Automatic Transmission Fluid Cooler Assembly ️

This transmission oil cooler is a key protection part for vehicles with an automatic gearbox. It is needed to keep ATF temperature stable when you drive in traffic, tow, climb hills, or in hot weather. When ATF overheats, it loses viscosity and the gearbox starts to slip, shift harshly, and wear faster.

How It Works

Hot ATF flows from the transmission into the cooler, where heat is transferred away through the metal core. The cooled fluid then returns to the transmission to lubricate clutches, valves, and bearings. By controlling heat, it helps maintain smooth shifting and extends transmission life.

Signs the Cooler Is Failing ⚠️

If the cooler is blocked, leaking, or internally damaged, you may notice ATF leaks, burnt fluid smell, delayed engagement, overheating warnings, or shuddering shifts. In severe cases, coolant and ATF can contaminate each other, leading to costly internal damage.

What Happens If You Ignore It

Driving with a bad cooler can cause repeated overheating, clutch burn, valve body issues, and ultimately complete transmission failure. Replacing the cooler early is far cheaper than rebuilding a gearbox.

Compatible Models ✅

• Qx60/Jx
• Qx60 Hybrid
• Qx60 Hybird