Transmission Coolers

Transmission Coolers: Keep Fluid Temps Down Under Load

A transmission cooler is a heat exchanger that pulls automatic or dual-clutch fluid out of the gearbox, runs it through a core in the airflow, and returns it cooler. Heat is what kills transmission fluid, and fluid is what protects the clutches and bearings inside the case. If you tow heavy, run a tuned truck, hammer a track car through gear changes, or crawl at low speed with no airflow, fluid temps climb fast. Fitting one of these transmission coolers gives the fluid somewhere to dump that heat, which is the single most effective thing you can do to extend the life of an automatic or DCT gearbox.

What We Stock

There are 35 transmission coolers in this category from 4 brands: Mishimoto makes up the bulk with 31 of them, alongside Fleece Performance, AMS and HKS. Prices currently run from $87 to $3,098 for what is in stock right now, which is a range and not a fixed promise. Coverage leans heavily on trucks and performance cars: 29 of the 35 products carry fitment data spanning model years 1994 to 2023, with top vehicles including the Ford F-150, F-250 and F-350, Chevrolet Silverado, GMC Sierra, BMW M3 and M4, Nissan GT-R, Toyota Tacoma and FJ Cruiser, Subaru WRX, Mitsubishi EVO X and Dodge Ram 2500/3500.

How To Choose

The split here is between complete kits and standalone cores. Diesel truck owners hauling weight will want a full line kit like the Fleece 94-02 Cummins cooler and line kit or the Mishimoto 2020+ 6.7L Powerstroke kit, which include the plumbing to make the install straightforward. Performance-car buyers on a DCT or SST gearbox have direct-fit options like the Mishimoto G8X M3/M4 cooler and the AMS EVO X SST oil cooler kit. At the top of the range sits the HKS DCT fluid cooler for the R35 GT-R, a vehicle-specific unit for a car that generates serious gearbox heat. Buy the kit if you want everything in the box; buy a bare cooler if you already have lines and fittings sorted.

What Else You Need

A cooler is one part of a healthy drivetrain. If you are already under the car, it is worth looking at clutch components and flywheels for manual and dual-clutch cars, or differential components and differential covers for the rear end that also benefit from better heat management. For shift feel, browse shift components. Everything sits under the main drivetrain section if you want to see the full catalog.

Fitment And Ordering

Because coverage is vehicle-specific, confirm the cooler matches your exact year and model before you order. If you are unsure, call for fitment help at 813-535-5801 or reach us through contact us. Every order ships with free shipping, and Affirm and Katapult financing is available at checkout.

Transmission Coolers: Keep Fluid Temps Down Under Load

A transmission cooler is a heat exchanger that pulls automatic or dual-clutch fluid out of the gearbox, runs it through a core in the airflow, and returns it cooler. Heat is what kills transmission fluid, and fluid is what protects the clutches and bearings inside the case. If you tow heavy, run a tuned truck, hammer a track car through gear changes, or crawl at low speed with no airflow, fluid temps climb fast. Fitting one of these transmission coolers gives the fluid somewhere to dump that heat, which is the single most effective thing you can do to extend the life of an automatic or DCT gearbox.

What We Stock

There are 35 transmission coolers in this category from 4 brands: Mishimoto makes up the bulk with 31 of them, alongside Fleece Performance, AMS and HKS. Prices currently run from $87 to $3,098 for what is in stock right now, which is a range and not a fixed promise. Coverage leans heavily on trucks and performance cars: 29 of the 35 products carry fitment data spanning model years 1994 to 2023, with top vehicles including the Ford F-150, F-250 and F-350, Chevrolet Silverado, GMC Sierra, BMW M3 and M4, Nissan GT-R, Toyota Tacoma and FJ Cruiser, Subaru WRX, Mitsubishi EVO X and Dodge Ram 2500/3500.

How To Choose

The split here is between complete kits and standalone cores. Diesel truck owners hauling weight will want a full line kit like the Fleece 94-02 Cummins cooler and line kit or the Mishimoto 2020+ 6.7L Powerstroke kit, which include the plumbing to make the install straightforward. Performance-car buyers on a DCT or SST gearbox have direct-fit options like the Mishimoto G8X M3/M4 cooler and the AMS EVO X SST oil cooler kit. At the top of the range sits the HKS DCT fluid cooler for the R35 GT-R, a vehicle-specific unit for a car that generates serious gearbox heat. Buy the kit if you want everything in the box; buy a bare cooler if you already have lines and fittings sorted.

What Else You Need

A cooler is one part of a healthy drivetrain. If you are already under the car, it is worth looking at clutch components and flywheels for manual and dual-clutch cars, or differential components and differential covers for the rear end that also benefit from better heat management. For shift feel, browse shift components. Everything sits under the main drivetrain section if you want to see the full catalog.

Fitment And Ordering

Because coverage is vehicle-specific, confirm the cooler matches your exact year and model before you order. If you are unsure, call for fitment help at 813-535-5801 or reach us through contact us. Every order ships with free shipping, and Affirm and Katapult financing is available at checkout.