Transmission Cooling Pan, Reduces Fluid Temps up to 50°F, Increase CapacityDerale's Transmission Cooling Pan #14207 uses air passing beneath the vehicle and redirects it to help lower transmission oil temperatures. Designed for GM's heavy duty 4L80E transmissions, this pan features brazed, turbulator equipped airway tubes passing through the lower section of the transmission pan for more efficient cooling, each is individually pressure tested to ensure a leak free pan. We've included a much stronger magnetic drain plug and