with bullbar and Mishimoto transmission cooler

    When to Replace Your Transmission Cooler – The Mishimoto Guide

    April 18, 2025
    Josh Wayman

    Whether you're hauling a heavy trailer through the mountains or crawling over rocks in 4WD low, your truck’s transmission is under constant stressβ€”and that stress generates heat. Lots of it. Left unchecked, heat is one of the fastest ways to wear down a transmission. That’s where a transmission cooler steps in. So, what does a transmission cooler actually do, and why might it be time to consider replacing or upgrading one?

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    An automatic transmission operates by using hydraulic fluid to transfer power, control gear changes, and lubricate internal components. Every time your truck shifts, tows, climbs, or even just idles in traffic, that fluid heats up. Ideally, it stays within a temperature window around 175Β°F, but under heavy load, temps can climb fastβ€”often past 225Β°F or even 250Β°F. That’s bad news for longevity.

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    A transmission cooler functions as a dedicated heat exchanger, just like your radiator or intercooler. It works by routing hot ATF (automatic transmission fluid) away from

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  2. Image of the Mishimoto Aluminum coolant expansion tank.

    Taco Tank – Aluminum Expansion Tank for the 2024+ Toyota Tacoma

    April 04, 2025
    SVP Vehicles, 2024+ Toyota Tacoma
    Josh Wayman

    With the arrival of the fourth-generation Tacoma and its all-new 2.4L turbocharged powerplant, our engineers jumped at the chance to dive under the hood and get to work. Every new generation brings fresh challenges and fresh opportunities, and for us, that means figuring out where we can improve on OEM design to better serve the drivers who take their trucks beyond the pavement. The expansion tank was one of the first components we had our eyes on.

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    Like most stock units, it’s made from plasticβ€”a material that works well enough under normal conditions but can show its limits over long-term use. Off-roading, heat cycles, and time itself will eventually take their toll. That’s where our latest upgrade comes in.

    The Mishimoto Aluminum Expansion tank for the 2024+ Toyota Tacoma installed in the engine bay.

    Crafted entirely from aluminum and TIG-welded for strength, the Mishimoto Aluminum Expansion Tank for the 2024+ Toyota Tacoma ditches the fragile seams and aging plastic of the OEM unit. But this tank isn’t just about longevityβ€”it’s about practicality, too. Our engineers included

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  3. Choose Your Fighter – Mishimoto Universal Oil Cooler Kits

    Choose Your Fighter – Mishimoto Universal Oil Cooler Kits

    April 03, 2025
    Josh Wayman

    When it comes to keeping engine oil temperatures in check, a high-quality oil cooler is essential for performance vehicles and trucks (even those of the electric variety). Excessive heat can break down oil, reducing its viscosity and leading to premature engine wear. To combat this, Mishimoto offers two universal solutionsβ€”the 23-Row and 25-Row Oil Cooler Kitsβ€”each designed to serve different needs while delivering outstanding cooling performance. Both kits include an 8-inch fan capable of moving 600 CFM of air at 3,000 RPM, ensuring consistent cooling even in low-airflow conditions. But what sets these two oil coolers apart?

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    The 23-row fan kit is built with a robust 68mm-thick tube-and-fin core design and features strutted tubes. This extra thickness increases fluid capacity, making it an excellent choice for those who prioritize maximum heat dissipation. The strutted tubes provide additional strength, making this cooler a great fit for race applications or any setup where durability

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